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Document IIF

Recherches théorique et expérimentale sur le fonctionnement du compresseur frigorifique à vis sous des conditions de suralimentation.

Theoretical and experimental research on the working process of a screw refrigeration compressor under superfeed condition.

Auteurs : WU H. G., LI J. F., XING Z. W.

Type d'article : Article, Article de la RIF

Résumé

In order to increase the refrigeration capacity and improve the COP, an economizer arrangement is used in the refrigeration system with screw refrigeration compressor. In this system, the mid-pressure refrigerant gas from the economizer is injected in the screw refrigeration compressor. So it affects the performance of the compressor. In this paper, the working process of a twin screw refrigeration compressor with economizer under different superfeed pressures is studied. A mathematical model for simulating the working process of screw refrigeration compressor under superfeed condition with the economizer is presented; especially the flow coefficient of superfeed is obtained by the experimental research. To verify the model, the p-V diagrams (pressure-volume diagrams) of screw refrigeration compressor under different superfeed pressures with the economizer are recorded successfully by making use of a micro-type pressure sensor that embedded into the groove at the root of the female rotor on the discharge side. The p-V diagrams of theoretical calculation are in good agreement with the results of experimental recorded, which lead to conclusion that the model can be used as a powerful tool for performance prediction of screw refrigeration compressor, also, it is very helpful for refrigeration system design.

Documents disponibles

Format PDF

Pages : 1329-1335

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 : Theoretical and experimental research on the working process of a screw refrigeration compressor under superfeed condition.
  • Identifiant de la fiche : 2008-0134
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 30 - n. 8
  • Date d'édition : 12/2007

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