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Développement d'un système de chauffage d'eau à pompe à chaleur avec un compresseur à spirale hermétique au dioxyde de carbone.

[In Japanese. / En japonais.]

Auteurs : MORIGAMI K., WATANABE Y.

Type d'article : Article

Résumé

Carbon dioxide as a working fluid is used for residential heat pump water heaters, because it has little negative environmental impact and excellent characteristics for heating. A very efficient heat exchanger (gas cooler) was developed by adopting a concentric triple tube (inner double tube for refrigerant and outer single tube for water), and also available is a high performance scroll compressor with high efficiency and high reliability without an accumulator, by optimization of the oil injection rate. As a result, a new heat pump water heater with a COP of 4.20 at normal conditions and operating sound levels of 38 dB, which is one of the most efficient and silent systems in the industry, was developed.

Détails

  • Titre original : [In Japanese. / En japonais.]
  • Identifiant de la fiche : 2005-0120
  • Langues : Japonais
  • Source : Refrigeration - vol. 79 - n. 917
  • Date d'édition : 2004

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