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Prédiction de la surchauffe du gaz à l'aspiration dans les compresseurs à piston.

Predicting the suction gas superheating in reciprocating compressors.

Numéro : pap. 1412

Auteurs : LACERDA J. F., TAKEMORI C. K.

Résumé

A considerable portion of the cooling capacity losses on a household compressor occurs due to heating of the gas entering through the suction tube, which is called as superheating. A better understanding of the flow and heat transfer phenomena involved is crucial to improve compressor efficiency. In this work, it is presented a numerical simulation study using a commercial code to analyze a transient three-dimensional, compressible and non-isothermal flow, which has been used for modeling the problem. The computational domain considered the suction tube, a portion of the compressor cavity and the suction muffler. Prescribed transient mass flow rates obtained by simpler 0D/1D models have been used as boundary conditions while the cavity gas and wall temperatures were prescribed based on experimental methods. The results showed that the mean temperature of the gas entering into the compressor was 40°C, while the mean temperature of the gas leaving the suction muffler was 63°C, presenting 23°C of superheating.

Documents disponibles

Format PDF

Pages : 8 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 : Predicting the suction gas superheating in reciprocating compressors.
  • Identifiant de la fiche : 30014063
  • Langues : Anglais
  • Source : 2014 Purdue Conferences. 22nd International Compressor Engineering Conference at Purdue.
  • Date d'édition : 14/07/2014

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