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Document IIF

Modélisation numérique des caractéristiques transitoires de démarrage dans les compresseurs à piston.

Numerical modelling of the start up transient in reciprocating compressors.

Auteurs : LINK R., DESCHAMPS C. J.

Résumé

Most simulation methodologies for compressors available in the literature consider a steady state operating condition. However, several phenomena that affect the compressor energy efficiency, noise level and reliability are associated with transient effects that occur when the compressor is either switched on or switched off. This paper presents a methodology, experimentally validated, to simulate the compressor start up, but considering a thermal equilibrium condition. From the results for the voltage during the start up, it is shown that the compressor equalization pressure greatly affects the torque that the electrical motor must overcome. It is also observed that mechanical losses are influenced by the compressor transient operation condition, with the bearing geometry being a factor of particular importance.

Documents disponibles

Format PDF

Pages : ICR07-B2-1604

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

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Détails

  • Titre original : Numerical modelling of the start up transient in reciprocating compressors.
  • Identifiant de la fiche : 2008-0128
  • Langues : Anglais
  • Source : ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
  • Date d'édition : 21/08/2007

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