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Study to determine the existence of an azeotropic R22 "drop-in" substitute.

Author(s) : KIM M. S., MORRISON G., MULROY W. J., DIDION D. A.

Type of monograph: Booklet

Summary

This paper presents laboratory and computer simulation evaluation of two of the azeotropic refrigerant mixtures which were identified, HFC-134a with R290 (propane) and HFC-134a with R600a (isobutane), in a generic heat pump apparatus. A third mixture, HFC-134a with cyclopropane is examined by computer simulation only. The performance characteristics of these azeotropes were compared with pure CFC-12, HFC-134a, HCFC-22, and R290 at high temperature cooling and heating conditions. Use of liquid-line/suction-line heat exchange was evaluated. Extract from the table of contents: azeotropy in refrigerant mixtures; performance prediction; laboratory performance evaluation; performance results and discussion; flammability measurements.

Details

  • Original title: Study to determine the existence of an azeotropic R22 "drop-in" substitute.
  • Record ID : 1999-0625
  • Languages: English
  • Publication: Us department of commerce, ntis (national technical information service) - United states/United states
  • Publication date: 1996/03
  • Source: Source: NISTIR 5784; 48 p. (21.6 x 28); tabl.; USD 51.00.
  • Document available for consultation in the library of the IIR headquarters only.

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