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Etude fondamentale sur un nouveau système cryogénique faisant appel à l'écoulement du CO2 diphasique solide/gaz.

Basic study on new cryogenic refrigeration using CO2 solid-gas two phase flow.

Auteurs : YAMAGUCHI H., ZHANG X. R., FUJIMA K.

Type d'article : Article, Article de la RIF

Résumé

In this paper, a cryogenic refrigeration method is described, which uses CO2 solid-gas two phase flow and the dry ice. The CO2 solid-gas two phase flow is achieved by expanding liquid CO2 and thus refrigeration process less than CO2 triple point -56.6 °C can be available. The experimental work is divided into two parts and two experimental set-ups were designed, constructed and tested. The interest of the first experiment test is the feasibility of expanding liquid CO2 into CO2 solid-gas flow in a horizontal circular tube by expansion valve. The second experiment focuses on the feasibility of the refrigeration of liquid CO2 expanding into solid-gas two phase flows used in a prototype CO2 heat pump system. The results show that solid-gas two phase flows can be achieved by expanding liquid CO2 by expansion valve in a closed CO2 heat pump system loop and low temperature refrigeration below -56.6°C is achieved in the experiments, which give greater possibility to create a cryogenic refrigeration process below -56.6°C for food industries, bio-medical engineering, etc.

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Format PDF

Pages : 404-410

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    20 €

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Détails

  • Titre original : Basic study on new cryogenic refrigeration using CO2 solid-gas two phase flow.
  • Identifiant de la fiche : 2008-0468
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 31 - n. 3
  • Date d'édition : 05/2008

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