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Comparaison de la performance en mode chauffage des pompes à chaleur air-eau utilisant différents types d'injection de frigorigène.

Comparison of the heating performance of air-source heat pumps using various types of refrigerant injection.

Auteurs : HEO J., JEONG M. W., BAEK C., et al.

Type d'article : Article, Article de la RIF

Résumé

The performance degradation of air-source heat pumps cannot be avoided when they operate at both very low and high ambient temperatures. The refrigerant injection technique has rapidly developed in recent years due to its outstanding performance at low ambient temperatures. This study measured the heating performance of air-source heat pumps in which novel vapour injection techniques of a combined flash tank and sub-cooler (FTSC) cycle and a double expansion sub-cooler (DESC) cycle were applied. The performance of these cycles was compared with that of a flash tank (FT) and a sub-cooler (SC) cycle. The average heating capacities of the FT, FTSC, and DESC cycles were higher by 14.4, 6.0, and 3.8%, respectively, relative to that of the SC cycle, but the average COPs for the respective cycle options were very similar.

Documents disponibles

Format PDF

Pages : pp. 444-453

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Comparison of the heating performance of air-source heat pumps using various types of refrigerant injection.
  • Identifiant de la fiche : 2010-2027
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 34 - n. 2
  • Date d'édition : 03/2011

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