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Carbon dioxide: secondary coolant or refrigerant for cascade systems?

Author(s) : INFANTE FERREIRA C. A., BOUKENS R. A.

Summary

Ammonia is ecologically safe but its application in spaces with a large number of occupants is restricted. For these applications indirect systems are required. Carbon dioxide is ecologically safe too, has acceptable COP values for low temperature applications and is a perfect medium to be used as secondary coolant in low temperature applications. Ammonia-carbon dioxide systems have perspectives to fulfill the criteria superimposed to alternatives. A comparison is made between an ammonia refrigeration system coupled with a conventional secondary refrigerant loop, the same ammonia cycle cascaded with a CO2 cycle at the low operating temperature level and the same ammonia cycle coupled with a secondary CO2 refrigerant loop.

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Pages: 10 p.

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Details

  • Original title: Carbon dioxide: secondary coolant or refrigerant for cascade systems?
  • Record ID : 1997-2808
  • Languages: English
  • Source: Applications for Natural Refrigerants
  • Publication date: 1996/09/03
  • Document available for consultation in the library of the IIR headquarters only.

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