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

Author(s) : YAMAGUCHI H., ZHANG X. R., FUJIMA K.

Type of article: Article, IJR article

Summary

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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Pages: 404-410

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Details

  • Original title: Basic study on new cryogenic refrigeration using CO2 solid-gas two phase flow.
  • Record ID : 2008-0468
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 31 - n. 3
  • Publication date: 2008/05

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