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Conception et tests d'une pompe à chaleur domestique utilisant l'ammoniac comme frigorigène.

Design and test of a domestic heat pump with ammonia as refrigerant.

Auteurs : MONFARED B. A., PALM B.

Résumé

Among alternative refrigerants, ammonia with zero ozone depleting potential (ODP) and global warming potential (GWP), and favorable thermodynamic properties is a sensible choice as a replacement for the synthetic refrigerants, which are powerful greenhouse gases. In this paper, the results of experiments done on a new ammonia water-to-water heat pump prototype at different evaporation temperatures and compressor speeds are reported. The heat pump is designed to deliver 7 kW heat at evaporation temperature of -5°C and condensation temperature of 40°C. The hot discharge gas from compressor is utilized to provide sanitary hot water, and the rest of the heat is used for preheating the tap water and space heating of a single-family house. The compact design of the heat pump helps reducing the refrigerant charge. To reduce the charge further and to prevent oil accumulation at the bottom of evaporator, a minichannel aluminum heat exchanger is used as evaporator.

Documents disponibles

Format PDF

Pages : 8 p.

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 : Design and test of a domestic heat pump with ammonia as refrigerant.
  • Identifiant de la fiche : 30002859
  • Langues : Anglais
  • Source : 4th Conference on Ammonia Refrigeration Technology. Proceedings: Ohrid, North Macedonia, April 14-16, 2011.
  • Date d'édition : 14/04/2011

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