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Alternatives au CFC-114 dans les pompes à chaleur fonctionnant à haute température avec le HFC-236ea et le HFC-236fa.

Alternatives to CFC-114 in high temperature heat pumps: compressor performance with HFC-236ea and HFC-236fa.

Auteurs : KAZACHKI G. S., GAGE C. L., HENDRIKS R. V.

Résumé

Comprehensive calorimeter tests on a semi-hermetic compressor were performed with CFC-114, HFC-236ea, anf HFC-236fa over a wide range of temperature test conditions: evaporating temperatures from 0 to 35 deg C and condensing temperatures from 40 to 110 deg C. The following parameters were assessed: cooling capacity; electric power input, current, and voltage; COP; compressor volumetric and identropic efficiencies; and discharge and oil temperatures. Polyolester oil was used as lubricant in the compressor. The oil charge was unchanged when switching refrigerants. With all three refrigerants, the compressor ran 1,800 hours without failure and without indication of excessive noise or vibration.

Détails

  • Titre original : Alternatives to CFC-114 in high temperature heat pumps: compressor performance with HFC-236ea and HFC-236fa.
  • Identifiant de la fiche : 1998-1916
  • Langues : Anglais
  • Date d'édition : 09/1996
  • Source : Source : IEA HPC, Pap. Conf., Toronto
    8 p.; 12 fig.; 1 tabl.; 11 ref.
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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