New refrigeration & heating installations

With an extensive range of products and solutions that can be adapted to meet all of our customer’s needs, the team here at Star Refrigeration can handle every element of the process, from design, installation, commissioning, as well as a planned preventative maintenance programme once the installation is complete.

Star provide brand new refrigeration and heat pump installations for a multitude of large-scale industrial applications, and across a broad range of industries, including food and drinks manufacturing, cold storage and distribution, pharmaceutical, petrochemical, HVAC and ice rinks. We are able to offer standard and custom-built solutions that are crafted to each customers' needs, for the ultimate bespoke refrigeration installation.

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Rob Lamb

Group Sales and Marketing Director

Related Case Studies

  • East Kilbride Ice Rink


    Star Refrigeration is helping one of Scotland’s most-loved ice rinks to improve both its service to skaters and curlers and its environmental credentials by replacing their existing R22 refrigeration system with an eco-friendly and highly efficient Azanechiller 2.0.

    The natural cooling contractor’s latest Azanechiller 2.0 will provide East Kilbride Ice Rink with a solution that will significantly reduce the rink’s energy costs and environmental impact which avoids the uncertainty of synthetic refrigerants caused by the F-Gas Regulations.

    East Kilbride’s famous ice rink is currently undergoing complete replacement in order to bring the facility into the 21st century. Originally inspired by Houston’s The Galleria shopping mall, the ice rink attracts between 115,000 and 120,000 visitors through its doors every year. Playing host to a wide range of events, from curling to ice skating parties and even family days out, the rink is very much a fixture in locals’ lives and requires a strong, reliable backbone to support it into the future.

    Star Refrigeration’s expertise in the specialist field of ice rink design and installation helped the company succeed in securing the project following a competitive tender. Having designed and installed a significant majority of the permanent ice rink facilities in the UK leisure industry for the last 45 years, including the original ice rink in the shopping centre, helped demonstrate that Star were the right choice for the job.

    Gerry Campbell, the General Manager of South Lanarkshire Leisure and Culture said, “After a long and productive partnership with Star, SLLC are delighted that they have been selected to provide so much of the fundamental equipment at the newly refurbished East Kilbride Ice Rink.”

    “The new ammonia based chiller system with its significantly improved energy consumption will be an essential part of our successful operation.”

    “The excellence of the service received over the past 25 years from Star ensures we can look forward to the next years comfortable in the knowledge that the single most important piece of equipment will be well installed and well maintained.”

    The refurbishment project includes the removal of existing floor, plant and barriers, and the supply and installation of a new ammonia air cooled chiller, pump set, ice rink floor, barrier system, curling stone storage area, interconnecting pipework and wiring.

    The Azanechiller 2.0 is an air-cooled, packaged ammonia chiller which incorporates energy saving technology and delivers cooling efficiencies that are 71% higher than the EU’s EcoDesign Directive’s requirements and 20% higher than competing high efficiency chillers. In addition, the use of ammonia, a natural occurring refrigerant with zero ozone depleting and global warming potential, will keep the rink in line with current regulations which have banned the use of R22 due to its ozone depleting potential.

    The installation works are being carried out in conjunction with the main contractor’s larger redevelopment of the area around the ice rink, within the Olympia Mall. In order to facilitate a successful and timely delivery, Star’s engineering team scheduled the removal of the existing floor during the night, which allowed for the other works to continue without disruption. Star Refrigeration have a vast experience working in collaboration with main contractors, with ice rinks being a key specialist sector, which proved to be fundamental for this project as the contractor required to be fully reliant on Star's expertise to execute the new ice rink facility and guarantee a successful delivery.

    The standalone air cooled modular Azanechiller 2.0 AA415MT-2 model is part of a specifically designed MT range for medium temperature applications with two compressors to provide extra resilience, and will be installed with run/standby pumpset. The total installation offers numerous benefits, including reduced energy consumption, low maintenance requirements and the advantages of using a zero GWP refrigerant, which future proofs the ice rink against new environmental legislation. The Azanechiller also offers proven exemplary safety credentials and reliability, reduced life cycle costs when compared to the next best alternative, and a long life expectancy of over 20+ years.

    Lewis Brown, Business Development Manager for Star Refrigeration who is overseeing the project through from its inception, said, “East Kilbride ice rink’s state of the art Azanechiller 2.0 has a Seasonal Energy Performance Ratio (SEPR) of 4.32, which is 71% higher than the EU EcoDesign Directive requirement.”

    “Our research showed life cycle cost savings of £278,000 and carbon savings of 1,204 tons of CO2 over 20 years for this specific application when compared with ‘best in class’ ammonia screw chillers.”

    Star Refrigeration has long ties with East Kilbride ice rink, having installed their previous system – which lasted 26 years and operated round the clock – when it was first opened in 1989. The rink is also located just 10 minutes away from Star’s head office and manufacturing facility with in-house design team in Glasgow. This is a welcome extra layer of assurance for the ice rink which will have a dedicated, fully qualified engineering team readily available 24/7.

    The installation is expected to be completed by the end of the year. Star Refrigeration’s local Bellshill branch will continue to offer support through a three year maintenance programme to ensure the ice rink performs at optimal design conditions. 


  • Aberdeen Curling Rink


    Star Refrigeration has confirmed its position as the market leader in ice systems for the UK leisure industry, with the completion of a world class curling rink in Aberdeen.

    Over the past 35 years, Star has designed and installed refrigeration systems for over 70% of the UK’s ice rinks. The cooling solutions specialist has also designed and built a range of ice-climbing walls and ice-based visitor attractions for the leisure industry clients.

    Star’s latest ice system was developed for the new Curl Aberdeen facility in Summerhill, Aberdeen. The purpose built indoor facility is North East Scotland’s main centre for the traditional winter sport of curling.

    The building houses a large six sheet curling rink with a total floor space of 1,350 metres square.

    Star designed an ice system that would provide optimum coverage across the entire curling rink floor. It was vital that the surface of the rink was level and that the temperature, quality and hardness of the ice remained even and constant.

    Star¹s ice system for Curl Aberdeen comprises an ammonia refrigeration plant connected to specially designed flooring. The plant chills glycol to a low temperature prior to circulation through a network of cooling pipes embedded in the ice rink floor.

    Rob Lamb, Sales Director of Star Refrigeration, says: “Curl Aberdeen is another example of Star's expertise in providing world class ice for sport and recreation. Star has over three decades of experience in ice rink design and installation. We are dedicated to providing rink operators with reliable, efficient and easily maintained ice systems.”

    Star's refrigeration plant for Curl Aberdeen is a packaged chiller with a cooling capacity of 253kW. It features twin reciprocating compressors, a patented low pressure receiver and plate and shell heat exchanger.

    Curl Aberdeen is now approaching the end of its first full season (September to April). The centre is home to 27 curling clubs and also features changing rooms, lounge, bar and catering facilities.

    The new facility was visited by Her Majesty Queen Elizabeth II in October 2005. The Queen enjoyed a curling display and unveiled a commemorative plaque to mark the official opening.

    Curl Aberdeen is the latest in a long line of ice rink and specialist ice projects for Star. Previous specialist leisure ice installations include the world's largest indoor ice-climbing wall at The Ice Factor in the West Highlands of Scotland in 2003. Star has also designed and built unique ice-based visitor attractions at Our Dynamic Earth in Edinburgh and The Deep in Hull.

    Star Refrigeration is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and maintenance of industrial refrigeration systems. The company offers a turnkey package to all users of refrigeration plant.

    Star’s technical advisory arm, Star Technical Solutions (STS), operates as an independent consultancy providing advise on refrigeration engineering issues. Star also owns food freezing and chilling equipment specialist Starfrost, as well as mechanical and electrical contractors Penec.


  • Alstom


    Star Refrigeration has developed an innovative gas recovery and recycling system for Alstom, the power plant solutions specialist.

    Alstom specialises in the design and manufacture of steam turbines, gas turbines and hydro power plants. The company continually develops new products to improve power plant and component performance.

    Star’s thermodynamic system has been installed at Alstom’s UK research facility in the Midlands. The system was developed to replace existing equipment with a more environmentally efficient solution.

    The new dual-purpose system supplies HFC refrigerant R134a to a research and development (R+D) test facility. The gas is then recovered and condensed by the system, before it is recycled.

    The plant features an air-cooled evaporator and condenser in one unit. The evaporator uses ambient air to generate 1000kg/hr of R134a gas from liquid at 3.5 Bar (A).

    A reciprocating compressor delivers superheated gas to the R+D test facility at the required pressure. The gas is later recovered and condensed in an air-cooled condenser.

    It is then stored as a liquid in a high pressure receiver, before being re-circulated by the system.

    The system also features a unique Star manufactured purger, capable of removing up to 4kg/h of non-condensable gases. The plant is operated by Telstar, Star’s patented computerised control system.

    Alstom’s innovative system was developed in consultation with Star’s technical advisory arm, Star Technical Solutions (STS). STS operates as an independent consultancy, working alongside Alstom from the design stage through to commissioning.

    Star-owned mechanical and electrical contractor Penec was responsible for the removal of an existing electrical system. Penec also completed the installation of new electrical panels and wiring.

    Star Refrigeration is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and maintenance of industrial refrigeration systems. The company offers a turnkey package to all users of refrigeration plant.

    Star's technical advisory arm, Star Technical Solutions (STS), operates as an independent consultancy providing advice on refrigeration engineering issues. Star also owns food freezing and chilling equipment specialist Starfrost, as well as mechanical and electrical contractors Penec.


  • Anglian Meats


    Star Refrigeration has recently completed the installation of a new cold store facility within an existing warehouse building for pet food manufacturer and distributor, Anglian Meat Products Ltd.

    Anglian Meat Products is a leading manufacturer and distributor of frozen and ambient pet food products exported to over 20 overseas territories, whose portfolio includes the Natures Menu and Prize Choice pet food ranges. Due to continued business growth and space constraints at their original storage depot in Leeds, Anglian Meat Products took the opportunity to move into larger warehouse premises when they became available on the same industrial estate.

    Unlike their original depot, the new warehouse premises comprised no cold storage facility and as such, cooling solutions specialist Star Refrigeration was approached to design and manage the total solutions installation of a new 70 pallet -18°C refrigerated cold storage chamber. As well as the cold store refrigeration plant and insulated structure, Star was also responsible for upgrading the mains and sub-mains electrical distribution within the building, cold store lighting, emergency lighting, small power, builders work to accommodate the new condensing units, evaporator support steelwork and the role of Principal Contractor and CDM Co-ordinator as defined by the CDM Regulations 2007.

    Anglian Meats Managing Director, Scott Maunder, says: "Star’s ability to deliver a total solution meant that we could undertake this project on a satellite site with minimal input, whilst confident of a successful outcome. They developed a cost effective, energy efficient solution and delivered it on time and within budget."

    The cold store chamber measures around 850 cubic metres and requires to be maintained at a temperature of -18°C. Cooling is provided by two independent refrigeration plants operating on a direct expansion basis with the synthetic refrigerant R404a.

    The two refrigeration plants each comprise a ceiling mounted evaporator connected to an air cooled condensing unit. The capacity of each plant is nominally 14kW i.e. 60% of the estimated maximum heat load.

    The plants have been designed with efficiency in mind, incorporating the use of electronic expansion valves and ‘defrost on demand’ functionality. The use of electronic expansion valves means that the plants can operate at lower head pressures for significant periods of the year and also that much closer superheat control is achieved, thereby increasing the wetted surface area within the evaporator and enhancing performance. The use of electronic valves guarantees optimised performance all year round regardless of load on the plant, and enables energy savings of around 15 to 20% when compared to an equivalent system fitted with a standard thermostatic valve.

    The newly installed evaporator controllers not only look after control of the electronic expansion valve, but also incorporate a ‘defrost on demand’ functionality. This enables significant energy savings when compared with standard timed defrost systems, as the evaporator is only defrosted when required, thereby avoiding the introduction of unnecessary heat into the store.

    Anglian Meats are delighted that initial records show the new plant is consuming 15% to 20% less energy.

    Star provides total cooling solutions for refrigeration, air conditioning and process cooling. The company offers a turnkey supply and support package to all users of cooling equipment. Star continues to invest in the development of new products to provide energy conscious cooling systems for the benefit of customers and the environment.


  • Arla Foods


    Star Refrigeration has installed a high efficiency multi-temperature cooling plant at Arla Foods in West Yorkshire.

    The project by industrial cooling and heating specialist Star formed part of Arla’s third phase of investment in additional production facilities at its flagship dairy in Stourton, Leeds. Having been involved in refrigeration works throughout the previous construction phases, Star was responsible for designing a high efficiency cooling system to allow Arla to manufacture cottage cheese for the first time in the UK.

    With an overriding commitment to reduce energy consumption and CO2 emissions, Arla was looking for an environmentally conscious cooling solution. Star designed, supplied and installed a state-of-the-art central ammonia refrigeration plant, with energy saving equipment and control.

    The plant has a 5MW total cooling demand and operates at three separate temperature levels. A chilled water circuit provides cooling for the building’s heating, ventilation and air conditioning (HVAC) systems. Ice water is circulated to meet various process cooling demands within the production facility. Sub-zero glycol also provides cooling for a 2°C cold store and a blast chilling tunnel.

    Star Refrigeration’s Group Sales and Marketing Director Rob Lamb says: “Arla’s main focus was on an energy efficient, environmentally-sound cooling solution and we worked in close partnership on the design of the system. We opted for naturally occurring ammonia refrigerant because it has zero global warming potential and is non-ozone depleting.”

    He adds: “The installation of a central plant with three different cooling temperatures for process, HVAC and cold storage requirements ensured that refrigeration for each demand was achieved at maximum efficiency.”

    The central ammonia system consists of five screw compressors, three featuring inverter drives to optimise part load efficiency. Heat is rejected via three evaporative condensers with inverter driven fans that are located above the plant on the roof of the building. Other energy saving features include inverter controls for the glycol/water circulation pumps, floating head pressure control and floating suction pressure control.

    Star’s Telstar computerised control system constantly monitors and adjusts operating conditions to optimise efficiency. Star also provides an online 24-hour a day fault monitoring service.

    As well as supplying all of the plant room equipment, Star was responsible for the installation of a 1.5MW cooling tower for high temperature process water cooling, a number of coldstore coolers and associated pipework.

    When it comes to designing energy efficient cooling and heating systems, Star is a natural innovator. Star works with strategic partners across the globe to deliver low carbon, cost saving solutions.


  • Farmfoods


    Star Refrigeration has completed a major cooling project in partnership with frozen food specialist Farmfoods, for their new distribution centre in Avonmouth. Farmfoods originated in Aberdeen in 1955 and now operates around 300 stores in the UK. The new distribution centre in Bristol will supply the southern retail stores as a result of a review of their distribution operation.

    Farmfoods were looking for a modern and efficient refrigeration system using a natural refrigerant to compliment their existing distribution centres. Following a competitive tender process Star Refrigeration was chosen for the project and designed an energy efficient and environmentally conscious refrigeration package using their Azanechiller and Azanefreezer units. These were chosen due to their simplicity and exceptional efficiencies across a wide range of operating conditions.

    The installation comprises of two modular coldstore packages with the capability to add a third package in the future and a modular chillstore package with spare refrigeration capacity to accommodate future additional load.

    The coldstore packages utilize waste heat recovered from the refrigeration systems to heat a glycol underfloor heater mat contained within the coldstore floor slab. They also use Star's patented Reverse Cycle Defrost (RCD) valve ensuring quick efficient defrosts within the coldstore without the need for any additional electrical heating.

