Star helps 80m [pounds sterling] dairy keep its cool.Star Refrigeration refrigeration, process for drawing heat from substances to lower their temperature, often for purposes of preservation. Refrigeration in its modern, portable form also depends on insulating materials that are thin yet effective. has installed an energy efficient cooling plant for Robert Wiseman Dairies Robert Wiseman Dairies is a large Scottish milk supplier and ditributor. They are now one of the largest dairy businesses in Great Britain. The company was founded in 1947 using a horse and cart for doorstep deliveries. , at its brand new 80m [pounds sterling] facility in Somerset.
Star developed the state-of-the-art cooling solution for Robert Wiseman Dairies's (RWD RWD Rewind
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RWD Rogalski, Wigura & Drzewiecki ) 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 re·frig·er·ant
1. Cooling or freezing; refrigerating.
2. Reducing fever.
1. A substance, such as air, ammonia, water, or carbon dioxide, used to provide cooling either as the working substance of . Following a competitive tender process, Star worked closely with RWD in a contract valued at over 1.5m [pounds sterling].
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 glycol (glī`kōl), dihydric alcohol in which the two hydroxyl groups are bonded to different carbon atoms; the general formula for a glycol is (CH2)n(OH)2. 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 (1) A logic gate that converts the input to the opposite state for output. If the input is true, the output is false, and vice versa. An inverter performs the Boolean logic NOT operation.
(2) A circuit that converts DC current into AC current. Contrast with rectifier. 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 [pounds sterling], when compared to a typical system design.
Star Refrigeration sales director Rob Lamb said: "The Robert Wiseman Dairies project demonstrates how energy efficiency benefits and running cost savings can be applied to large capacity cooling systems cooling systems
for housed animals include spraying of roofs with water, evaporative pads with fans, foggers and misters; for pastured animals shelter from the sun by trees or artificial shade devices and cooling ponds are used. ."
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 condensers and plate heat exchanger The plate heat exchanger (PHE) was invented by Dr Richard Seligman in 1923 and revolutionised methods of indirect heating and cooling of fluids.
A plate heat exchanger is a type of heat exchanger that uses metal plates to transfer heat between two fluids. 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.
Contact Star Refrigeration on tel 0141 638 7916 or visit www.star-ref.co.uk