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Design methodology and geometric modeling of complete meshing profiles for scroll compressors.

Méthodologie de conception et modélisation géométrique des profils de maillage complets pour les compresseurs à spirale.

Auteurs : WANG J., LIU Q., CAO C., et al.

Type d'article : Article, Article de la RIF

Résumé

A novel design methodology has been proposed based on the equidistant curve approach for constructing the complete meshing profiles (CMPs) of scroll compressors. The CMPs, including the peripheral profiles and central profiles for both the orbiting and fixed scrolls, can be generated simultaneously by offsetting the midline in the convex and concave direction. Three examples of the CMPs, named the circular arc modified wrap, circular arc add line modified wrap and asymmetric circular arc modified wrap, have been designed and illustrated by using the proposed design method. Geometric models of these three CMPs are established. Effects of geometric parameters of the modified wrap on performance of the scroll compressor are analyzed. The discharge pressure under the same suction volume of the scroll compressors with these three modified wraps are compared using numerical simulation. Results show that the discharge pressure of the circular arc modified wrap is bigger than that of the circular arc add line modified wrap with the same conditions, and the symmetric wrap is better than the asymmetric wrap in terms of the compression efficiency. The proposed design method is convenient to design new types of the advanced CMPs with better thermal and mechanical properties for scroll compressors.

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Format PDF

Pages : 199-210

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Détails

  • Titre original : Design methodology and geometric modeling of complete meshing profiles for scroll compressors.
  • Identifiant de la fiche : 30024002
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 91
  • Date d'édition : 07/2018
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2018.05.011

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