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Un modèle thermique pour les compresseurs à spirale incluant la résolution de la distribution de température sur les enroulements des spirales.

A lumped thermal parameter model for scroll compressors including the solution of the temperature distribution along the scroll wraps.

Numéro : pap. 1341

Auteurs : PEREIRA E. L. L., DESCHAMPS C. J., DINIZ M. C.

Résumé

A lumped parameter thermal model has been developed to predict the temperature distribution of scroll compressors with especial attention to gas superheating in the suction process. Thermal resistances between the components were based on global heat transfer coefficients, whereas conduction heat transfer through the scroll wraps was solved via a one dimensional finite volume method. The thermal model was coupled to a thermodynamic model of the compression cycle and then applied to simulate the compressor performance at different conditions of speed and pressure ratio. The model was able to correctly predict the compressor temperature distribution for operating conditions within the range of those adopted for its calibration. The results showed a strong coupling between the compressor thermal profile and the temperatures of the motor and lubricating oil. The model demonstrated that heat conduction through the scroll wraps reduces slightly the discharge temperature.

Documents disponibles

Format PDF

Pages : 10 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 : A lumped thermal parameter model for scroll compressors including the solution of the temperature distribution along the scroll wraps.
  • Identifiant de la fiche : 30007532
  • Langues : Anglais
  • Source : 2012 Purdue Conferences. 21st International Compressor Engineering Conference at Purdue.
  • Date d'édition : 16/07/2012

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