    James Ward, Star's Director of Food Sales says: "The Azanechiller offers a significant increase in performance compared with standard HFC chillers. Its packaged design and careful component selection result in an ultra low refrigerant charge, with all ammonia contained within the chiller and outside the production facility. This means a refrigerant charge as little as 0.1kg per kW."

    The system includes a 2 year warranty as well as a 5 year preventative maintenance programme. Both the coldstore and chillstore systems have remote dial in/out access and the maintenance package includes a number of condition based monitoring techniques such as vibration monitoring, thermographic scans and oil sampling.

    The total installation offers numerous benefits including low maintenance and reduced energy consumption, as well as the environmental advantages associated with ammonia as a natural refrigerant. Other benefits include:

    • Modular design - "Plug & Play"
    • Small footprints
    • No plant rooms required
    • Low total cost of ownership
    • Low maintenance costs

    Star developed the Azanechiller and Azanefreezer range of ammonia packages to meet the cooling requirements in a wide range of markets. Suitable for cooling direct refrigerant, water and glycol, these packages are ideally suited to applications in food processing, temperature controlled storage, building services and process cooling.


  • Asda Bedford


    The historic town of Bedford lies in the heart of the English countryside, on the banks of the Great Ouse, and close to the M1 as it runs north from London. Close to the motorway and roughly half way between London and Birmingham, this was the ideal location for ASDA’s latest addition to their national chain of Chilled Distribution Centres (CDCs). Under Gazeley Properties, the property development arm of ASDA, a new construction methodology has been developed which can provide a functional ambient distribution centre within 16 weeks of cutting the first sod on a green field site. Of course cold stores take a little longer, but the programmes achieved on Bedford and its predecessors at Washington and Wakefield are no less impressive. Wakefield was up and running within 28 weeks of the site start, and Bedford, which is 50% larger has just beaten that record.

    Work started on the Bedford site in April 2001, and the first products rolled through in September, just 24 weeks later. The need for speed in these construction projects has been a deliberate part of ASDA’s strategy.

    This fast track programme was achieved by building contractor Simons Construction working in partnership with ASDA, and bringing in specialist sub-contractors like Star Refrigeration Ltd for the works packages.

    Andy Pearson, Managing Director of Star Refrigeration’s Contracts Group, highlighted the implications of this new approach. “In a traditional contract, the same system may be designed three or four times over; first by the client and his consultant designers, then by the builder and finally by the installer. We sat down with ASDA and their team, including WSP and Simons, on day one, and the design was done once.  This obviously saves money for the project as a whole, but more importantly it eliminates confusion and mistakes, and it saves lots of time.”

    The system design reflects ASDA’s requirements for a plant which is not only safe and efficient in operation, but is also futureproof. Five years ago they recognised that R22 was going to disappear, and that for systems of this size the HFCs do not offer a cost-effective alternative. Their industrial systems are therefore based on ammonia, with the charge kept to a minimum by using low pressure receivers. The –25°C cold store at Bedford is served by three LPR packages. Each has a capacity of 391kW, but the total ammonia charge is only 780kg, and of course this is divided between the three modules. Defrost is by reverse cycle, which runs the plant as a heat pump for a short time. This means that the inefficiencies found in hot gas defrost valve stations are eliminated, as is the risk of ammonia leakage in the roof void. This is not an insignificant point for ASDA, because the majority of ammonia leaks in roof voids - which represent a real threat of disruption to the normal operation of the distribution centre - are found on traditional valve stations. Another area of risk, manual oil recovery, has been eliminated by using automatic oil return systems. This is only possible because Star use polyalphaolefine lubricant instead of traditional mineral oil. “This is recognised as the Rolls-Royce of oils,” explained Andy Pearson, “but we are happy to pay a premium for it because it provides huge benefits in the operation of the plant.” 

    The three chill stores have a total area of 22,018m2. They are served by a chilled glycol system with a total capacity of 2802kW, and defrost is by warm glycol. Each chiller package uses a low pressure receiver and plate heat exchanger to provide efficient operation from a compact unit with minimal ammonia charge. The glycol temperature is maintained at –8°C, but maximum efficiency of the compressor packages is achieved by ensuring that compressors only run at full load, with economisers enabled, or else are turned off. This is made possible through the use of duplex compressor packages, where two machines are mounted on each oil tank. This gives six steps of capacity control, which is sufficient to control the glycol temperature to within half a degree of the setpoint. To improve the plant efficiency further, the glycol pumps are also capacity controlled.

    In seeking the best performance from their new plants, ASDA have not been afraid to innovate, and have incorporated several unusual features in the site. The cold store loading docks for receiving and despatch are in twelve individual pods, and both sides are treated with desiccant dehumidifiers which deliver dry air to each pod. This has completely eliminated problems of wet or icy floors in more traditional loading docks. The air delivered by the dehumidifiers is chilled to +4°C  by a feed of cold glycol from the main circuit. The desiccant driers have greatly reduced the problems associated with door discipline and defrosting coolers, and the expected payback on their addition to the main installation is expected to be less than 15 months.

    The whole refrigeration plant is controlled and monitored by the latest generation of Star’s TELSTAR control system, including a full PC based SCADA system. This novel and unique interface allows plant operators to replay key events in the plant operation as if they were watching a video recording of the graphics screen. This can be in slow motion or fast forward, and it is proving to be a big hit with commissioning and maintenance engineers alike. It allows full analysis of all aspects of plant performance, without weary hours spent taking readings of all the relevant parameters. Even better, once the system has been set up these parameters can be checked remotely, ensuring that the plant is kept at top performance, and does not drift into inefficient operation. “We’re delighted with the response to the new look TELSTAR.” said Andy Pearson. “In recent years it has become much more difficult to justify the cost of engineering our own controls system, but in this case we have had a fantastic reaction from our field engineers and our customers. Our first site installation was at ASDA’s Grangemouth RDC, and since then it has been a ‘must have’ on all the new ASDA projects.”

    So what about the future? Each project is followed by a review of all aspects, and lessons are carried forward to the next phase. “We are happy to have set a new benchmark for composite operation, but we believe that in the near future we will making substantial steps forward in efficiency, in installation cost and in reliability.” Will this be on the next project? “Watch this space!”

    Star Refrigeration is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and maintenance of industrial refrigeration systems. The company offers a turnkey package to all users of refrigeration plant.

    Established in Glasgow in 1970, Star has over 260 employees nationwide and provides fast response 24-hour technical support from a network of nine branches to customers throughout the UK.

    Star’s technical advisory arm, Star Technical Solutions (STS), operates as an independent consultancy providing advice on engineering issues. Star also owns food freezing and chilling equipment specialist Starfrost, as well as mechanical and electrical contractors Penec.


  • Asda DC, Skelmersdale


    2003 in the UK was the hottest year on record, with a summer that saw the recorded temperature exceed 38°C for the first time. In two parts of the UK things were not so much hotting up as cooling down, as two significant refrigeration projects were underway.

    They were two new Central Distribution Centres (CDCs), being built for ASDA in Falkirk and Skelmersdale. The projects were significant for a variety of reasons, including: their physical size, the timescales to build them, the commercial arrangements agreed and the technical innovation involved.

    In terms of size, they are among the biggest temperature controlled buildings in the UK, with a total combined internal volume of 412,000m3. That’s enough space to swallow over 5,000 double decker buses!

    Despite their size the installations were built at a breathtaking pace, with the overall programme at Skelmersdale being just 30 weeks, from cutting turf to passing product through the installation. One of the main reasons these impressive statistics areachievable is the enlightened “partnering” approach that ASDA has adopted for running these large, multi-discipline projects. The project team, including all the key sub-contractors, is formed at the initial stages of the project. The team then works to deliver exactly what ASDA require, with the specialists inputting effectively to the project at the concept stage. Open book tendering is used to develop costs, with all aspects, including overhead recoveries and profit, being agreed ahead of the price being finalised. ASDA and Star have worked in this way for several years, with similar projects completed in Wakefield and Bedford.

    And what was technically innovative about the installations? They both utilise the natural refrigerants carbon dioxide (CO2) and ammonia (NH3). Each site has a cold store and a series of large chill rooms,operating just above 0°C.  The refrigeration plant for the  -25°C cold store operates as a cascade system, with CO2 being used as the low temperature fluid in a standard vapour compression cycle, rejecting its heat to the NH3 system. CO2 is then used as a volatile secondary refrigerant for the chill areas, being pumped out at –5°C, the condensing temperature for the cold store circuit, and returning as a vapour at the same condition, for condensing by the NH3 system.

    The CO2 systems utilise components suitable for operation at the higher pressures required for this fluid. The high pressure side of the CO2 circuit is rated for 51 bar(g), while its low pressure side is rated for 40 bar(g). Oil injected screw compressors, packaged by Star, are used for the low temperature CO2 circuit; along side a highly efficient oil retention and recovery system, operating a 3-stage separation process. Their swept volume is a 10th of what would have been required if ammonia had been used as the low temperature refrigerant. Plate & Shell heat exchangers are used for the CO2 condensers, delivering a compact, efficient and reliable package. The air coolers used in both the cold and chill stores are designed with circuiting that had been optimised for use with CO2, delivering higher performance than comparable coolers using either HFC or NH3 refrigerants.

    The defrost system (figure below) is patented by Star Refrigeration, and involves taking liquid CO2, at the -5°C saturated condition and pumping it up to approximately +9°C saturated, the defrosting temperature, via positive displacement pumps. The liquid is then boiled off, using waste heat from the compressor glycol oil cooling system and given around 10°C of superheat, to ensure there is no condensing of the CO2 in the vapour lines to the heat exchangers. The “hot” gas is then deliveredto the air coolers, via individual valve stations.

    The energy efficiency of the new CDC’s is substantially better than had been achieved on previous sites, even though they were already achieving “best practice” performance. 

    In addition, it has been possible to eliminate ammonia from the refrigerated chambers without using a large charge of fluorocarbon (greenhouse warming gas). The total charge of ammonia in the system is 1,000kg, whereas an ammonia glycol system would have required about 1,500kg and a direct ammonia pumped system charge would have been about 15,000kg. 

    Further environmental benefits have also been achieved. The previous standard system would have used four evaporative condensers, with associated chemical water treatment, but for this system the whole plant heat rejection is achieved with two condensers, so the water treatment is simpler and cheaper.  

    Alongside these benefits, the use of CO2 for both the cold and chill stores has allowed much smaller pipework to be used for distribution of CO2 to the air coolers. With the reduced weight of pipework and associated services to be supported in the roof void it has been possible to simplify the steelwork, resulting in savings in steel capital cost and site programme. 

    The overall cooling capacity of the two installations is 7MW, and they are the first of their kind in the UK. Their completion means that Star has applied CO2 as a refrigerant across a range of temperatures and applications from -54°C to +10°C; for low temperature freezing, cold storage, chill applications, air-conditioning and hot gas defrosting.

    Star Refrigeration is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and maintenance of industrial refrigeration systems. The company offers a turnkey package to all users of refrigeration plant.

    Star's technical advisory arm, Star Technical Solutions (STS), operates as an independent consultancy providing advice on refrigeration engineering issues. Star also owns food freezing and chilling equipment specialist Starfrost, as well as mechanical and electrical contractors Penec.


  • Asda Rochdale


    The green credentials of Asda’s new chilled and frozen distribution centre in the North West have been bolstered by an environmentally conscious cooling system from Star Refrigeration.

    Asda’s new central distribution centre occupies a 44 acre site at the Kingsway Business Park in Rochdale, Greater Manchester, serving stores across the M62 corridor. The 493,000 sq ft multi-temperature storage facility incorporates many carbon reduction and energy saving features.

    A world leader in cooling and heating system innovation, Star worked with Asda’a project team to design an energy efficient refrigeration plant for the new facility. Star has over 40 years experience in industrial cooling systems for the cold storage sector and is currently working in partnership with Asda at the majority of its UK distribution sites.

    Star engineered and installed a two-stage pumped circulation cooling system for Asda, operating on natural ammonia refrigerant. The plant provides 1MW (megawatt) of cooling for Asda’s new frozen food cold store (-21°C), 1.7MW for the chill chamber (+3°C) and 0.5MW of cooling for the produce chamber (+13°C).

    Star Refrigeration’s Director of Sales – Food Market, James Ward says: “This was a new style of building for Asda in the UK, with a single skin construction that demanded a specific type of cooling system. Our team worked closely with the principal contractor to engineer a bespoke refrigeration plant that would deliver the vital energy saving and environmental benefits Asda required.”

    James Ward adds: “The Asda plant provides optimum efficiency and uses an environmentally benign refrigerant in terms of global warming and ozone depletion.”

    The refrigeration plant at Asda’s Rochdale facility features Star-built variable speed drive compressor packages, surge drum units and pumped circulation evaporators with EC fans.  The operating efficiency of the plant is enhanced by Star’s energy saving Aether system, which reduces condenser fan speed and uses floating head pressure control to optimise performance.

    The new refrigeration plant is located in a purpose built energy centre adjoining the main building. Star was also responsible for supplying underfloor heating for the cold store and a dehumidification system for vehicle docking stations.

    Star’s Telstar PLC computerised control system ensures optimum plant performance, with HMI touch screen interface. A range of built-in monitoring systems including pressure, temperature and gas detection are incorporated in the plant design.

    Operational since late 2012, the new Asda site is now benefitting from Starcare, Star’s planned, preventative maintenance (PPM) programme for refrigeration plant operators.  This proactive PPM programme ensures optimum long-term performance and reliability, to increase energy efficiency and reduce lifecycle costs.

    When it comes to designing energy efficient cooling and heating systems, Star is a natural innovator. Star works with strategic partners across the globe to deliver low carbon, cost saving solutions.


  • Blakeman's Stoke


    Leading UK sausage manufacturer Blakeman’s has employed the joint expertise of Starfrost and Star Refrigeration to supply a high efficiency freezing system at its new £4m production facility.

    Freezing and chilling technology specialist Starfrost has installed two custom built Helix spiral freezers for raw sausage production at Blakeman’s showpiece Staffordshire factory. Starfrost’s parent company Star Refrigeration supplied an environmentally responsible plant to provide energy efficient cooling for the new freezing system. Star also installed new cooling systems to supply the factory’s storage and processing areas.

    James T Blakeman & Co Ltd is one of Europe’s leading manufacturers of over 50 sausage and meat products to ready meal, catering and fast food industries. The company has invested in a new industry-leading manufacturing facility to accommodate increasing orders from customers and double production capacity.

    As part of the development programme, Blakeman’s was looking to upgrade from a traditional blast freezing process to a fully automated inline freezing system for a variety of sausage products. Increased energy efficiency, maximum throughput and consistently high quality products were key drivers in sourcing an equipment supplier.

    Company Managing Director, Philip Blakeman, says: “Starfrost was able to supply a bespoke system with a unique air-flow, designed for fast, energy efficient and uniform freezing of different products. Through working together with Star Refrigeration, Starfrost offered a total solution or ‘one stop shop’ for our freezing requirements, which also met our overall environmental policy.”

    He adds: “By combining fully qualified staff with the highest quality ingredients and the world’s best equipment, we are now able to produce a consistently high standard of product.”

