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Document IIF

Conception d'un système de chauffe-eau à pompe à chaleur au CO2.

System design of a CO2 heat pump water heater.

Auteurs : WU Z., XU M., WANG Y., et al.

Résumé

As a natural working fluid, carbon dioxide is a promising choice of refrigerant substitutions. Water heating is one promising application of the CO2 transcritical cycle. In this paper, a CO2 heat pump water heater (HPWT) prototype was constructed. A tube-fin heat exchanger was used as an evaporator. A double-tube heat exchanger was used as a gas cooler. And a capillary tube was chosen as the expansion device. And some experiments were conducted to determine the optimum capillary tube. Meanwhile the influence of the temperature of the water supplied to the gas cooler on the performance of the prototype was studied. This could lead two different methods of water supplied to the consumer's convenience. The results indicated that the CO2 HPWT is more competitive than the traditional water heater and has a better future.

Documents disponibles

Format PDF

Pages : ICR07-E2-451

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 : System design of a CO2 heat pump water heater.
  • Identifiant de la fiche : 2008-0856
  • Langues : Anglais
  • Source : ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
  • Date d'édition : 21/08/2007

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