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Performance en terme de chauffage avec un certain rapport volumétrique du compresseur biétagé.

Heating performance with a volume ratio on 2-stage compressor.

Numéro : pap. n. R23, 2479

Auteurs : KO Y., PARK S., RYU B., et al.

Résumé

Generally, the lower outdoor air temperature gets, the more heating capacity is needed. But the heating capacity of heat pump decreases, when the outdoor air temperature becomes low. As one way to prevent the performance degradation, in this study the heat pump with 2-stage rotary compressor has been investigated with variable volume ratios. The volume ratio is one of the major factors which are influenced to the heat pump performance. The computer simulation and experimental test have shown that the optimal volume ratio is 63% and 59%, respectively. Finally, the heating capacity and COP of the gas injection system are enhanced by 18 % and 10% at the outdoor air temperature of - 15°C, respectively. This improvement is resulted from the increase of refrigerant mass flow rate and efficiency of the evaporator.

Documents disponibles

Format PDF

Pages : 9 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 : Heating performance with a volume ratio on 2-stage compressor.
  • Identifiant de la fiche : 30000979
  • Langues : Anglais
  • Source : 2010 Purdue Conferences. 13th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 12/2010

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