Abbott, a pharmaceutical and healthcare producer, is operating an ammonia-based system to help cool produce at its manufacturing site in Arizona. The cooling system is used to produce a range of products including infant formula and adult medical nutritional produce.
Type of chiller compressor: Screw
Heat transfer fluid: Glycol, water, pumped ammonia
Possible temperature range MT: -25°C – -10°C
Possible temperature range LT: -35°C – -25°C
Cooling capacity (kW): 505 for water/glycol -20°C/-25°C and ambient air temperature of 35°C
Type of chiller compressor: Screw
Heat transfer fluid: Glycol, water
Possible temperature range MT: -35°C – -10°C
Possible temperature range LT: -35°C – -25°C
Cooling capacity (kW): 750 for water/glycol -5°C/-10°C and ambient air temperature 35°C
Type of product: Chiller, Type of chiller compressor: Semi-hermetic screw, Heat transfer fluid: Glycol, Ethylene Glycol, Method of condensation: air-cooled, Possible temperature range MT: -15°C – 0°C, Possible temperature range LT: -30°C – -15°C, Cooling capacity (kW): 172.6, Comments Cooling capacity: Nominal conditions for low temperature: Ambient temperature 35°C with ethylene glycol input/ output at -19/-25°C, with a concentration of 50% by volume, Cold storage or food processing: Both, Unit price: 100000 – 300000, , Training availability: Physical and online, Notes: Direct R717 condensation, semihermetic screw compressor, VSD permanent magnet motor, EC fans, heat recovery, Further information: https://drive.google.com/file/d/1YSoOl4O21WFKBjKGFjHI718fcPFQb899/view?usp=sharing
Type of chiller compressor: Semi-hermetic screw
Heat transfer fluid: Glycol, Propylene Glycol
Possible temperature range MT: -15°C – 0°C
Possible temperature range LT: -30°C – -15°C
Cooling capacity (kW): 362.9 under nominal conditions for medium temperature: Ambient temperature 35°C with glycol inlet/ outlet at -2/-8°C, with a propylene glycol concentration of 35°C
Unit price (in USD): 100,000 – 300,000
Training availability: Physical and online
Notes: Direct R717 condensation, semihermetic screw compressor, VSD permanent magnet motor, EC fans, heat recovery
In January 2015, the first ice rink running on a CO2 transcritical system in the U.S.A. was opened in Anchorage, Alaska. The system is expected to generate the company energy savings of 25-40% and significantly reduce the total spent on refrigerant.
Beginning in 2002, the British supermarket chain ASDA had Star Refrigeration replace all refrigeration units that use the hydrochlorofluorocarbon (HCFC) R-22 at its distribution centres as part of a long-term modernization program. Star Refrigeration designed an ammonia/CO2 cascade system. At one of ASDA’s major distribution centers in Lutterworth, UK, the refrigeration system provides efficient refrigeration for the 270,000 m³ premises. Areas requiring refrigeration are: a frozen food cold store at -25°C and several chill rooms at temperatures between 1°C and 13°C. The chill rooms are cooled with carbon dioxide as a volatile secondary refrigerant.
Axima Refrigeration has developed an advanced ammonia cooling system for the Belgian Ice cream Group (BIG). BIG, as an ice cream manufacturer, is part of an industry that relies on superior cooling. Following pasteurization and homogenization, a mixture of cream, sugar and other ingredients is frozen and beaten up to ice cream in continuous freezers. The finished products, from cones and desserts to sorbets are sent to ducts for ultra fast freezing, after which they are packed. They are then placed in freezer storage (over 90,000 m²) at a constant temperature of -30°C. Axima Refrigeration was the first in Belgium to use a Powerdrive frequency converter with a permanent magnet synchronous motor during the installation of a new screw compressor at BIG, giving 10% better energy efficiency.
CO2 refrigerant is being used to provide cooling at Bergen Harbour’s Ship Terminal in Norway, previously cooled by an R-22 system. The UNESCO World Heritage site uses the refrigerant to provide cooling for 44,132ft2 of chilling and freezing areas, located on the mezzanine on the landsides for cargo from the ships. Heat waste from the systems is then recovered to provide heating in the terminal and offices.
Type of chiller compressor: Screw
Heat transfer fluid: Water, glycol
Possible temperature range MT: -15°C – +18°C
Cooling capacity (kW): 1730 at +12/+6°C
Case study at shecco’s Virtual Trade Show showed its application in data centers
