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Development of air refrigeration system “Pascal Air”.

Number: pap. ID: 933

Author(s) : MACHIDA A., BOONE J.

Summary

About 20 years ago it has become evident that fluorocarbon refrigerants being used in food, fishery, agriculture, beverage and dairy industries for industrial freezing/cooling are having a significant impact on global warming and ozone depletion, but drastic measures have not been taken yet. Particular measures for the field of ultra-low temperatures below -50°C are overdue. At present mainly HFC23/HCFC22 vapour compression binary refrigeration systems are used, but according to the terms of the Montreal Protocol, HCFC22 is a regulated substance and its use in new equipment was prohibited by 2010 and will be totally phased out by 2020. HFC23 has an Ozone Depletion Potential ODP of 0 but its large Global Warming Potential GWP of 11700 and the fact that HFC23 is a byproduct formed during the manufacture of HCFC22 indicate that after the abolition of HCFC22, HFC23 will be difficult to obtain. In this context, a refrigeration system “Pascal Air”, was developed using the ultimate natural refrigerant “air”, targeting the field of ultra-low temperature. This paper provides an introduction to the principle and characteristics as well as an introduction example in the field of an air refrigeration system “Pascal Air”.

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Pages: 9 p.

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Details

  • Original title: Development of air refrigeration system “Pascal Air”.
  • Record ID : 30001669
  • Languages: English
  • Source: Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
  • Publication date: 2011/08/21

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