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Modélisation et essais des effets de fractionnement lors de l'usage des mélanges de frigorigènes dans une pompe à chaleur résidentielle.

Modelling and testing of fractionation effects with refrigerant blends in an actual residential heat pump system.

Auteurs : BIANCARDI F. R., PANDY D. R., SIENEL T. H., MICHELS H. H.

Résumé

The heating, ventilating, and air-conditioning industry is actively evaluating and testing hydrofluorocarbon (HFC) refrigerant blends. While analyses and system performance tools have shown that HFC refrigerant blends offer certain performance, capacity and operational advantages, there are significant possible service and operational issues that are raised by the use of blends. Many of these issues occur due to the fractionation of the blends. Therefore, the objective of the program was to conduct analyses and experimental tests aimed at understanding these issues, develop approaches or techniques to predict these effects, and convey to the industry safe and reliable approaches. Model predictions and experimental results are presented for HFC refrigerant blends containing R32, R134a, and R125 and the data are generalized for various operating conditions and scenarios.

Détails

  • Titre original : Modelling and testing of fractionation effects with refrigerant blends in an actual residential heat pump system.
  • Identifiant de la fiche : 1998-1529
  • Langues : Anglais
  • Source : ASHRAE Transactions.
  • Date d'édition : 1997
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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