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Une étude numérique des fuites de gaz à travers le jeu des cylindres de compresseurs à pistons.

Numerical investigation of the gas leakage through the piston cylinder clearance of reciprocating compressors.

Numéro : pap. 1267

Auteurs : LOHN S. K., PEREIRA E. L. L.

Résumé

Gas leakage through the clearance between piston and cylinder is a major source of thermodynamic inefficiency in reciprocating compressors, therefore, any simulation model should accurately predict its effect on the overall performance. Factors like misalignment between piston and cylinder and components geometric errors are not taken into account in the simpler numerical models usually adopted to estimate the gas leakage. This paper aims to analyze the impact of such simplifications using a three-dimensional computational fluid dynamics (CFD) model, including transient effects resulting from the piston movement as well as actual geometric errors characteristic of the usual manufacturing processes adopted for the household compressor industry. The results are compared to numerical predictions of simpler models and its benefits are emphasized.

Documents disponibles

Format PDF

Pages : 9 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Numerical investigation of the gas leakage through the piston cylinder clearance of reciprocating compressors.
  • Identifiant de la fiche : 30014032
  • Langues : Anglais
  • Source : 2014 Purdue Conferences. 22nd International Compressor Engineering Conference at Purdue.
  • Date d'édition : 14/07/2014

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