IIR document

New working fluids for refrigeration.


During the decade of the 1990s, refrigeration and air conditioning products must undergo a dramatic change in working fluids (defined in the paper as refrigerant/lubricant combinations) in order to comply with environmental regulations. The requirements these working fluids must meet are extensive, including favorable thermodynamic and thermophysical properties, as well as considerations of environmental impact (ozone depletion and global warming), toxicity and safety (including flammability). The variety of compressor types and sizes and different system applications add further complexity to the requirements of the refrigerants and lubricants, for optimized product performance. The paper discusses working fluids that have been introduced as substitutes for CFCs and candidate working fluids under investigation as substitutes for HCFCs. Properties of new working fluids for household refrigerators and freezers, room and residential air conditioners, automotive air conditioners, supermarkets and chillers are reviewed and compared with properties of the fluids being replaced. Potential impact of new working fluids on product performance, reliability and durability are discussed.

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  • Original title: New working fluids for refrigeration.
  • Record ID : 1996-2716
  • Languages: English
  • Source: For a Better Quality of Life. 19th International Congress of Refrigeration.
  • Publication date: 1995/08/20
  • Document available for consultation in the library of the IIR headquarters only.


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