    Starfrost custom designed, built and installed two in-line Helix Spiral freezers for Blakeman’s – a twin and a single belt system. The twin belt system allows two different product lines to be processed simultaneously. It features two 760mm wide conveyor belts, each with 18 tiers spiralling around a single rotating drum. The single belt system features a 37-tier spiral. Each freezer is capable of processing up to 3,000kg/hr of raw sausage products.

    Cooling for both freezers is provided by Star Refrigeration’s ammonia pump circulation plant. The plant has a total cooling capacity of 650kW and operates on a high efficiency natural refrigerant to meet Blakeman's environmentally conscious policy.

    It features two screw compressors, one surge drum, evaporative condenser and Star’s Telstar PLC control system, with energy enhancing features to maximise performance. The packaged plant was designed to fit the space restrictions of an existing plant room, with surge drum and condenser located on the roof of the building.

    The factory’s processing area also benefitted from new food specification cooling equipment. Refrigeration plant designed by Star was coupled to existing equipment relocated from a separate Blakeman’s facility. This ensured a high quality installation, whilst operating within the customer’s budget.

    Starfrost’s Helix Spirals have a low tension, flat belt design for ultimate durability and require minimal maintenance. Available with a range of belt sizes and tier heights, the Helix system can be designed to process from 500kg/hr, to capacities over 6,000kg/hr.

    Starfrost’s Helix Spiral is suitable for freezing and chilling food that requires medium to long retention times, such as ready meals, poultry, pizzas, potato products, desserts, pastries, and ice-cream. A product specific “guided flow” air circulation system that can be vertical, horizontal or a combination of directions, ensures quick and even freezing without excessive air speeds.

    Star is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and maintenance of industrial refrigeration systems.


  • BP Chemicals


    The BP facility at Grangemouth is one of the UK's most significant petrochemical sites producing around two million tonnes of products annually. BP’s need was for an industrial process refrigeration package to maintain temperatures within the butadiene circuit especially during higher ambient conditions.

    BP required the refrigeration package to be free standing in a remote Zone 2 IIB T3 hazardous area location on the site where no cooling water was available and had to be designed to meet the process intermittent loads and use an environmentally friendly hydrocarbon refrigerant. Star Refrigeration were awarded the contract to supply this specialised refrigeration system.

    In order to meet BP’s requirements for the package located close to the hazardous area butadiene spheres, Star offered a customised modular air-cooled package designed for operating with another hydrocarbon, propane (R290) refrigerant.

    The customised package was designed to cool 14,000 kg/hour of butadiene fluid from +28°C down to +18°C, equivalent to a refrigeration capacity of 89.5Kw when operating with a maximum ambient design dry bulb condition of +29.5°C.

    The control panel included an Allen Bradley SLC500 PLC provided to control all operating and safety functions of the plant. Hard-wired Zone 2 safety cut-outs/controls were also provided as a site safety requirement.

    Star Refrigeration is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and maintenance of industrial refrigeration systems. The company offers a turnkey package to all users of refrigeration plant.

    Star's technical advisory arm, Star Technical Solutions (STS), operates as an independent consultancy, providing advice on refrigeration engineering issues. Star also owns food freezing and chilling equipment specialist Starfrost, as well as mechanical and electrical contractors Penec.


  • Brakes DC, Aylesford


    Star Refrigeration has installed two energy efficient plants to provide cooling for the cold and chill stores at Brakes’ new distribution centre in Kent.

    Brakes is one of the UK’s leading food distribution businesses. In 2004 the company invested in a state-of-the-art distribution centre to supply foodservice outlets across the South East of England. Located in Aylesford, the purpose built centre features storage and handling facilities for catering supplies including frozen, chilled, ambient and non-food products. 

    As Brakes nominated refrigeration contractor on the project, Star designed and installed two systems for the distribution centre’s cold store and chill store. It was vital that both plants offered natural refrigerant solutions with safe, reliable and energy efficient operation.

    Star designed a direct ammonia refrigeration plant for the cold store and central ammonia plant with a secondary glycol system for the chill store. As a natural refrigerant, ammonia is environmentally friendly and energy efficient. It is widely recognised as a refrigerant that is highly suited to cold store environments.

    Star Refrigeration’s Sales Director, Rob Lamb, says: “The Brakes distribution centre at Aylesford is a flagship project for Star. It is the latest in a long line of cold and chill stores completed for Brakes over many years of partnership between the two companies. Our engineers have a unique insight into the current Brakes operation and are able to meet the company’s demand for high quality, reliable and energy efficient refrigeration systems.”

    Brakes Group Operations Director, Clive Jackson, says: “Star Refrigeration’s proven ability to deliver safe, reliable and energy efficient refrigeration systems made them the obvious choice to realise our vision for the new Aylesford distribution centre. The quality of our product is paramount to Brakes ability to deliver complete solutions to our customers, and the state-of-the-art refrigeration systems installed by Star Refrigeration demonstrate our continued commitment in maintaining the integrity of those products.” 

    Cooling for the frozen food cold store is provided by a direct ammonia refrigeration plant.  The refrigeration capacity of the plant is 218k/W. The plant is designed to maintain air within the 1,974sq/m cold store at a constant operating temperature of -22°C. The cold store is capable of handling 200 pallets of frozen food produce per day.

    The cold store refrigeration plant features a duplex LPR (Low Pressure Receiver) compressor pack, coupled to an air cooled condenser and four air coolers. The plant operates on a critically low refrigerant charge. This is designed to minimise the volume of ammonia on site and reduce the risk in the event of a leak. The plant also features a reverse cycle defrost system to provide a rapid defrost with minimal fluctuation in air temperature.

    The large chill store at the Brakes distribution centre has a total floorspace of 3,512sq/m and features 40 vehicle loading docks. Star’s refrigeration plant is designed to maintain air within the chill marshalling areas at a constant temperature of +4.5°C and also maintain +2°C in a dedicated meat handling area. Reduced air draughts and minimal noise levels were key considerations for Brakes personnel working within the chill store.

    The chill store refrigeration plant comprises a central ammonia system with duplex LPR compressor. This is coupled to a plate heat exchanger with a secondary pumped glycol system. The plant features an air cooled condenser and 18 low speed air coolers. The coolers within the chill store are positioned to ensure maximum air coverage, reduced air draughts and minimal noise levels.

    Both refrigeration plants have a computerised control system to optimise efficiency. The control system has a 24-hour monitoring and dial out facility linked to Star’s local service office. This allows remote monitoring, emergency dial out and off-site interrogation by Star engineers.

    Star Refrigeration is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and maintenance of industrial refrigeration systems. The company offers a turnkey package to all users of refrigeration plant.


  • Brakes Reading


    Brakes has invested in a bespoke cooling system from Star Refrigeration for its landmark multi-temperature distribution centre in Berkshire.

    Brakes recently established a state-of-the-art temperature controlled storage and distribution centre near Reading. Brakes is a leading supplier to the UK foodservice industry and the brand new purpose built facility forms part of the company’s continued drive for sustained growth.

    With an overriding commitment to reduce environmental impact, Brakes awarded the refrigeration contract to Star following a competitive tender process. A world leader in cooling and heating system innovation, Glasgow-based Star designed, supplied, installed and commissioned a bespoke refrigeration plant for cold and chill stores at the new facility.

    Star’s Director of Sales – Food Market, James Ward, says: “Energy efficiency and reduced carbon footprint were key factors in securing the cooling contract for the new Brakes facility in Reading. As well as offering a competitively priced bespoke system, we selected high quality components and built-in design features such as reverse cycle defrost and floating head pressure control, to maximise efficiency and significantly reduce energy consumption.”

    He adds: “Rising energy costs are putting increasing pressure on temperature controlled storage and distribution businesses. With refrigeration accounting for up to 80% of total energy consumption in warehouse facilities, plant design and efficiency is key to cost saving and energy management.”

    Star’s multi-temperature cooling system for Brakes comprises four LPR (low pressure receiver) refrigeration units. The packaged LPR plant has an ultra low charge of ammonia andis designed with energy saving features for highly efficient operation.

    The plant features two direct ammonia LPR systems, which supply cooling to a frozen food cold store (-21ºC) via four ceiling evaporators. Two ammonia/glycol chillers supply cooling to a chill store for meat products (+1ºC), a banana store (+13ºC) and vehicle loading bays via 13 ceiling mounted air coolers.

    Star has a long standing working relationship with Brakes, installing systems in depots across its UK network. As well as supplying cooling solutions for Brakes over many years, Star’s nationwide refrigeration engineering team continues to deliver planned, preventative maintenance support to ensure ongoing plant safety, reliability and efficiency.

    When it comes to designing and maintaining energy efficient cooling and heating systems, Star is a natural innovator. Star works with strategic cost saving solutions.


  • British Airways


    Star Refrigeration’s ammonia thermosyphon cooling system has been granted Millennium Product status by the Design Council, after Prime Minister Tony Blair challenged businesses to show that Britain is the creative powerhouse of the world.

    The thermosyphon cooling system is a highly efficient, water-chilling system designed to provide “free cooling” when weather conditions allow. When the outside temperature is low enough, cooling is achieved without running the chiller’s compressor, which is its major energy consumer, allowing a natural circulation of refrigerant between the evaporator and the condenser to be set up.

    According to Star's Managing Director John Rowell: “In 1997 we developed the thermosyphon cooling system, in association with the building services consultants Justham Dunsdon Partnership, to operate with ammonia as the refrigerant. This system has arguably the highest efficiency and lowest environmental impact of any mechanical refrigeration plant in operation in the world. I am hoping that as a Millennium Product, the ammonia thermosyphon cooling system will be selected for inclusion in the Millennium Dome.”

    The first ammonia system, with a cooling capacity of 3,300kW, was installed for British Airways’ new computer data centre at Heathrow.

    Its power consumption is only 34% of the next most efficient system considered for the project, saving the customer an estimated £166,000 per year in electricity bills. Other thermosyphon cooling projects recently completed include the first single chiller installation for comfort cooling of Natwest’s new telephone call centre in Bradford and a paint cooling application for the Ford Motor Company at their factory in Genk, Belgium. The Natwest Project was the winning entry in the 'As Built Environment' category of the Engineering Council’s 1999 Environmental Award for Engineers.

    Andrew Summers, Chief Executive of the Design Council, said: “We offer our warmest congratulations to Star Refrigeration for the selection of the ammonia thermosyphon cooling system as a Millennium Product. We sincerely hope that it will be a big success for the company and we hope that Millennium Product status will encourage Star Refrigeration in further successful developments.”

    Star Refrigeration is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and maintenance of industrial refrigeration systems. The company offers a turnkey package to all users of refrigeration plant.

    Established in Glasgow in 1970, Star has over 260 employees nationwide and provides fast response 24-hour technical support from a network of nine branches to customers throughout the UK.

    Star’s technical advisory arm, Star Technical Solutions (STS), operates as an independent consultancy providing advice on engineering issues. Star also owns food freezing and chilling equipment specialist Starfrost, as well as mechanical and electrical contractors Penec.


  • Chan Brothers


    Star Refrigeration has completed a major warehouse conversion project in London for frozen seafood supplier Chan Brothers Ltd.

    In a contract valued at £2.7 million, cooling solutions specialist Star assumed the role of principal contractor. Star not only supplied a cold store refrigeration plant, but was also responsible for the complete fit out of the building.

    Chan Brothers imports, stores and distributes seafood to the UK food service trade. The company was looking to develop an existing warehouse into a cold storage facility in the Docklands area of London.

    The converted building was to feature three large cold stores, each with racking for pallets of frozen seafood. Together the insulated cold rooms would provide storage for just under 3,000 pallets, or around 3,500 tonnes of product.

    Cooling solutions specialist Star initially developed a proposal to design and supply a refrigeration plant for the cold stores. Later taking on the role of principal contractor, Star managed all aspects of the building conversion, as well as providing the refrigeration system.

    The building includes a number of environmentally conscious energy saving features, including solar panels for warm water and ground source heat pumps for warehouse heating. A rainwater harvesting system provides water for toilets, general washing down and a vehicle wash facility. Star also established a waste management system, to comply with current regulations.

    Star Refrigeration Sales Director, Rob Lamb, says: “The Chan Brothers project demonstrates our ability to be a ‘total solutions provider’ – a phrase which has become the watchword of our business.”

    Star designed, manufactured and installed an R404a refrigeration plant, featuring triplex compressors, low pressure receiver, nine evaporators and an evaporative condenser. The 282kW system provides efficient cooling for the three cold stores at minus 24 degrees centigrade. 

    In addition, Star organised all building works onsite, including the cold store insulation package, supplied and installed by ISD. Star also oversaw the installation of fixed pallet racking and a touch button mobile storage racking system in the largest cold store. This was supplied by Storax Racking Systems.

    Building modification works were carried out by Chalcroft, whose work included construction of a steel mezzanine with storage area and installation of partition walls in the office area.

    Mechanical and electrical contractor, Penec was responsible for lighting, power and wiring on site, including CCTV access, fire alarm and communication systems. Penec was also responsible for installation of the office HVAC, fit out of the onsite offices, kitchen, canteen and toilet facilities. Penec is a member of the Star Refrigeration group of companies.

    Star Refrigeration is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and aftercare of industrial refrigeration and HVAC systems.


  • Cold Store Dehumidification


    Cold store operators are increasingly looking to minimise operating costs by conveying goods within the distribution chain as quickly and efficiently as possible. Cost effective cooling solutions that maximise plant efficiency and optimise performance are key requirements for the cold storage industry today. Refrigeration plant is a major consumer of electricity for cold store operators and can account for as much as 75% of the site’s usage.

    In an attempt to reduce refrigeration plant running costs, some cold store companies have raised chamber temperatures. A cold store temperature increase of just 1°C can improve refrigeration plant efficiency by 3%. However, it is vital that energy efficiency is achieved without the risk of affecting product quality.

    A recent design development to improve cold store refrigeration plant efficiency has centred on the use of dehumidification systems. Many new cold stores are built without chilled loading bays and with loading dock pods directly into the frozen chamber. No trailer door seal is 100% effective at preventing air ingress into the loading dock pod during loading and unloading. This means that moist external air is drawn into the cold store each time a loading dock pod is in operation. A difference in air density and pressure between the ambient and frozen chamber is the driving force for this air ingress. Water vapour within the air is drawn up to the evaporators and forms ice on the coils. Over time, this reduces plant efficiency, and the evaporator must undergo a defrost to remove the ice.  Each time a cooler defrosts, heat is dissipated into the store, which must then be removed by the refrigeration plant. Reducing the moisture ingress reduces the number of defrosts, which in turn reduces the cooling load of the refrigeration plant. The net result is an increase in efficiency and a reduction in energy usage.

    As warm external air entering the cold store comes into contact with walls, floors, ceilings and other surfaces, it forms ice. Slippery floors and falling ice pose a potential safety hazard for operators within the store. It can also cause fog and wet floors within the loading dock pods. Removing moisture from the warm ambient air before it enters the cold store is key to preventing ice and frost formation on evaporators, walls, floors and ceilings. 

    Dehumidification offers a simple solution to reducing moisture ingress, by capturing moist air from the loading dock pods before it enters the cold store. In simple terms, a dehumidification system comprises a dehumidification unit connected to one or more loading docks by flow and return ductwork. Warm, moist air is extracted from the dock pod close to the outer ambient door and is drawn down ductwork to the dehumidification unit. The air is then drawn across a desiccant wheel within the dehumidification unit. Moisture is absorbed by the wheel and ejected into the atmosphere outside the cold store. Dry air is then returned to the loading dock at a point adjacent to the inner cold store door. Dehumidification systems can be designed for a single air lock or multi loading dock pod facility. Star has installed a single dehumidification unit to serve 24 loading docks, reducing installation costs whilst still providing effective moisture removal.

