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A one-dimensional model for compressible oscillatory flow in the regenerator of pulse-tube refrigerators.

Un modèle unidimensionnel pour l'écoulement oscillatoire compressible dans le régénérateur des réfrigérateurs à tube à pulsation.

Auteurs : JAFARIAN A., SAIDI M. H., HANNANI S. K., et al.

Résumé

The objective of this research is to investigate the hydrodynamic behaviour of the regenerator of pulse tube refrigerators considering porous media approach. The conservation equations are transformed by the method of volume averaging. This method as an analytical approach is used to unite the micro scale and macro-scale effect characteristics to porous media flows. A method of harmonic approximation is employed to derive an analytical solution. To investigate the system performance, second law analysis is performed and the second law efficiency is calculated. The effect of geometry and operating key parameters on regenerator performance are investigated as well. With the developed model it is able to predict the oscillating flow and heat transfer in the regenerator. To determine the optimum operation conditions that minimize process irreversibility the method of entropy generation minimization is employed. To validate the model, results are compared with experimental and numerical data in the literature.

Documents disponibles

Format PDF

Pages : ICR07-A1-889

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

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

Détails

  • Titre original : A one-dimensional model for compressible oscillatory flow in the regenerator of pulse-tube refrigerators.
  • Identifiant de la fiche : 2007-2410
  • 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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