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Pompe à chaleur biétagée air-eau dans les applications résidentielles de chauffage et de refroidissement dans les climats septentrionaux aux Etats-Unis.

Two-stage air-source heat pump for residential heating and cooling applications in northern US climates.

Auteurs : BERTSCH S. S., GROLL E. A.

Type d'article : Article, Article de la RIF

Résumé

Air-source heat pumps for residential heating are more widely used than geothermal heat pumps mainly due to their lower installation costs. Major disadvantages of air-source heat pumps are the decrease of heat output and COP, and increase in discharge temperature, towards low outdoor temperatures. In this paper an air-source two-stage heat pump using R-410A as the refrigerant was simulated, designed, constructed, and tested at ambient temperatures as low as -30°C and supply temperatures of up to 50°C in air and water heating mode. In addition, the system is able to provide sufficient air conditioning in cooling mode (approximately 50-60% of the design heat transfer rate in heating mode). A short summary of an extended literature review is shown as well as a theoretical screening study of the three most promising cycles. Furthermore, the design and test results of a breadboard system and a comparison with commercially available heat pumps are presented. Second law efficiencies of up to 45% could be achieved, resulting in a COP of 2.1 at -30°C ambient temperature

Documents disponibles

Format PDF

Pages : 1282-1292

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 : Two-stage air-source heat pump for residential heating and cooling applications in northern US climates.
  • Identifiant de la fiche : 2008-2737
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 31 - n. 7
  • Date d'édition : 11/2008

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