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Etude expérimentale à partir des diagrammes des indicateurs p-V d'un compresseur frigorifique à double vis à économiseur.

Experimental study on p-V indicator diagrams of twin-screw refrigeration compressor with economizer.

Auteurs : WU H., PENG X., XING Z., et al.

Type d'article : Article

Résumé

This article presents the experimental investigation on the effects of the superfeed pressure together with economizer type on the performance of the twin-screw refrigeration compressor by means of the indicator diagram. The results indicate an optimal superfeed pressure for maximized compressor efficiency, which can be identified from the calculated compressor efficiency based on the indicator diagrams. It is also found that the pressure has a rapid increase at the beginning of superfeed process, and then a slow rise even a slight drop at the end of superfeed process, which is caused by the dynamic effect during superfeed process. Furthermore, if the superfeed pressure stays the same, the pressure during compression in the compressor with the heat exchanger economizer is slightly higher than with the flash tank economizer, due to the higher temperature of superfeed refrigerant gas in the former case.

Détails

  • Titre original : Experimental study on p-V indicator diagrams of twin-screw refrigeration compressor with economizer.
  • Identifiant de la fiche : 2005-0137
  • Langues : Anglais
  • Source : Applied Thermal Engineering - vol. 24 - n. 10
  • Date d'édition : 07/2004

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