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Méthode d'évaluation simple de la performance d'un système à débit de frigorigène variable utilisant le rendement volumétrique du compresseur.

The simple performance evaluation method of VRF system using volumetric efficiency of compressor.

Numéro : pap. 2422

Auteurs : SEKINE N., FURUHASHI Y., KAMETANI S.

Résumé

This paper deals with the simple performance evaluation method of variable refrigerant flow (hereafter VRF) system using volumetric efficiency of compressor. Generally, it is very difficult to evaluate the actual performance of VRF system, and it is a matter of urgency to establish the performance evaluation method on the actual condition. Especially, the simple method which can be used by user is essential to sound development of the air conditioning system. The refrigerant mass flow and the capacity are calculated by the mechanical formula of the compressor. Since only volumetric efficiency is an unknown parameter of this formula, we calculated the volumetric efficiency using the refrigerant flow meter in the several static conditions and analyzed the change of the volumetric efficiency. The results show that the volumetric efficiency is about 90% in all condition. Therefore, we calculated the capacity using the fixed volumetric efficiency as the simple method. The relative error between this method and the capacity based on the refrigerant flow meter is less than 9%.

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 : The simple performance evaluation method of VRF system using volumetric efficiency of compressor.
  • Identifiant de la fiche : 30006376
  • 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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