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Étude exploratoire de la miniaturisation de compresseurs à spirale à rendement optimal pour des réfrigérateurs.

Exploratory study on the miniaturization of optimally efficient scroll compressors for refrigerators.

Numéro : pap. ID: 943

Auteurs : TSUJI T., ISHII N., ANAMI K., et al.

Résumé

An exploratory study using computer simulations was undertaken to provide optimal design guidelines for a miniaturized scroll compressor with the maximum possible overall efficiency. Computer simulations of the mechanical, volumetric and compression efficiencies are presented for a small-scale R134a scroll compressor with a suction volume of 4.25 cm3, driven by a 100W motor under the rated conditions. The optimal combination of the cylinder diameter, the involute base circle radius and scroll height, producing the maximum overall efficiency, was identified. The computer simulations were initially undertaken assuming a radial clearance of 1.0 micro(m) and the axial clearance of 3 micro(m). Subsequently, the axial clearance was increased to 5 micro(m), and the simulations were repeated. The small increase in axial clearance resulted in a substantial decrease in overall efficiency. Finally, FEM simulations were used to examine the structural strength and deformation of the aluminium orbiting scroll for the optimized scroll compressor when it was operated under overload conditions.

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Format PDF

Pages : 10 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

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Détails

  • Titre original : Exploratory study on the miniaturization of optimally efficient scroll compressors for refrigerators.
  • Identifiant de la fiche : 30001090
  • Langues : Anglais
  • Source : Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
  • Date d'édition : 21/08/2011

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