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Recherche sur l'existence d'un mélange azéotropique comme fluide de remplacement immédiat du R22.

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

Auteurs : KIM M. S., MORRISON G., MULROY W. J., DIDION D. A.

Type de monographie : Brochure

Résumé

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.

Détails

  • Titre original : Study to determine the existence of an azeotropic R22 "drop-in" substitute.
  • Identifiant de la fiche : 1999-0625
  • Langues : Anglais
  • Édition : US Department of Commerce, NTIS (National Technical Information Service) - États-unis/États-unis
  • Date d'édition : 03/1996
  • Source : Source : NISTIR 5784; 48 p. (21.6 x 28); tabl.; USD 51.00.
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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