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Une analyse expérimentale et numérique de l'écoulement du frigorigène à l'intérieur du silencieux à l'aspiration d'un compresseur à piston hermétique.

An experimental and numerical analysis of refrigerant flow inside the suction muffler of hermetic reciprocating compressor.

Numéro : pap. 1184

Auteurs : SARIOGLU K., ÖZDEMIR A. R., KAYA A., et al.

Résumé

In this study, detailed temperature and pressure measurements were performed at the inlet, outlet and outer boundaries of the suction muffler of a hermetic reciprocating compressor. The measurements were conducted without effecting real phenomena. After experimental studies, detailed computational fluid dynamic analysis of the refrigerant flow (isobutane) in the suction muffler was performed. Experimental pressure and temperature values at the inlet, outlet and outer boundaries of the suction muffler were used as boundary conditions. The effect of suction valve (opening and closing) at the exit of the suction muffler has been considered. 3-dimensional time dependent calculations were completed when statistically steady state convergence was reached for one crank period. Realizable k-? turbulence model with appropriate parameters, second order discretizations for time and space derivatives and real gas model for isobutane (R600a) were applied for the numerical analysis. Mesh dependency of the analysis and solver algorithms were also investigated. The results of the numerical analysis has shown that the time integrated average of the numerically calculated mass flow rate is close to average mass flow rate measured with a calorimeter test system. Furthermore, thermal mapping inside the suction muffler shows good agreement with experimental results. Time dependent flow analysis results inside the suction muffler help to characterize the flow and acoustic function of the muffler which leads to the new and better muffler designs.

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 : An experimental and numerical analysis of refrigerant flow inside the suction muffler of hermetic reciprocating compressor.
  • Identifiant de la fiche : 30006986
  • Langues : Anglais
  • Source : 2012 Purdue Conferences. 21st International Compressor Engineering Conference at Purdue.
  • Date d'édition : 16/07/2012

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