    Results from dehumidification systems installed by Star Refrigeration over the past five years have indicated a significant reduction in moisture ingress and improvement in plant operating efficiency. By investing in dehumidification systems, one operator with 36 loading docks reduced moisture ingress into their cold store by 6 tonnes of water per day.  Star has also been involved in projects where previously three plant defrosts per day were required due to high levels of moisture ingress. Following the installation of a dehumidification system, this requirement was reduced to one plant defrost per day.

    As well as increasing plant efficiency and saving energy, dehumidification systems play a key role in improving health and safety within cold stores. By controlling moisture within the cold store environment, operators can eliminate safety hazards associated with ice and reduce accident levels. This means that the cold store can operate continuously without the need to stop operations because of slippery floors or for the removal of ice.

    Star has worked in association with moisture control experts Munters to develop state-of-the-art dehumidification systems for the cold storage industry. These systems have been used successfully in many cold store and freezer installations throughout the UK.  

    Star has designed and installed dehumidification systems for major blue chip cold store distribution operators, as well as clients in the food manufacturing sector.

    Despite offering significant benefits, dehumidification systems are often overlooked by cold store operators. The energy requirement for operating a dehumidification unit is minimal when compared to the energy wastage in a cold store where a system is not installed.  Investment costs are far outweighed by the energy savings achieved within a relatively short time scale and by the store remaining operational 24/7/365.”

    Star Refrigeration is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and maintenance of industrial refrigeration systems. The company offers a turnkey package to all users of refrigeration plant.

    Star's technical advisory arm, Star Technical Solutions (STS), operates as an independent consultancy providing advice on refrigeration engineering issues. Star also owns food freezing and chilling equipment specialist Starfrost, as well as mechanical and electrical contractors Penec.


  • Culina Logistics


    Food and drink supply chain specialist Culina Logistics has invested in an environmentally efficient chill store cooling system from Star Refrigeration.

    The award-winning logistics company required a refrigeration plant for a 100,000 sq ft chill store at its new distribution centre in Avonmouth, near Bristol. 

    Culina’s Cabot Park facility handles ambient and chilled food and beverage logistics for leading UK and European manufacturers. 

    Working to a strict time schedule, cooling solutions specialist Star designed and installed a high efficiency refrigeration plant incorporating two of its Azanechillers. These ammonia packaged chillers are complete refrigeration systems, ideally suited to temperature controlled storage as well as food processing, building services and process cooling. 

    Star worked as part of a project team to convert an existing warehouse into a fully operational chill store in just 13 weeks. The services infrastructure was installed and initially connected to a pair of temporary chillers. Meanwhile, Star’s engineering team designed, built and installed the final Azanechiller plant within a total of 18 weeks.

    Star Refrigeration Sales Director Rob Lamb says: “Culina’s Azanechillers were pre-commissioned and performance tested at our manufacturing facility in Glasgow prior to installation on site. This meant the changeover from hired units to Azanechillers was fast and straightforward, thanks to offsite testing.”

    He adds: “As a complete refrigeration package, Azanechiller is easy to install. Only an electrical supply and flow/return pipework is required to provide cooling. This cuts down site installation and commissioning time, whilst also avoiding the need for a plant room.”

    The plant is located externally on a concrete plinth adjacent to the chill store building, which features ten HGV loading docks and four level access doors. Star’s Telstar computerised control system ensures optimum performance, with HMI touch screen interface and broadband connection for offsite remote monitoring.

    The Culina system features two AA750 air cooled Azanechillers with ammonia as primary and glycol as secondary refrigerant. Each Azanechiller has an operating capacity of 450kW to maintain the chill store at +2 to +5°C.

    Suitable for cooling both water and glycol, Azanechiller was developed by Star for environmentally conscious end users. Ammonia is a naturally occurring refrigerant with zero ozone depletion potential and zero global warming potential.

    Azanechiller typically offers a 30% increase in performance compared with standard HFC chillers. Its packaged design and careful component selection result in an ultra low refrigerant charge, with all ammonia contained within the chiller and sited outside the warehouse or production facility.

    Azanechiller features high quality, industrial components to offer unrivalled performance, reliability and low maintenance. Each unit includes two screw compressors, low noise drive motors, Star’s low charge, low pressure receiver and semi-welded PHE evaporator.

    Azanechiller is available as an air cooled or water cooled unit with cooling capacity from 200kW to 850kW. Air cooled Azanechillers feature high efficiency EC condenser fan technology. Water cooled Azanechillers include a welded plate heat exchanger evaporator to minimise refrigerant charge. Both include floating header pressure control, which optimises efficiency at part load conditions and low ambient temperatures.


  • Drammen Neatpump


    UK firm Star Renewable Energy has launched a groundbreaking sustainable heating system which is heating homes and businesses across an entire city in Norway.

    Heat pumps are becoming increasingly popular across Europe as the heat they deliver far exceeds the energy they consume. District heating sees heat generated in a centralised location distributed for residential and commercial heating.

    By 2009, the Norwegian city of Drammen's population had grown to such a degree that its existing district heating system could not cope. While researching ways to expand its capacity, the city's heating company Drammen Fjernvarme, led by Jon Ivar Bakk, discovered the water temperature in the fjord was ideal for heat pumps.

    Star Renewable Energy stood out amongst other bidders during the tender process, despite having no prior experience of water source heat pumps. The Glasgow based company is best known for providing refrigeration systems to some of the UK's biggest retailers, including Tesco and ASDA. As Director Dave Pearson says, "We were the new kids on the block, but we've always had a reputation for pushing boundaries."

    District heat pumps already exist in Scandinavia and across Eastern and Central Europe, providing higher efficiencies than traditional localised boilers. However, many of these first generation systems rely on hydrofluorocarbon (HFC) refrigerants, which are thousands of times more potent as global warming gases than carbon dioxide when emitted to the atmosphere. HFCs are currently being phased out by the EU under the Montreal Protocol.

    Hence, Star's selling point was simple - while other companies were using HFCs as the coolant, Star proposed using ammonia, a naturally occurring refrigerant with zero ozone depletion potential. Ammonia has never been used in a high temperature heat pump allocation of this type. Electricity for the Drammen system is provided by hydropower, making the Neatpump's carbon emissions virtually zero.

    Star's Neatpump is a renewable energy heat pump that extracts heat from seawater, air or any industrial waste stream, such as air conditioning or large scale cooling processes. This waste heat is captured, compressed, boosted and recycled to provide hot water at up to 90°C for heating buildings on a massive scale. The project was completed in January 2011, and has since delivered over 15MW of heat for the Drammen community of 60,000 people. It is the world's largest district-wide natural heat pump system.

    And if it works in Drammen, it can work anywhere where there is a constant supply of water, standing or flowing.

    In the UK, Star is already working with local housing associations in Glasgow, and is also speaking with a dozen city councils, including Newcastle, Durham, Manchester and Stoke. It is also working on projects in Zurich and the south of France, and bidding for a system in Belgrade. The potential is huge - for example, the Thames could generate 1.25GW of capacity, enough to heat 500,000 homes.

    Dave Pearson says: "Systems such as the Neatpump could literally revolutionise the way we heat factories, hospitals, office buildings, data centres, even entire communities across the globe. The technology behind it is so advanced that it can even be configured to deliver district wide air conditioning, with waste heat providing the energy to drive desalination processes for producing fresh drinking water."

    He adds; "At present, a shocking amount of heat generated through cooling processes worldwide is simply discarded as waste to the atmosphere. Organisations could now be recycling waste heat from their process, air conditioning and IT cooling systems and boosting it for use in their own and neighbouring buildings."

    Star's heat pumps have been providing Drammen district heating with 85% of the hot water needed to heat the city. "We are very happy with it," says Mr Bakk. Having already paid for itself, and with annual savings of around 2m a year and 1.5m tonnes of carbon - the equivalent of taking more than 300,000 cars off the road for a year - it's not hard to see why.

    Star has invested heavily in zero carbon technology and continues to develop new products to provide energy conscious systems for the benefit of customers and the environment.

    Click here to view the full related article on the BBC website.

    Star focuses on the design, manufacture, installation, commissioning and aftercare of industrial refrigeration and HVAC (heating, ventilation and air conditioning) systems.

    For more information, phone Star Refrigeration on 0141 638 7916, email star@star-ref.co.uk or visit www.star-ref.co.uk.  Star Refrigeration, Thornliebank Industrial Estate, Glasgow G46 8JW.


  • Fraserburgh Fish Market


    Star Refrigeration has completed a turnkey building refurbishment and cooling system installation project at the famous Fraserburgh Fish Market in Scotland.

    In a contract valued at over £1million, Star designed and installed a flexible and energy efficient cooling system for two market buildings. As principal contractor on the refurbishment project, Star also took responsibility for coordinating all associated building works including insulation, lighting and electrics, plumbing, fire alarms and security systems.

    Market operators the Fraserburgh Harbour Commissioners required a new refrigeration system for temperature control in two market buildings. One building was already insulated and partially temperature controlled, but the system needed to be upgraded to meet current standards. The second building required new insulation and refrigeration equipment.

    Both quayside buildings were being used for the intake and distribution of seafood direct from fishing vessels. Star had to carefully phase construction work to allow the market to continue to operate, with the landing and sale of white fish and shellfish to the trade.

    Star designed a cooling system with in-built flexibility to accommodate varying trawler landings at Fraserburgh. The plant features three refrigeration units in each building. Each unit operates independently, providing cooling for a different building section. This provides the flexibility to control building temperature exactly as required.

    Each building is approximately 4,500m³ and has an operating temperature requirement of zero to two degrees centigrade. The plant capacity of 190kW is provided by compressor receiver units linked to very low air velocity evaporators within the market buildings and roof mounted air-cooled condensers.

    Additional building works managed by Star included the reinforcement of existing steelwork to accommodate the weight of coolers and insulated panels. Star’s Aberdeen branch installed the refrigeration system and pipework and also coordinated insulation works, including new ‘up and over’ quayside and roadside doors.

    Commenting on the project, Star Refrigeration Sales Director Rob Lamb says: “The Fraserburgh Fish Market project demonstrates that Star is a total solutions provider. In our role as principal contractor we worked closely with Harbour Board staff, who assisted us greatly to ensure the facility remained operational throughout each planned construction phase.”

    Star Refrigeration is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and maintenance of industrial refrigeration systems. The company offers a turnkey package to all users of refrigeration plant.

    Star's technical advisory arm, Star Technical Solutions (STS), operates as an independent consultancy providing advice on refrigeration engineering issues. Star also owns food freezing and chilling equipment specialist Starfrost, as well as mechanical and electrical contractors Penec.

    Star has an unrivalled track record of high quality products and services across a broad range of industry sectors including food production, cold storage and distribution, brewing and distilling, building services, leisure, pharmaceutical and petrochemical.

    Established in Glasgow in 1970, Star has over 250 employees nationwide and provides fast response 24-hour technical support from a network of nine branches to customers throughout the UK.


  • Fujifilm


    Star Refrigeration has supplied an energy efficient process cooling plant for FUJIFILM Imaging Colorants, a world leader in the development and manufacture of inkjet colorants.

    FUJIFILM Imaging Colorants (FFIC) develops and supplies high performance colorants for the global digital printing market. The FFIC site at Grangemouth, Scotland, manufactures colorants for inkjet and toner cartridges used in printers and copiers throughout the world.

    In a contract valued at over a quarter of a million pounds, Star designed and installed an environmentally conscious process cooling plant for colorant manufacture at the Grangemouth site. The low temperature ammonia water-cooled chiller provides energy efficient operation at varying process heat loads.

    Star’s refrigeration plant supplies rapid cooling to reactor jackets on a number of new process reactors. This plays a key role in providing accurate and responsive temperature control of key processing steps – helping to ensure the materials produced satisfy exacting quality standards.

    Operating on natural ammonia refrigerant, the highly efficient plant cools 156m³/hr of ethylene glycol/water solution from -17°C to -20°C. It is designed to meet a peak process reactor heat load of 430kW for less than one hour, a sustained operating load of 350kW and a normal operating duty of 20-160kW.

    Three screw compressors enable the chiller to provide excellent energy efficiency at part load.

    The plant also features low refrigerant charge plate heat exchangers, a horizontal surge drum and two fixed speed primary glycol pumps.

    Further energy savings are provided by variable speed drive motors on two secondary glycol pumps. This enables flow to be varied according to cooling demand. Star’s patented TELSTAR computerised control system ensures optimum performance and efficiency. This includes floating suction and discharge pressure control and optimised compressor sequencing.

    The plant is located externally, adjacent to the main manufacturing building. The compressors are housed in a low noise acoustic enclosure. This features access doors, an ammonia gas detection system and extract ventilation fans.

    Commenting on the project, Zac Meadows, Chemical Engineering Group Leader for FULIFILM, says: “Star worked closely with us to design an economically competitive solution which satisfied our demanding production requirements and environmental needs. We look forward to the plant continuing to deliver reliable and efficient cooling across the range of colorant production processes to be operated in this flagship new facility."

    Star is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and maintenance of industrial refrigeration systems.


  • GSK, Brentford


    Star Refrigeration has installed a high efficiency Indigochiller cooling system for specialist air conditioning at GlaxoSmithKline’s global head office.

    GlaxoSmithKline (GSK) is one of the world’s leading research-based pharmaceutical and healthcare companies. GSK House in Brentford, Middlesex, is the company’s prestigious global headquarters.

    Star has designed and installed an environmentally conscious, low carbon footprint chiller solution for GSK House. Star’s compact, packaged Indigochiller is serving a new IT data centre at the Brentford site.

    The data centre operates around the clock with a continuously high base heat load generated by a mass of computer servers. Star’s Indigochiller was chosen following a competitive tender process, which highlighted a significant saving in energy, carbon emissions and lifecycle running costs.

    GSK’s water-cooled Indigochiller has a total capacity of 1,000kW. The system employs water from the local canal to cool the condenser and maximize efficiency. Located externally, the compact packaged chiller delivers cooling to the data centre building via chilled water pipework.

    Star’s Sales Director Rob Lamb says; “As a reliable, high efficiency system, Indigochiller met GSK’s carbon reduction requirements and exceeded expectations with its low life cycle running costs.”

    He adds: “Indigochiller offers the ultimate cooling solution to forward-thinking operators. It is designed for unrivalled performance in process cooling and air conditioning.”

    Star worked in conjunction with the facilities management company for GSK House. The contract was one of a number of cooling projects undertaken by Star for GSK in 2008, including sites at Ware, Barnard Castle and Dungarven.

    Star’s Indigochiller is a low charge, high performance chiller for medium to large scale air conditioning and process cooling operations. Available as an air-cooled or water-cooled unit, Indigochiller has capacity options ranging from 240kW to 1,500kW.

    Indigochiller is highly energy efficient. Star’s research shows that it uses only 60% of the energy required by a standard chiller operating on typical load and ambient profiles. This offers end users a significant saving in energy and running costs.

    Indigochiller is engineered to have minimal effect on the global environment. Developed in direct response to F-Gas regulations, the design aims to eliminate refrigerant leakage. It features bellows seal valves, sealed expansion valves and welded steel pipework.

