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Document IIF

Analyse numérique d'un cryorefroidisseur Stirling monobloc.

Numerical analysis of monobloc Stirling cryocooler.

Auteurs : CHEN X., XIA M.

Résumé

A mathematical model of monobloc Stirling cryocooler had been made to simulate its dynamic performance. The coefficients of flow resistance and heat transfer were considered to be variable. The working volume of monobloc Stirling cryocooler was divided into numerous fixed control volumes subjected to a periodic mass flow. The conservation equations of mass, momentum and energy were written for each control volume. A computer program was prepared in MATLAB and Visual C++, and the basic equations were solved iteratively. The mass, temperature and density of working fluid in each control volume were calculated for a given charge pressure, engine speed, and fixed compression and expansion surface temperature, and the results are obtained from a PC. The diagrams of pressure, temperature, and mass flow rate of compression and expansion spaces were given in the result. The P-V diagram and COP of the Stirling-cycle refrigerator were also calculated. The comparison of pressure and cooling power showed acceptable agreement between the simulation and experimental results.

Documents disponibles

Format PDF

Pages : ICR07-A1-178

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 : Numerical analysis of monobloc Stirling cryocooler.
  • Identifiant de la fiche : 2007-2400
  • 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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