Partager

Document IIF

Compresseurs à spirale à injection de vapeur : le concept du froid commercial et l'évaluation de leur performance.

Vapour injected scroll compressors in commercial refrigeration concept and performance evaluation.

Auteurs : WINANDY E., HUNDY G.

Résumé

A vapour-injected scroll compressor can accommodate mid-pocket inter-stage injection and hence enable the economised cycle within one compressor-enhancing system performance especially for low temperature refrigeration. This paper first describes the economised vapour injection scroll compressor concept, its key components, associated performance and application aspects for commercial refrigeration systems. Emphasis is then given to the performance evaluation of such compressors. All the operating parameters are presented and their influence on the system performance evaluated. Apart from the typical pressure and temperatures influencing the compressor performance, the heat exchanger used to subcool the liquid and the expansion device operating conditions, have a strong influence on the injected mass flow in the compressor and hence on the overall system performance. The condenser or "natural" subcooling, the economiser vapour superheat and the approach temperature will all influence the compressor capacity and power. Finally some design guidelines are presented that are aimed at optimum performance of the combination compressor/economiser.

Documents disponibles

Format PDF

Pages : 2005-3

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 : Vapour injected scroll compressors in commercial refrigeration concept and performance evaluation.
  • Identifiant de la fiche : 2006-0700
  • Langues : Anglais
  • Source : Commercial Refrigeration. Thermophysical Properties and Transfer Processes of Refrigerants. Proceedings of the IIR International Conferences.
  • Date d'édition : 30/08/2005

Liens


Voir d'autres communications du même compte rendu (140)
Voir le compte rendu de la conférence

Indexation