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Document IIF

Intégration d'une turbine à détente triétagée dans un système frigorifique au CO2.

Integration of a three-stage expander into a CO2 refrigeration system.

Auteurs : NICKL J., WILL G., QUACK H., et al.

Type d'article : Article, Article de la RIF

Résumé

The inclusion of an expander with work recovery provides two advantages for transcritical CO2 refrigeration cycles: the COP is improved and the exhaust pressure of the main compressor is lowered. Several designs of expanders have been proposed for this application and some prototypes have been tested already. In our laboratory a three-stage expander has been developed, which replaces the throttle valve of the normal refrigeration cycle and expands into the two-phase region. For optimum integration into the overall system it is proposed to install a vapour-liquid separator between the second and third stage of expansion. The vapour is guided back to the third expander stage whereas the liquid is supplied to the cooling stations via thermostatic or electronic expansion valves.

Documents disponibles

Format PDF

Pages : 1219-1224

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 : Integration of a three-stage expander into a CO2 refrigeration system.
  • Identifiant de la fiche : 2006-0726
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 28 - n. 8
  • Date d'édition : 12/2005

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