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Document IIF

Etude sur un réfrigérateur Stirling muni d'un tube servant de tampon thermique et d'un compresseur lubrifié à l'huile.

Investigation on a Stirling refrigerator with thermal buffer tube driven by an oil-lubricated compressor.

Auteurs : WU Z., LI S., LUO E.

Type d'article : Article, Article de la RIF

Résumé

In this article, a special configuration of Stirling refrigerator for domestic refrigeration purpose is introduced. A thermal buffer tube is installed between the refrigerator cold-end and the expansion piston to improve the system reliability by moving the expansion piston from low temperature to ambient temperature. Furthermore, a commercial oil-lubricated dual-piston compressor is modified to drive the refrigerator, inside which an elastic membrane is used to transfer acoustic work and separate the working gas of the refrigerator from that of the compressor. Experimental investigations on the refrigerator are performed using helium as the working fluid and a cooling power of 200 W at -78°C is achieved at 15 Hz working frequency and 2.5 MPa mean pressure. Meanwhile, a rough estimation of the refrigerator COP in terms of cooling power divided by input acoustic power gives the value of 0.64. It gives the possibility of building a low-cost, high efficiency domestic refrigerator.

Documents disponibles

Format PDF

Pages : 1460-1465

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 : Investigation on a Stirling refrigerator with thermal buffer tube driven by an oil-lubricated compressor.
  • Identifiant de la fiche : 2008-0247
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 30 - n. 8
  • Date d'édition : 12/2007

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