    Indigochiller features the revolutionary Turbocor centrifugal compressor. It operates on low noise electromagnetic bearings and uses the synthetic refrigerant R134a. The unique oil-free system offers reliable, hassle free performance and requires minimal installation, servicing and maintenance. A robust PLC control system allows the user to monitor running conditions and optimise efficiency.

    Indigochiller is part of Star’s range of environmentally conscious cooling and heating solutions for the building services and process cooling markets. Other products include the low charge ammonia packaged Azanechiller, Freechiller – the ‘free cooling’ solution for IT data centres and Envitherm, providing cooling and heating for hotels, offices and factories.

    Star Refrigeration is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and maintenance of industrial refrigeration systems.


  • Huntsman Petrochemical


    Huntsman European Petrochemicals is a major manufacturer of bulk commodity chemicals, and produce around three million tonnes of petrochemicals a year from their well-established manufacturing plants based in Teesside in the North East of England.

    Huntsman had a requirement to increase their ethylene liquefaction throughput to meet market demands and so had a need for increased refrigeration capacity. They wanted a customised refrigeration plant to serve an ethylene heat exchanger, using propylene (R1270) as the refrigerant.

    Star Refrigeration designed the plant to cool high pressure ethylene before shipment. The ethylene is cooled using propylene refrigerant on the shell side of the HP ethylene heat exchanger. The propylene refrigeration system was rated to provide approximately 2000kW of capacity when working with a design ambient wet bulb of +19°C.

    The refrigeration system included an API 619 compliant screw compressor package with lube system and 3.3Kv high voltage EEx”N” drive motor, evaporative condensers, a propylene liquid receiver and a refrigerant economiser connected to the HP ethylene chiller heat exchanger and ethylene knock-out vessel.

    Star Refrigeration worked closely with the Huntsman and FWEL project team to produce a "project specific" refrigeration plant designed for continuous operation and reliability. There were certain specific project requirements requested by the team, including:

    •Plant operational reliability (24/7)
    •Designed to PED requirements
    •All vessels/pipe work in LT50 carbon steel
    •Compressor secondary ”dry gas seal” for added protection and notification of shaft seal wear
    •Automatic oil recovery
    •Vibration monitoring system
    •Use site specified instrumentation
    •Project specific documentation

    Star Refrigeration is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and maintenance of industrial refrigeration systems. The company offers a turnkey package to all users of refrigeration plant.

    Star's technical advisory arm, Star Technical Solutions (STS), operates as an independent consultancy providing advice on refrigeration engineering issues. Star also owns food freezing and chilling equipment specialist Starfrost, as well as mechanical and electrical contractors Penec.


  • Huntsman Pigments & Additives


    Since 1970, Huntsman has been a global leader in the manufacturing and marketing of differentiated chemicals. Huntsman is a leading supplier of Titanium Dioxide pigment, which is used to add brightness, whiteness and opacity to thousands of consumer products manufactured across the globe.

    The refrigeration plant at Huntsman Pigments and Additives’ factory at Greatham, UK needed updating due to the phase out of R22. Star Refrigeration first looked at the replacement project in 2010. After proposing an innovative, cost-effective solution that worked with the R22 phase out deadline, Huntsman appointed Star to deliver the replacement.

    David Laws, Star’s Sales Manager – Process Industries, said: “We have been working closely with the Huntsman engineering team for a number of years prior to this replacement project and offered a number of alternative schemes before the direct system was accepted.”

    Star carried out a GAP analysis of the project specifications pre-contract to ensure Huntsman’s requirements were satisfied. The process heat exchanger design was paramount to ensure that it matched the site installation configuration and the ammonia refrigeration packages were mounted with an explosion proof plant room.

    Star proposed a cost effective project plan with the lowest life cycle costs. This involved the use of a zero carbon ammonia system located inside a purpose built plant room.

    All equipment is suitable for Hazardous Area Zone 2 11A T1 regulations to meet Huntsman site safety and compliance standards. Star also allowed for easy integration of the entire refrigeration plant with their existing site control system.

    One of the key features of the state-of-the-art direct refrigeration system was the high integrity construction of the process heat exchangers and materials used to prevent any cross contamination between the ammonia and process gas. The premium quality equipment also increases plant reliability, longevity and minimises the need for ongoing maintenance and repairs, as all components are built to industrial quality standards.

    Star’s approach to the project and the efficiency with which works were carried out during the whole process, from the specification stage, to design, manufacture, installation and commissioning, was praised, notably as the final phase was undertaken with minimal disruption to Huntsman’s usual business operations.

    Star rose to the challenge and came up with an innovative solution that complies with regulations, reduces carbon footprint, boosts plant efficiency and ultimately increases business’s bottom line.

    Over the past few years, the leading industrial refrigeration company has been helping world-class organisations and small businesses across the nation prepare for the phase out. This extensive experience made Star a trustworthy ally for any business on the lookout for a reliable R22 phase out supplier.

    This was not the first project that Star had executed for Huntsman Pigments and Additives in Teesside, with the company previously installing an NH3 refrigeration/chilling system in 2002. This indirect system used brine cooled by an ammonia refrigeration plant. The brine was then circulated to cool the product.

    Star has also been providing Huntsman with onsite maintenance since 2001.


  • Huntsman Tioxide


    The Huntsman Corporation is one of the world’s largest privately owned American companies with interests in petrochemicals, chemicals, aromatics and polyurethanes. Part of the Huntsman organisation is the Tioxide division, producing titanium dioxide pigments used primarily in the production of paints and plastics. Titanium dioxide is the most commonly used pigment in the world, giving end products their brilliant whiteness, opacity and protection. Huntsman Tioxide have manufacturing plants operating throughout the world and, in particular, UK plants in Teesside and Grimsby.

    Star supplied a custom-built refrigeration package as part of Tioxide’s £50m extension to the production plant at the Greatham site in Teesside. Known as the “ICON 2 Project” the plant extension is to increase production of titanium dioxide to 100,000 tonnes/year at the Greatham site.

    Huntsman Tioxide's requirements were simple - they required an environmentally friendly, energy efficient and reliable refrigeration plant designed to be operated continuously to meet the demands of their chemical production facility.

    The refrigeration plant is used to serve their titanium dioxide spiral heat exchanger cooling requirements using a calcium chloride brine solution down to -23°C. The refrigeration plant utilises ammonia as the natural choice of refrigerant, and is designed to provide 332kW refrigeration capacity to allow for system hydraulic gains when operating at the design conditions, with cooling water available at 30°C.

    The package was split into two sections with the compressor and condenser section located within a plant room while the evaporator package is located on the plant room roof section, local to the process heat exchangers and pipe work. The complete system is suitable for operation within a hazardous zone 2 IIB T3 area.

    The compressor package consists of an ammonia refrigeration screw compressor package with lube system and oil cooler, a 200kW high voltage TEFC IP55 2 pole EEx “N” motor suitable for 3.3KV, water-cooled shell and tube condenser and liquid receiver with all pre-piped with unit wiring terminating at package junction boxes.

    Star also provided the plant room ventilation and ammonia gas detection system to EN 378 September 2000 (Refrigerating Systems & Heat Pumps Safety & Environmental requirements).

    A remote mounted Siemens TI 545 PLC was provided to control all operating and safety functions of the plant. Hard-wired Zone 2 safety cut-outs/controls were also provided as a site safety requirement.

    Interconnecting brine and ammonia pipework was site installed after the packages were positioned.

    Star Refrigeration worked closely with the Huntsman Tioxide and FWEL Project team to produce a “project specific” refrigeration plant designed for continuous operation and reliability. There were certain specific project requirements required by the team, including:

    •Plant operational reliability (24/7)
    •Dual oil pumps with automatic changeover
    •Dual oil filters
    •High corrosion allowance on evaporator (3mm)
    •Designed to PED requirements
    •All vessels/pipework in LT50 carbon steel
    •Flange connections to allow easy removal of evaporator from separator on package
    •In-built standby components

    •Capital spares including a spare bare shaft compressor, evaporator, motor and condenser
    •Ammonia gas detection/ventilation requirement to the plant room
    •Automatic oil recovery
    •First year maintenance included
    •Use site specified instrumentation
    •Hazop study attendance

    With the packages built in a modular construction to meet site dimensional constraints, the site installation costs were kept to a minimum.

    The packages were delivered on time as any delay beyond the agreed date would have prevented site services from completing the installation in and around the plant room. The site program was another important factor and one of the reasons why Star was chosen for this key project.

    Star Refrigeration is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and maintenance of industrial refrigeration systems. The company offers a turnkey package to all users of refrigeration plant.

    Star's technical advisory arm, Star Technical Solutions (STS), operates as an independent consultancy providing advice on refrigeration engineering issues. Star also owns food freezing and chilling equipment specialist Starfrost, as well as mechanical and electrical contractors Penec.


  • Kuehne + Nagel, Wellingborough


    Star Refrigeration completed a £1.4M cold and chill store project for global logistics provider Kuehne + Nagel.

    Star designed and installed a high efficiency ammonia refrigeration plant at one of the company’s national distribution centres in Wellingborough, Northamptonshire.

    The distribution centre carries out, among other operations, food and beverage logistics for leading UK food service operators. Kuehne + Nagel undertakes supply chain management for the distribution of frozen, chilled and ambient products via the UK road network.

    Working to a strict time schedule and within the space constraints of an existing warehouse building, Star delivered a turnkey cooling solution for Kuehne + Nagel. Operating on natural ammonia refrigerant, Star’s compact dual purpose system supplies cooling to new cold and chill store areas, with 17 vehicle loading docks.

    Star Refrigeration Sales Director Rob Lamb says: “As the UK’s largest independent industrial refrigeration specialist, Star was able to deliver on time within a tight 23-week installation programme. Our previous experience in the cold storage and distribution sector with the project’s main contractor Fitzpatricks also enabled us to meet the target delivery date.”

    Star’s refrigeration plant has a cooling capacity of 500kW for the cold store area, which operates at minus 25 degrees centigrade. The chill store area operates at a temperature of plus two degrees centigrade, maintained by 650kW of cooling capacity.

    The system comprises a two stage pump circulation ammonia plant, with hot gas defrost to the evaporators. As an environmentally conscious natural refrigerant with zero global warming and ozone depletion potential, ammonia overcomes concerns over HFCs.

    The compact and highly efficient system features two low and two high stage compressors, a high stage surge drum and two evaporative condensers. The innovative design offers Kuehne + Nagel running cost savings of £50K per annum compared to a conventional pump system.

    The low maintenance plant features Star’s TELSTAR computerised control system to monitor running conditions and optimise efficiency. The system has remote access via a built-in modem, with a direct link to Star’s 24/7 call out facility.

    Star Refrigeration is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and aftercare of industrial refrigeration and HVAC systems.

    Star provides total cooling solutions for refrigeration, air conditioning and process cooling. The company offers a turnkey supply and support package to all users of cooling equipment. Star continues to invest in the development of new products to provide energy conscious cooling systems for the benefit of customers and the environment.


  • Kuehne+Nagel, Brinklow


    Global logistics specialist Kuehne+Nagel has invested in another environmentally efficient chill store cooling system from Star Refrigeration.

    Kuehne+Nagel required a new refrigeration plant as part of an extension to a chilled storage facility at its Brinklow site, near Milton Keynes. The distribution centre handles food and drink logistics for one of the UK’s leading supermarket chains.

    Following the success of previous cooling projects at other UK sites, Kuehne+Nagel approached Star to design and build an environmentally conscious, robust and reliable refrigeration plant for the new chill store. Star worked in partnership with the main building contractor for the expansion project to deliver a turnkey cooling solution for Kuehne+Nagel.

    A world leader in cooling and heating system innovation, Star designed and built a high efficiency refrigeration plant incorporating two of its Azanechillers. The compact ammonia packaged chillers supply cooling to the new multi temperature chill store, with a 56,000 sq ft chamber for chilled goods and a 45,000 sq ft produce chamber for fresh fruit and vegetables. Each temperature controlled chamber has a throughput of around 30 tonnes per hour.

    Star combined the new Azanechiller system with an existing refrigeration plant to give Kuehne+Nagel the flexibility to operate the two chambers within the new chill store at different temperatures. The existing plant allows the fresh produce chamber to operate at +9°C, with the new Azanechiller system enabling an operating temperature of +2°C in the chilled goods chamber.

    Working to a strict time schedule, Star pre-commissioned and performance tested the Azanechiller system at its Glasgow manufacturing facility to reduce installation time on site at Brinklow. Group company Star M&E Solutions was awarded the role of mechanical and electrical contractor, including main low voltage panel works, lighting for the two chambers, fire alarm and alterations to the ventilation system.

    The Kuehne+Nagel system features two air-cooled Azanechillers with ammonia as primary and glycol as secondary refrigerant. Each unit has a cooling capacity of 400kW and features a low ammonia charge of less than 0.45kg/kW. The Azanechillers are located externally, mounted on concrete plinths adjacent to the existing plant room. As an environmentally conscious natural refrigerant with zero global warming and ozone depletion potential, ammonia overcomes concerns over HFCs. Waste heat from the Azanechillers is recovered for defrosting the evaporators in the new and existing refrigeration plant.

    Azanechiller is a complete refrigeration package, ideally suited to temperature controlled storage as well as food processing, building services and process cooling. Only an electrical supply and flow/return pipework is required to provide cooling. This reduces site installation and commissioning time, whilst also avoiding the need for a plant room.

    Suitable for cooling both water and glycol, Azanechiller was developed by Star for environmentally conscious end users. Azanechiller typically offers a 30% increase in performance compared with standard HFC chillers. Its packaged design and careful component selection results in an ultra low refrigerant charge, with all ammonia contained within the chiller and sited outside the warehouse or production facility.

    Azanechiller features high quality, industrial components to offer unrivalled performance, reliability and low maintenance. Each unit includes two screw compressors, low noise drive motors, Star’s low charge low pressure receiver and semi-welded PHE evaporator. Star’s Telstar computerised control system ensures optimum performance, with HMI touch screen interface and optional broadband connection for offsite remote monitoring.

    Azanechiller is available as an air-cooled or water-cooled unit with cooling capacity from 200kW to 850kW. Air-cooled Azanechillers feature high efficiency EC condenser fan technology. Water-cooled Azanechillers include a welded plate heat exchanger condenser to minimise refrigerant charge. Both include floating header pressure control, which optimises efficiency at part load conditions and low ambient temperatures.


  • Lammas Leisure Centre, Notts


    Star Refrigeration has designed and installed an ice rink cooling system at a brand new £16million leisure centre in Nottinghamshire.

    Cooling solutions specialist Star is the market leader in ice systems for the UK leisure industry. Star’s work at the new facility in Sutton-in-Ashfield is the latest in a long line of ice-based leisure projects spanning nearly 40 years.

    The Lammas Leisure Centre is being provided by Ashfield District Council. The council has invested £16million in the community facility, which includes an ice skating rink, swimming pools, sports hall, indoor bowling and fitness suite.

    Star worked in partnership with the project’s main building contractor. In a contract valued at around £400,000, Star supplied the refrigeration plant, pump system and specially designed ice rink flooring.

    Rob Lamb, Sales Director of Star Refrigeration says: “Overall, the council was looking for an energy efficient refrigeration plant to minimise its carbon footprint in line with current environmental policy. Star is dedicated to developing environmentally conscious cooling solutions. To date we have designed refrigeration systems for over 80 per cent of the UK’s ice rinks.”

    Star’s ice system for the Lammas Leisure Centre provides optimum coverage across the 32 x 18 metre ice rink. The refrigeration plant is designed to be reliable, efficient and easily maintained.

