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Cartographie de la performance de plusieurs systèmes à pompe à chaleur sans conduit, utilisés pour les opérations de chauffage, de refroidissement et de dégivrage.

Performance mapping for variable ductless heat pump systems in heating, cooling and defrost operation.

Numéro : pap. 2289

Auteurs : CHEUNG H., BRAUN J. E.

Résumé

As the market for ductless heat pump systems (DHPs) has grown so has the need to represent their performance in building simulation programs to enable the study of their effect on building energy consumption and to assist in the building design. For computationally efficient building assessments, quick computation for power consumption under different external effects is necessary. In this paper, data from various heating and cooling tests on a 9500 Btu/h (2782 W) unit are presented. In both operation modes, the minimum and maximum capacity under different environmental conditions, the indoor unit power consumption and the part-load performance were modeled from the data. A defrost model was also constructed to adjust the heating part-load model for defrost operation and a sensible heat ratio model was built to capture the humidity removal performance of the DHP in cooling. Good agreement between the measurement and prediction was found.

Documents disponibles

Format PDF

Pages : 10 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

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

Détails

  • Titre original : Performance mapping for variable ductless heat pump systems in heating, cooling and defrost operation.
  • Identifiant de la fiche : 30006434
  • Langues : Anglais
  • Source : 2012 Purdue Conferences. 14th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 16/07/2012

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