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Commercial refrigeration with ammonia and CO2 as working fluids.

Author(s) : EGGEN G.

Summary

The author presents different concepts for commercial refrigerating systems using ammonia as working fluid and CO2 as a secondary fluid or working fluid. CO2 is regarded a very promising secondary fluid for low temperature (freezing) applications, e.g. in combination with two-stage ammonia systems. CO2 is also a viable option in a cascade ammonia/CO2 plant. Moreover, when commercial high-pressure compressors are developed, CO2 can be used as the only working fluid. The latter systems will attain a higher energy efficiency than that of conventional direct expansion systems and two-stage ammonia plants using CO2 as a secondary fluid.

Details

  • Original title: Commercial refrigeration with ammonia and CO2 as working fluids.
  • Record ID : 1998-3401
  • Languages: English
  • Source: Compression systems with natural working fluids. International R&D on heat pump, air conditioning and refrigerating systems. Workshop proceedings.
  • Publication date: 1997/10/02
  • Document available for consultation in the library of the IIR headquarters only.

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