    The system comprises a low charge ammonia refrigeration plant. This chills glycol to minus 10 degrees centigrade, prior to being pumped through a network of cooling pipes embedded in the ice rink floor.

    Star’s ice system ensures that the temperature, quality and hardness of the ice remains even and constant. The refrigeration plant has a total a cooling capacity of 195kW. It features dual compressors, a plate and shell heat exchanger, external condensers and an ammonia gas detection system.

    The environmentally conscious, low energy cooling solution also incorporates an innovative heat recovery system. Waste heat from the ice rink plant is captured and recycled to heat water for the two swimming pools on site.

    The Lammas Leisure Centre project is another example of Star’s expertise in providing world class ice systems for sport and recreation. Star has nearly four decades of experience in ice rink design and installation. Star has also designed and built a range of ice-climbing walls and ice-based visitor attractions for leisure industry clients.

    Star Refrigeration is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and aftercare of industrial refrigeration and HVAC systems.

    Star provides total cooling solutions for refrigeration, air conditioning and process cooling. The company offers a turnkey supply and support package to all users of cooling equipment. Star continues to invest in the development of new products to provide energy conscious cooling systems for the benefit of customers and the
    environment.


  • Lundbeck Pharmaceuticals


    Danish owned Lundbeck Pharmaceuticals has recently expanded its facilities at Seal Sands to increase its production capacity of bulk pharmaceuticals.

    Foster Wheeler provided the engineering, procurement, construction management and validation/commissioning for the project utilising their project management expertise from their Reading and Teesside offices. The highly prestigious multi-million pound new bulk pharmaceutical production plant, has been built on Lundbeck’s site at Seal Sands in Teesside to provide the manufacturing capabilities of Lundbeck’s new anti-depressant drug - Cipralex.

    The process requires that the temperatures must be controlled continuously to acceptable levels. As part of the joint alliance Foster Wheeler’s project management team brought together specialist contractors with expertise in various aspects of the project and capable of meeting the fast track project timescale. These included civil design of the building, on site mechanical and electrical installation services and cooling equipment used to maintain the required process temperatures expected with exothermic chemical reactions.

    Star Refrigeration were chosen by the project management team to meet the demands of the specialist refrigeration requirements and also to meet the requirements of Lundbeck’s project cost and rapid site construction program. This single source responsibility for the refrigeration equipment included custom-built refrigeration packages, tank/pump skids and starter/control panels to minimise site construction and testing.

    During the process the product temperature requirements vary widely. Therminol D12, supplied by Solutia was chosen as the thermal heat transfer fluid due to its highly stable combined heating and cooling properties and capability of operating at temperatures between –85°C and +260°C.

    Lundbeck’s design brief for the refrigeration plant was simple. The refrigeration plant must be extremely reliable, environmentally friendly, with low noise emission and have a state of the art control system available to control the equipment used as part of a modern pharmaceutical production facility. However the method of achieving these requirements was open to discussion.

    Star’s approach was to work closely with the FWEL project design team at the beginning of the contract to develop an understanding of the process heat load and temperature profile requirements addressing other specific process needs to provide a refrigeration system meeting all of Lundbeck’s needs. This showed that two refrigeration systems are required. A +5°C circuit is designated as the low temperature heat transfer fluid (LT HTF) Refrigeration Package and a –25°C circuit designated as the low-low temperature heat transfer fluid (LLT HTF) Refrigeration Package. To meet the current trends in Environmental and HSE requirements each package was designed to operate as an air-cooled Ammonia system.

    The low temperature heat transfer fluid system capacity is 1400kW. It is arranged to cool 400m3/hr of Therminol D12 from +13.5°C to a final temperature of +5°C. The custom built package included two Howden screw compressors and 185kW drive motors within an acoustic enclosure, a surge drum and two Vahterus plate and shell evaporators operating with ammonia as the refrigerant. The plate and shell evaporators were selected to meet the requirement of low refrigerant charge and the client’s familiarity of use on other parts of the process. The refrigeration package is connected to the remote low noise air-cooled condensers. Compressor oil cooling is achieved using glycol circulated through a separate remote dry air cooler.

    The low-low temperature heat transfer fluid system capacity is 220kW arranged to cool 50m3/hr of Therminol D12 from –14.6°C to a final temperature of –25°C. This system package included a single Howden screw compressor with 185kW drive motor within an acoustic enclosure, surge drum and Vahterus plate and shell evaporator operating with Ammonia refrigerant. Similar to the +5C plant the refrigeration package was connected to a remote low noise air-cooled condenser that has an in built oil cooling circuit therefore minimising the required site plot area.

    In addition to the refrigeration packages Star’s responsibility includes the supply of a custom built tank and pumps skid to circulate the Therminol between the process reactor loop and tank and the refrigeration package evaporators. Primary and secondary Therminol pumps with ANSI 300 connections were supplied from the USA.

    The 12m3 tank in the +5°C circuit provides an adequate thermal buffer capacity to prevent short cycling of the compressors and is also a means to drain Therminol from process heat exchangers and vessels for local maintenance requirements. To accommodate any changes to the Therminol volume in the system due to design ambient changes, the tank incorporates an expansion volume area. It is an important requirement to maintain moisture free conditions in the Therminol circuit so a nitrogen blanket is provided above the working level of Therminol within the tank. The tank pressure is regulated with nitrogen being introduced on fall of tank pressure (2 Bar (g)) and discharged on increase in tank pressure (2.2Bar (g)).

    The design of standby in the –25°C system is somewhat different. Lundbeck required the –25°C plant to meet the normal operation of the process with a single refrigeration system and also handle an emergency condition of maintaining the reaction temperatures within stringent acceptable limits should the refrigeration package stop for any unplanned reason. Both FWEL and Star considered this requirement and decided to use a “Latent Heat Storage System”. “This was an interesting design solution rather than installing a complete spare plant” commented David Laws, Star Refrigeration’s Sales Manager for Process Industries.

    The system uses a Therminol to Glycol plate & shell heat exchanger connected to a 7m3 Storage Tank containing “Phase Change Material” to allow thermal energy to be stored. The PCM nodules are high-density polyethylene moulded spheres containing a salt solution designed to change phase at a temperature of –18.3°C with a latent heat of 47.5kWh/m3 over 1 hour.

    As Therminol is not compatible with the PCM nodule material, a separate loop containing 50% w/w Ethylene Glycol solution was used. In normal operation the Therminol is cooled by the refrigeration package to the design temperature. A Therminol/Glycol Plate & Shell heat exchanger is connected to the system so that the cold Therminol cools the glycol loop and subsequently freezes the PCM nodules in the Latent Heat Storage Tank. Should the refrigeration plant stop for any unplanned reason, the returning warm Therminol passes through the Therminol/Glycol heat exchanger, and will continue to be chilled by the cooling effect stored in the PCM nodules.

    The complete Tank/Pump skid includes not only the Latent Heat Storage Tank but also a 2m3 Therminol expansion tank and process pumps. The expansion tank is supplied with the nitrogen blanket and regulating valves. As the plant is operating at low temperatures it was decided to provide a Therminol Drier into the package. The drier takes a constant supply of Therminol from the circuit and passes it across the desiccant filter material removing any moisture that may be present.

    Star provided starter/control panels for both systems including ammonia gas detection systems for the screw compressor packages. The acoustic enclosures were fitted with Zone 1 ventilation fans, lighting and ammonia gas detectors.

    To control the +5°C and –25°C refrigeration systems Star used their TELSTAR Mark 3 PLC Control system linked to the control junction boxes on each package. Although the TELSTAR Mark 3 system is a stand-alone system it is also linked to the clients DCS control system for remote alarm connected via a modem to the local Star branch office providing remote monitoring of the plant and has a facility to reset the plant remotely should the system report a minor fault. Indication that the plant is operating beyond the design set points minimises unnecessary plant stoppages prior to the service engineer attending site to reset the plant.

    This facility not only provides Lundbeck with the means to meet their current production needs, but with its modular design and innovative use of thermal storage it will also be extremely easy and cost-effective to upgrade for future expansion when that is required.

    Star focuses on the design, manufacture, installation, commissioning and maintenance of industrial refrigeration systems. The company offers a turnkey package to all users of refrigeration plant.

    Star's technical advisory arm, Star Technical Solutions (STS), operates as an independent consultancy providing advice on refrigeration engineering issues. Star also owns food freezing and chilling equipment specialist Starfrost, as well as mechanical and electrical contractors Penec.

    Star has an unrivalled track record of high quality products and services across a broad range of industry sectors including food production, cold storage and distribution, brewing and distilling, building services, leisure, pharmaceutical and petrochemical.

    Established in Glasgow in 1970, Star has over 260 employees nationwide and provides fast response 24-hour technical support from a network of nine branches to customers throughout the UK.


  • Macrae Ammonia Plant


    Star Refrigeration has completed a major £1.3M cooling project in partnership with leading seafood processing firm Macrae Edinburgh, at a brand new facility in Livingston.

    Macrae Edinburgh is the long-standing partner of supermarket chain Waitrose, supplying a wide range of ready-to-eat seafood. The company is part of the Macrae Food Group, one of the UK’s largest seafood processing firms and a subsidiary of Young’s Seafood Limited.

    Cooling solutions specialist Star partnered Macrae Edinburgh on the design and installation of a refrigeration system at its new seafood processing plant in Livingston. The state-of-the-art facility is designed for processing smoked salmon, mackerel and shellfish for Waitrose.

    Star worked hand-in-hand with Macrae Edinburgh throughout the project. After advising on various technical options and plant design, Star and Macrae developed a cooling solution that offered optimum performance and value.

    Star’s partnering approach included agreeing a guaranteed maximum price and ensuring the project was delivered on budget. Star’s refrigeration plant is energy efficient and environmentally conscious.

    It provides cooling for chilling and freezing equipment, as well as various cold storage and seafood processing areas on site.

    The chilled glycol system operates with ammonia as the primary refrigerant. The plant offers numerous benefits including low maintenance and reduced energy consumption, as well as the environmental advantages associated with ammonia as a natural refrigerant.

    Cooling to the factory is provided at two temperature levels. Low temperature (-37°C) ammonia is circulated to a spiral freezer and three blast freezers. Propylene glycol is pumped to air coolers serving blast chillers, holding areas and air handling units for working areas.

    The refrigeration plant’s design incorporates a variety of energy saving features designed to minimise running costs. These include floating head pressure control, heat recovery off the high stage compressor discharge for water heating, hot gas defrosting, optimised compressor sequencing control and an automatic air purger.

    The refrigeration plant features a computerised control system for monitoring and optimising operating conditions. Star-owned electrical contractors Penec provided the refrigeration wiring and starter/control panels for the project.

    The project forms the latest in a long line of work completed by Star for the Macrae Food Group, spanning four decades. In the last four years Star has partnered Macrae on three major refrigeration plant installations at its Fraserburgh site.

    Star Refrigeration is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and maintenance of industrial refrigeration systems. The company offers a turnkey package to all users of refrigeration plant.


  • New Britain Oils Limited


    Star Refrigeration successfully completed a Total Solutions project for sustainable palm oil producer New Britain Oils Ltd (NBOL). The Liverpool based company is part of New Britain Palm Oil Ltd (NBPOL), the largest palm oil producer in Papua New Guinea and The Solomon Islands. NBOL only refines sustainable palm oil that has been independently certified against the standard defined by The Roundtable for Sustainable Palm Oil. Star Refrigeration’s ethos of using green sustainable refrigerants, coupled with high efficiency cooling equipment complements the vision and policies of NBOL.

    As part of their palm oil refining expansion programme Star worked alongside the NBOL project team and assisted in the development of the palm oil cooling system. Star designed, project managed, installed and commissioned an ammonia refrigeration plant to serve the clients new scraped surface heat exchangers.

    The refrigeration system was designed for high energy efficiency, low carbon footprint, longevity and reliability. Key design requirements involved minimising both noise and vibration.

    The major equipment consisted of a pair of inverter driven reciprocating compressors, a combined surge vessel/high pressure receiver package unit, an evaporative condenser and Star’s refrigeration management system.

    High efficiency was accomplished by using Star’s very own reciprocating inverter drive technology in conjunction with high efficiency drive motors. The compressor control philosophy further enhanced system energy efficiency characteristics. Heat rejection was achieved using an evaporative condenser complete with Star’s Aether condenser fan control system which reduces the annual operating costs by matching fan speed to ambient conditions and cooling load.

    Star achieved minimal noise and vibration through careful design of the compressor plinth. Pipework was designed and installed to prevent the transmission of the vibration through the brackets into the building structure.

    Rapid variation in the production process load meant that the system needed to respond quickly to an instantaneous reduced or increased cooling requirement whilst also maintaining stable temperatures. Star’s compressor control system varies compressor speed to match cooling capacity to the production heat loads. This ensures optimum system efficiency, high reliability and most importantly, continuous production.

    Star’s in-depth knowledge of chilling food products with scraped surface heat exchangers was significant. A key feature of the installation is Star’s bespoke combined surge drum receiver which transfers any liquid that returns from the process back to the high pressure receiver within minutes. During commissioning this proved to be of paramount importance in maintaining product trials.

    As part of Star Refrigeration’s Total Solutions package NBOL employed Star Technical Solutions to carry out an Ammonia Hazard Assessment (based on DSEAR and Health and Safety Regulations). STS also carried out the written scheme of examination. Star M&E Solutions designed and supplied the electrical panels and carried out the entire electrical installation.

    When it comes to designing energy efficient cooling systems, Star is a natural innovator. Star works with clients across the globe to deliver low carbon, cost saving solutions.


  • Nisa-Today's


    Star Refrigeration has completed the turnkey installation of two cold store facilities within Nisa-Today’s new state-of-the-art warehouse and distribution centre in North Lincolnshire.

    Nisa-Today’s is the UK’s leading buying and distribution company for independent retailers and wholesalers. The group supplies branded, alternative and own label products covering the ambient, frozen, chilled and licensed sectors.

    Nisa-Today’s recently invested in a purpose built 625,000sqft ambient warehouse and distribution centre in Scunthorpe. The £30million facility was designed to expand UK distribution and boost supply chain efficiency.

    Nisa-Today’s required two refrigerated compartments within the new warehouse to pilot a range of frozen and chilled products. It was vital that the temperature controlled cold stores were self-supporting and imposed no additional energy load on the main building.

    Cooling solutions specialist Star Refrigeration was tasked to design and build the two cold storage facilities for Nisa-Today’s. Star delivered a turnkey supply and installation package, completing the project on time and to budget.

    Star Refrigeration Sales Director Rob Lamb says: "Star was responsible for managing every aspect of the Nisa-Today’s cold and chill room project, from design through to delivery. Our team managed specialist contractors on site and worked in conjunction with the construction company for the main building. The success of the project is another example of Star’s forward thinking partnership approach to deliver a turnkey cold storage solution."

    Star’s scope of work included the provision of support steelwork, insulated panels, concrete floors, under floor heating and refrigeration plants for both cold stores. The company was also responsible for control panels, electrical wiring, emergency lighting, safety provision, temperature monitoring and alarm systems.

    Each cold store measures around 792 cubic metres and compartment temperatures are controlled at +4°C and -22°C. Cooling is provided by two separate refrigeration plants operating on the synthetic refrigerant R404a. 

    The refrigeration plants comprise ceiling mounted coolers connected to air cooled condensing units. The capacities of the condensing units are 23kW for the +4°C compartment and 36kW for the -22°C cold store. Both compartments are designed to operate at -22°C to provide maximum flexibility.

    The outer casing and steelwork of the cold stores were finished in a matching colour to the warehouse interior. The condensing units are sited externally in self-contained weatherproof housing designed to match the exterior of the building.

    The new Nisa-Today’s warehouse is the epicentre for the delivery of ambient products across the UK, Northern Ireland and the Channel Islands. The vast distribution centre is the size of 40 football pitches and has a capacity of two million cases per week. The new facility was officially opened earlier this year.

    Star Refrigeration is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and maintenance of industrial refrigeration systems. The company offers a turnkey package to all users of refrigeration plant.


  • Northern Foods, Palethorpes


    Cooling specialist Star Refrigeration has completed a plant relocation and refurbishment project for one of the UK's leading food producers, Northern Foods.

    Northern Foods produces own label and branded convenience foods for major retailers. With production facilities across the UK and Eire, the company specialises in frozen, chilled and bakery products including ready meals, pastry products, snacks and pizza.

    In 2005 Northern Foods was looking to transfer production of chilled savoury products from a site in Evesham, Worcestershire, to its Palethorpes production facility in Shropshire. Existing processing equipment including a Starfrost spiral chiller and associated refrigeration plant was required to be relocated to a new factory extension at the Palethorpes facility in Market Drayton.

    Freezing and chilling equipment manufacturer Starfrost was called in to undertake this project for Northern Foods. Starfrost’s project team worked in conjunction with engineers from Star Refrigeration, a key supplier of cooling solutions for the UK food industry. The project demonstrates another successful joint venture for the two firms, since Starfrost was acquired by Star in 2004.

    Star’s first task involved decommissioning and dismantling the 250kW refrigeration plant on site at Evesham. The plant comprised two reciprocating compressors (run and standby), an evaporative condenser complete with water treatment equipment, plus high and low side vessels and electrical panels.

    The refrigeration components were then transported over 80 miles to a brand new purpose built plant room at the Palethorpes facility. The plant was reconstructed, tested and commissioned by Star engineers, before being cleaned and painted. New aluminium clad insulated pipework helped complete the transformation of the refurbished plant.

    Prior to relocation, the plant operated on the R22 gas refrigerant. Due to the current phase out programme, Star took the opportunity to replace R22 with Isceon (r) M079, a modern ‘drop-in’ gas refrigerant. Developed by Star and a chemical partner, R-422A removes the need for expensive system flushing and requires minimal plant modifications. The new refrigerant has also improved the performance of the plant’s compressor.

    The Starfrost Helix Spiral chiller had been in operation at the Evesham site for a number of years. The overall performance and condition of the chiller was deemed excellent and the machine only required minor refurbishment. Technical changes to the configuration of the system were required due to the layout of the new production line at Palethorpes. The direction of rotation within the chiller was reversed and the number of spiraling tiers was adjusted by Starfrost engineers.

    The installation of the chiller at Palethorpes was concurrent with the relocation and refurbishment of the refrigeration plant. This helped to ensure that connection, testing, commissioning and handover were completed on time and on budget.

    Star Refrigeration is the UK’s leading independent refrigeration engineering company. Established in Glasgow in 1970, Star has over 250 employees nationwide, providing technical support at 11 locations across the UK. Star focuses on the design, manufacture, installation, commissioning and maintenance of industrial refrigeration systems. The company offers a turnkey package to all users of refrigeration plant.


  • Norwegian Army


    UK firm Star Refrigeration has designed a groundbreaking renewable energy heat pump system to serve a military base in Norway.

    The Glasgow-based cooling and heating specialist, with Norwegian refrigeration partner Norsk Kulde, has just installed the Neatpump system at the Ramsund Naval Base. Located in the northern county of Troms, the coastal facility is used for Norwegian Army and Royal Norwegian Navy vessel repairs and is also a Special Forces base.

    Star’s Neatpump is an innovative ammonia heat pump plant that extracts heat from seawater in Ramsund’s harbour. A glycol loop submerged in the harbour helps provide hot water and heating to all buildings on the base.

    Neatpump has replaced an ageing heat pump system at the Ramsund base. The previous plant, which operated on synthetic refrigerant R134a, suffered a system failure following less than ten years’ service. The Norwegian Army was looking to replace the existing plant with an environmentally conscious, energy saving heat pump system, with a robust, low maintenance design.

    Unlike many first generation heat pump systems, Star’s Neatpump does not require any synthetic global warming gases (HFCs). It operates using a low charge of ammonia, a naturally occurring refrigerant that has zero ozone depletion potential.

    Ramsund’s Neatpump was built at Star’s Glasgow manufacturing facility and was shipped as a complete packaged unit, ready for installation in an existing plant room at the military base. The plant has a 600kW capacity and a COP (Coefficient of Performance) of 2.7, heating water to temperatures between 60 and 68 degrees Celsius.

    Commenting on the Ramsund project, Kenneth Hoffmann, Star’s Sales Manager – Heating, says: “Energy efficiency and build quality were key to securing this contract. Neatpump’s advanced compressor technology and ultra low maintenance design ensures over 20 years of environmentally conscious service.”

    Kenneth Hoffmann adds: “This is our second Neatpump installation in Norway, working in partnership with Norsk Kulde. Our 15MW district heating system on the Drammen Fjord near Oslo is providing hot water and heating to over 60,000 homes and businesses.”

    Star’s Neatpump is a renewable energy heat pump that extracts heat from seawater, air or any industrial waste stream, such as air conditioning or large scale cooling processes. This waste heat is captured, compressed, boosted and recycled to provide hot water at up to 90°C.

    The Vilter single screw compressor is at the heart of Neatpump. The unique compressor design has balanced pressure across the central rotor, ensuring long life, high reliability and low maintenance. Neatpump is designed to provide over 20 years service without the costly maintenance work associated with other compressor types.

    The high efficiency Neatpump is available with capacities ranging from 300kW to 8000kW. The system can be designed to cool both water and secondary fluids including glycol, making it suitable for a variety of applications including process cooling and heating, AC with heating, steam raising and district cooling, heating and desalination.

    Ideal for both new projects and retrofits, Star’s Neatpump can be commissioned and charged prior to delivery, reducing site installation and commissioning time.

    A world leader in cooling system innovation, Star has developed a range of heat pump solutions to meet the needs of end users in the building services and industrial sectors. As an environmentally conscious supplier, Star’s heat pump solutions typically use natural refrigerants, such as ammonia and carbon dioxide for high efficiency heat generation.

    When it comes to designing energy efficient cooling and heating systems, Star is a natural innovator. Star works with strategic partners across the globe to deliver low carbon, cost saving solutions.


  • Prosper de Mulder


    Prosper de Mulder has completed the installation of an environmentally friendly and highly efficient plate freezer system. The freezers are unusual as they use carbon dioxide as the refrigerant, replacing old plant which used R22. In this application CO² is an ideal choice because it has no ozone depleting potential and will not be subject to impending “F-Gas” regulations. It is also fundamentally non-toxic and therefore is suitable for a system where the freezers are in a labour-intensive production area. Using ammonia in plate freezers is also a risk to site personnel, which is eliminated by the selection of CO². However, the greatest advantage in the use of carbon dioxide is that it enables the plant to run at lower temperatures and lower power consumption than could be achieved with R22 or ammonia. This improvement in performance results partly from greatly improved heat transfer within the plates of the freezer and partly from the reduced pressure drop in the flexible hoses and suction line from the freezer. This means that freeze times have been significantly reduced – a core temperature of –18ºC is reached in the 75mm blocks of meat in 60 minutes, compared to the time of over 2 hours which would be required in the R22 or ammonia plants.

    The plant comprises a low temperature carbon dioxide circuit of two screw compressors and a surge drum/pump set serving 16 plate freezers, each with 26 stations. The total capacity is 1000kW, capable of handling 185 tonnes of meat products per day. The high temperature circuit uses ammonia to condense the carbon dioxide, in two plate and shell heat exchangers. The ammonia system is also used to serve a cold store and some scraped surface heat exchangers, which provide a chilling option for the processing of the product. Heat is rejected from two evaporative condensers.

    Consideration was given to designing an integrated carbon dioxide system; delivering cooling not only to the plate freezers but also to the cold store and the scraped surface heat exchangers. Star had already used carbon dioxide as a refrigerant for cold store and scraped surface heat exchangers, and the results had proven very successful. However, to use carbon dioxide for the cold store would have required operating the high pressure side of the carbon dioxide system at lower conditions than was acceptable for optimised operation of the low temperature freezing plant and the client’s preferred supplier of scraped surface heat exchanger could not supply a unit suitable for operation at the pressures that would be seen with carbon dioxide.

    The main environmental benefit is the low energy consumption of this system in comparison with a more standard design. This has been achieved despite the temperature difference in the cascade heat exchanger through an integrated approach to the system design, including the use of high pressure liquid and waste heat recovery to provide hot gas for the plate freezer defrost cycle. This system means that it is not necessary to run the ammonia compressors at high head pressure in order to achieve a defrost. The nominal CoP of the freezer plant is 1.27 when running at –50ºC CO² plate evaporation and +32ºC ammonia condensation. The equivalent ammonia plant (2-stage) CoP would be 1.38, but because the CO² system can run with low head pressures in colder weather, whereas the ammonia system has to maintain head pressure to provide gas for defrosts, the CoP of the CO² plant can improve to 1.49, if the head pressure drops to 20ºC. The CO² plant configuration also allows the cold store and process load to be run from the ammonia plant; if a two stage ammonia plant was used for the freezers the additional loads would require their own plants, as the intermediate condition of the ammonia freezer plant would be too high for the cold store load.

    These power figures have been verified by site logs – but because the freezer performance is significantly better than predicted it is possible to raise the suction pressure, so that the original design freeze time of 90 minutes is maintained. The plant has not yet been run in this mode, but it is clear that the performance will be substantially better than the ammonia plant.

    One risk in entering this project was that this type of pressurised liquid defrost had not been applied to plate freezers before, However the defrosts have been quick and clean. The freezer is significantly safer than an ammonia one an less likely to rupture. A risk benefit in adopting CO² was the possibility to locate the defrost valves next to the freezers. There are two cranes traversing the freezer hall, so the common practice of raising the pipes to high level and putting the valves outside the room in the roof void was not possible.

    In comparison to the size of compressor required to run ammonia at –40ºC the CO² compressors are significantly cheaper. By running CO² at –50ºC there are also fewer plate freezers in the hall, and with narrower plate profiles for CO² each freezer station contains two more stations than could be fitted into an ammonia station. The defrost system is rather more complex than for ammonia, but this does not offset the savings made in the other areas. So, for this project the CO² system was cheaper to install and is also cheaper to run and maintain than an equivalent R22 or ammonia plant. An analysis of capital and operating costs for the CO² / NH3 cascade system assessed a 10-15% saving for the refrigeration plant and a 5% saving in energy costs.

    A cost benefit that was not realised until the plant was operational and the very fast freeze times proven, was that the clients brief, for 185 tonnes of frozen meat products per day, could have been comfortably met with four fewer plate freezers. However, as the system is designed for a future expansion of 50% more freezing capacity, the client will not be required to purchase more plate freezers to meet future growth in demand. In addition, the client presently has the ability to raise the CO² evaporating temperature and achieve significantly improved performance.

    There are significant opportunities for CO² systems like this one, not only in plate freezers but in blast freezers, spiral freezers and tunnels too. The combination of CO² with the pumped liquid defrost system would allow these other freezers to gain the benefits of more efficient running in the same way as this plate freezer installation has.

    Star Refrigeration is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and maintenance of industrial refrigeration systems. The company offers a turnkey package to all users of refrigeration plant.

    Established in Glasgow in 1970, Star has over 250 employees nationwide and provides fast response 24-hour technical support from a network of nine branches to customers throughout the UK.

    Star's technical advisory arm, Star Technical Solutions (STS), operates as an independent consultancy providing advice on refrigeration engineering issues. Star also owns food freezing and chilling equipment specialist Starfrost, as well as mechanical and electrical contractors Penec.


  • Recent Dairy Installations


    ROBERT WISEMAN DAIRIES

    The Wiseman’s plant reflects the latest technology in terms of energy efficiency including floating head pressure control. The lead compressor, both condensers and all 9 glycol pumps are inverter driven.

    • 2007
    • Bridgwater
    • £1.4M
    • Ammonia/Glycol for process & Chillstore loads
    • 2,700kW process load & 550kW Chillstore load
    • 4 x Star built Grasso ‘S’ compressor packages
    • 2 x BAC CXV evaporative condensers
    • 2 x 1,625kW plate heat exchangers cooling glycol to -2°C
    • 10 x glycol air coolers for Chillstore
    • 1 x glycol buffer tank
    • 9 x glycol pumps

    ARLA DAIRIES

    The Lockerbie project involved the refurbishment and re-location of existing plant from two different sites involving careful coordination and planning between three different Star branches.

    • 2005
    • Lockerbie
    • £450K
    • Ammonia/Chilled Water for process load & R404a for Chillstore
    • 1,523kW process load & 200kW Chillstore load
    • 3 x Sabroe SMC 112 ammonia compressors
    • 1 x BAC CXV ammonia evaporative condenser
    • 1 x baudelot water chiller & tank cooling water to 0.5°C
    • 1 x R404a compressor pack incorporating 3 off Bitzer reciprocating machines each rated at 66kW
    • 1 x R404a air-cooled condenser & HPR
    • 1 x HPR
    • 4 x Chillstore evaporators each rated at 50kW

    ARLA DAIRIES

    The Stourton project required very close control of the chilled water temperature and a very close approach temperature. Star naturally delivered a successful solution, installing equipment that achieved a chilled water supply temperature of 0.7°C ± 0.1°C.

    • 2004 - 2005
    • Stourton (Leeds) Phases 1 & 2
    • £1.5M
    • Ammonia/Chilled Water for process load & packaged glycol chillers for Chillstore
    • 3,500kW process load & 840kW Chillstore load
    • 3 x Star built Grasso ‘H’ ammonia compressor packages
    • 2 x BAC VXC evaporative condensers
    • 3 x 1,500kW spray chillers cooling water to 0.7°C
    • 2 x air-cooled packaged glycol chillers for Chillstore cooling each rated at 420kW
    • 12 x Chillstore coolers each rated at 70kW complete with ‘Integrated Defrost System’

    DAIRYCREST

    The Stonehouse project involved the replacement of an existing, aged and unreliable R22 plant with efficient, modern equipment utilising food grade mono-propylene glycol as a secondary refrigerant.

    • 2004
    • Stonehouse, Gloucester
    • £300K
    • R407C/Glycol & 270kW Chillstore load
    • 1 x water-cooled packaged glycol chiller for Chillstore cooling rated at 300kW comprising 3 x semi-hermetic screw compressors
    • 1 x existing site cooling tower
    • 2 x glycol pumps
    • 2 x Chillstore coolers each rated at 90kW complete with ‘Integrated Defrost System’
    • 3 x Chillstore coolers each rated at 30kW complete with ‘Integrated Defrost System’

    MILKLINK

    By providing a solution that reused much of the existing ammonia plant at Staplemead, Star enabled a cost effective alternative to the use of hired air-cooled chillers.

    • 2006
    • Staplemead, Frome
    • £45K
    • Ammonia/Chilled Water
    • 500kW chilled water process load
    • 1 x Star built package unit comprising plate heat exchanger & surge drum to replace existing submerged coil type evaporator
    • Reuse of existing ammonia compressor and condenser plant

    PRITCHITTS

    The Pritchitts project required close control of the chilled water temperature and a close approach temperature. Star delivered a successful solution by installing a bespoke low temperature version of their standard water-cooled Indigochiller. As well as satisfying temperature control issues the equipment offers unrivalled efficiency by utilising cutting edge variable speed Danfoss Turbocor compressors.

    • 2005
    • Newtownards, Northern Ireland
    • £252K
    • R134A/Chilled Water
    • 1,250kW chilled water process load
    • 1 x Star built water-cooled IW1250LT Indigochiller package unit cooling water to 2.0°C ± 1.0°C. comprising 5 x Danfoss Turbocor centrifugal compressors, 1 x gravity-flooded shell & plate evaporator, 1 x separation vessel & 1 x shell & plate condenser
    • 1 x Star built evaporator pump set comprising inverter driven variable speed run and standby pumps.
    • 1 x Star built condenser pump set comprising fixed speed run and standby pumps.
    • 1 x existing site cooling tower

    Star Refrigeration is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and maintenance of industrial refrigeration systems.

    Star offers a turnkey package to all users of refrigeration plant. Established in Glasgow in 1970, the company provides fast response 24-hour technical support from a network of nine branches to customers throughout the UK.

    Star's technical advisory arm, Star Technical Solutions (STS), operates as an independent consultancy providing advice on refrigeration engineering issues. Star also owns food freezing and chilling equipment specialist Starfrost, as well as mechanical and electrical contractors Penec.


  • Robert Wiseman Dairies


    Star Refrigeration has installed an energy efficient cooling plant for Robert Wiseman Dairies, at its brand new £80million facility in Somerset.

    Star developed the state-of-the-art cooling solution for Robert Wiseman Dairies’ (RWD) new milk production facility in Bridgwater, Somerset. With eight processing dairies nationwide, RWD procures, produces and delivers liquid milk to major multiples and independent retailers throughout Great Britain.

    RWD has a strong record of investing in new facilities to create the UK’s most efficient and environmentally friendly dairies. The company’s new facility in Bridgwater has been designed to produce 500 million litres of milk per year and features a number of innovative technologies to increase energy efficiency and reduce carbon emissions.

    RWD wanted the Bridgwater facility to feature a high efficiency cooling plant, which operated on natural, environmentally conscious refrigerant. Following a competitive tender process, Star worked closely with RWD in a contract valued at over £1.5million.

    Star’s cooling solution for the Bridgwater site comprised a high efficiency process cooling and cold room refrigeration system. The system operates with natural ammonia as the primary refrigerant, cooling a glycol secondary fluid.

    The refrigeration plant has a total cooling capacity of over 3MW covering both process and cold room cooling requirements. In addition, Star’s Envitherm transcritical CO2 heat pump provides high grade heat recovery for office and water cooling.

    Energy efficient design features include inverter driven motors, floating head pressure control, economised screw compressors and heat recovery for warm glycol cooler defrosting. These provide RWD with an annual running cost saving of over £80k, when compared to a typical system design.

    Star Refrigeration Sales Director Rob Lamb says; “The Robert Wiseman Dairies project demonstrates how energy efficiency benefits and running cost savings can be applied to large capacity cooling systems.”

    The refrigeration plant is located on the first floor of an adjacent plant room. The plant layout is carefully designed to minimise footprint but provide sufficient access for equipment servicing.

    The plant features Star built screw compressor packages and surge drum, connected to evaporative condenser and plate heat exchanger evaporators. It also features variable speed process and evaporator pumps, cold room coolers and an Allen Bradley PLC linked to the main dairy control system. Star-owned mechanical and electrical contractor Penec was responsible for site wiring and control panels.

    Star Refrigeration is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and maintenance of industrial refrigeration systems. The company offers a turnkey package to all users of refrigeration plant.

    Star's technical advisory arm, Star Technical Solutions (STS), operates as an independent consultancy providing advice on refrigeration engineering issues. Star also owns food freezing and chilling equipment specialist Starfrost, as well as mechanical and electrical contractors Penec.


  • Roche Products


    Cooling solutions specialist Star Refrigeration has completed work as part of an award-winning project for Roche Products, one of the world’s leading healthcare groups.

    Star designed and installed an environmentally advanced and energy efficient cooling system for the building air conditioning at Roche’s new UK headquarters. The state-of-the-art facility in Hertfordshire houses the company’s pharmaceutical business, which provides products and services for the prevention, diagnosis and treatment of disease.

    Environmental sustainability was a guiding principle in the design and construction of Roche’s new headquarters at Shire Park in Welwyn Garden City. Energy efficient cooling for the building’s air conditioning system was key to achieving the high environmental standard and reduced carbon emission levels required.

    The Project Team including Roche, Meica, and BD chose Star as the team’s refrigeration engineering partner. Star specialises in the design, manufacture, installation and operation of highly energy efficient refrigeration systems. The company is renowned for pioneering natural refrigerant solutions to meet the changing needs of customers.

    Star developed a total of five high efficiency chillers to meet the air conditioning and cooling requirements at the Roche headquarters. The project has just received a major award within the refrigeration and air conditioning industry. Cooling Industry Award judges praised the installation for pushing forward the boundaries of environmentally friendlier technology.

    Andy Pearson, Managing Director of Star Refrigeration, says: "Star worked closely with Roche and its project partners to combine several environmental themes with innovative thinking and high quality engineering. Every aspect of the project was conceived with care for the local and global environment. We are proud to have played a key role in providing efficient, reliable and futureproof cooling solutions for a world class facility."

    Star designed and installed two packaged ammonia chillers for general building cooling at the Roche headquarters. The chillers are located on the roof of the building and feature ambient air-cooled condensers to boost efficiency. Each ammonia chiller has a cooling capacity of 930kW.

    Three hydrocarbon chillers were also developed to serve computer cooling requirements on site. The chillers operate with improved performance at average ambient temperature conditions. Each hydrocarbon chiller has a cooling capacity of 130kW.

    All five chillers are fitted with leak detection and alarm systems to minimise health and safety risks. Each chiller features a computerised PLC control system to ensure built-in reliability and continuous operation.

    The Roche project received the ‘Installation of the Year Award – Commercial’ in the Cool Industry Awards 2005. A recent independent report also verified that the new building has achieved CO2 emission levels around 20 per cent below the current Building Regulations target.

    Roche’s new UK headquarters is a 21,800sqm building located on a 10 acre site. The state-of-the-art facility features a health and fitness centre, library, restaurant and café. The building houses around 1,200 Roche staff.

    Star Refrigeration is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and maintenance of industrial refrigeration systems. The company offers a turnkey package to all users of refrigeration plant.

    Star's technical advisory arm, Star Technical Solutions (STS), operates as an independent consultancy providing advice on refrigeration engineering issues. Star also owns food freezing and chilling equipment specialist Starfrost, as well as mechanical and electrical contractors Penec.


  • Scotbeef


    Meat processor Scotbeef has chosen a high efficiency cooling system from Star Refrigeration for a factory extension at its facility in Stirling.

    Scotbeef is a major supplier of Aberdeen-Angus, Scottish beef and lamb products to supermarkets in the UK and across the European Union. The company was recently looking to extend its existing processing site at the Bridge of Allan, in Stirling.

    An energy efficient refrigeration system was required to provide cooling to three new beef processing rooms within the extended facility. It was vital that the cooling system provided accurate temperature control to a post slaughter chill area, beef quarters chill room and boning room.

    Scotbeef opted for a high efficiency ammonia packaged Azanechiller from Star Refrigeration to meet its cooling requirements. The client had visited Star’s manufacturing facility at Westway, near Glasgow, to see the Azanechiller in operation and was impressed by its build quality and low noise levels.

    Star’s Azanechiller is a complete refrigeration package, ideally suited to food and drink production, cold storage, distribution and process cooling. It offers exceptional operating efficiency and has a robust construction designed to provide over 20 years of hassle-free performance.

    Star was responsible for the design, supply, installation and commissioning of Scotbeef’s aircooled Azanechiller, including pumps with variable speed drives, six ceiling mounted glycol coolers and a computerised control system.

    Scotbeef’s low charge ammonia Azanechiller is a central pumped glycol system with a total cooling capacity of 365kW. The unit is fully packaged and located externally.

    Suitable for cooling both water and glycol, Azanechiller was developed by Star for environmentally conscious end users. Ammonia is a naturally occurring refrigerant with zero ozone depletion potential and zero global warming potential. Each unit is pre-charged and factory tested ready for fast installation.

    Star Refrigeration Key Account Manager Grant Buchanan says: “Azanechiller typically offers a 30% increase in performance compared with standard HFC chillers. Its packaged design and careful component selection result in an ultra low refrigerant charge, with all ammonia contained within the chiller and sited outside the facility.”

    He adds: “As a complete refrigeration package, Azanechiller is easy to install. Only an electrical supply and flow/return pipework is required to provide cooling. This cuts down site installation and commissioning time, whilst also avoiding the need for a plant room.”

    Azanechiller is available as an air-cooled or water-cooled unit with cooling capacity from 200kW to 850kW. Azanechiller features high quality, industrial components to offer unrivalled performance, reliability and low maintenance.

    Each unit includes two screw compressors, low noise drive motors, a low charge, low pressure receiver and semi-welded PHE evaporator. Star’s Telstar computerised control system ensures optimum performance, with HMI touch screen interface and broadband connection available for offsite remote monitoring.

    When it comes to designing energy efficient cooling and heating systems, Star is a natural innovator. Star works with strategic partners across the globe to deliver low carbon, cost saving solutions.


  • Sky Studios, Isleworth


    BSkyB’s brand new sustainable landmark broadcast facility features a revolutionary air conditioning system from cooling and heating specialist Star Refrigeration.

    BSkyB is a leading broadcaster of sports, movies, entertainment and news. The company operates the UK’s largest digital pay TV platform from its headquarters in Isleworth, London.

    Star has supplied five of its state-of-the-art Indigochiller refrigeration plants to provide cooling within Sky’s new Sky Studios building. The ground-breaking facility will provide TV studios, technical and post production space for Sky.

    Five air-cooled Indigochiller units, each with a 1MW cooling capacity have been installed on the roof of the new building. Each Indigochiller provides chilled water, which is then pumped through insulated pipework to air handling units (AHUs). These AHUs will provide comfort cooling throughout the Sky Studios building, as well as some computer server cooling.

    Star Refrigeration Sales Manager Michael Reeve says: “A ground-breaking building such as Sky Studios required a state-of-the-art chilling system. Our Indigochillers have a strong track record at BSkyB, with the first installed at Isleworth over six years ago. They have proven efficiency benefits, are low maintenance by design and highly durable.”

    Star has worked in partnership with BSkyB on multiple building cooling projects since 2005 and has installed 36 Indigochiller units to date. Indigochillers are providing a total 18.85MW of cooling across fifteen BSkyB buildings, from Southampton to Livingston.

    Star’s energy efficient Indigochillers are just part of BSkyB’s efforts to ensure Sky Studios helps to reduce carbon footprint, minimise environmental impact and assist renewable energy generation at the Isleworth site.

    Designed for large-scale air conditioning and process cooling, Star’s Indigochiller is manufactured to ensure maximum efficiency, longterm reliability and low life-cycle costs. Each Indigochiller now comes with a three-year ‘no quibble’ guarantee covering component reliability, efficient performance and leak-tight operation.

    Engineered to have minimal effect on the global environment, Star’s Indigochiller has a robust design that aims to eliminate refrigerant leakage and offer over 20 years service.

    The low charge, high performance Indigochiller features a revolutionary Turbocor compressor, which is low maintenance by design to ensure lifelong trouble-free running. The oil-free compressor operates on electromagnetic bearings and uses the synthetic refrigerant R134a. The system offers reliable performance and requires minimal installation, servicing and maintenance.

    Indigochiller is manufactured from the highest quality components selected to minimise the risk of refrigerant leakage, reduce maintenance costs and enhance operating life. Standard features include ‘leak-free’ bellows seal valves, sealed expansion valves and welded steel pipework. The air-cooled Indigochiller has epoxy coated condenser fins as standard to reduce the risk of corrosion damage.

    Available as an air-cooled or water-cooled unit, Indigochiller has capacity options ranging from 250kW to 1,650kW. A robust PLC control system allows the user to monitor refrigerant charge, running conditions and optimise efficiency. Indigochiller is highly energy efficient using only 60% of the energy required by a standard chiller operating on typical load and ambient profiles. This offers end users a significant saving in energy and running costs.

    When it comes to designing energy efficient cooling and heating systems, Star is a natural innovator. Star works with strategic partners across the globe to deliver low carbon, cost saving solutions.


  • Thermosyphon Chillers


    Freechiller from Star Refrigeration provides unrivalled efficiency for medium to large scale elevated water chilling applications (e.g. data centres). As ambient temperatures fall below the return water temperature ‘free cooling’ is available by ‘thermosyphon’ circulation of refrigerant around the chiller without running compressors.

    Freechiller annualised Coefficient of Performance (COSP’s) ranges between 10 to 15, depending on design temperature, chiller configuration and method of heat rejection. Generously sized heat exchangers coupled to high efficiency compressors and motors all contribute to reduce power consumption.

    Freechillers have a robust industrial construction using high integrity components that ensure a plant life in excess of 20 years. Studies of Freechiller installations have shown Life Cycle Costs typically 55% of standard chilled water systems using packaged air cooled HFC chillers. Additionally, use of ammonia allows the installation to be 'futureproofed' and avoids the risk of uncertainty about future use of HFC synthetic (global warming) refrigerants.

    Major financial and government institutions have deployed Freechiller systems for over 20 years to provide efficient, reliable cooling in their data centres. These sites have a high continuous base heat load 24/7, which benefit from low energy consumption and unrivalled resilience Star’s Freechiller delivers. Over 3,000,000 operation hours have been attained without loss of cooling.

    The chillers are typically connected in series in the water circuit to allow them to change operating mode and run independently for optimum system efficiency. The switch to thermosyphon operation is made by simply rotating a 3-way ball valve on the refrigerant side to bypass the compressor. Telstar control system manages this transition automatically and maximises the system run hours in ‘free-cooling’ mode. There is no need for large water diverting valves and additional heat exchangers that are incorporated into other ‘free-cooling’ chillers. Offsite monitoring of the system can also be provided.

    The water circuit has the chillers connected in series to allow each unit to change operating mode when ambient temperatures allow. Standby chillers are normally installed which act as back up mechanical capacity when required and also enhance the annual ‘free-cooling’ run hours.

    Individual Freechiller capacities start from 300kW, with large multiple chiller systems up to 5MW installed. Air cooled and evaporative condensers are available. The wet cooling systems are best suited to larger chillers with space constraints and offer the largest energy savings. Freechiller has low maintenance requirement since they have less compressor run hours than standard chillers.

    Star Refrigeration is the UK’s largest independent industrial refrigeration engineering company. Star focuses on the design, manufacture, installation, commissioning and maintenance of industrial refrigeration systems.

    Star offers a turnkey package to all users of refrigeration plant. Established in Glasgow in 1970, the company provides fast response 24-hour technical support from a network of nine branches to customers throughout the UK.

    Star's technical advisory arm, Star Technical Solutions (STS), operates as an independent consultancy providing advice on refrigeration engineering issues. Star also owns food freezing and chilling equipment specialist Starfrost, as well as mechanical and electrical contractors Penec.