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Experimental studies on fast cool-down mixed refrigerant cascade refrigerators.

Author(s) : VENKATARATHNAM G., KUMAR P. S., SRINIVASA MURTHY S.

Summary

Mixed refrigerant cascade refrigerators, also known as J-T refrigerators operating with gas mixtures, have been under development in the authors' laboratory since 1998. Working pressures close to those in a HCFC-22 system can be used to provide refrigeration at temperatures as low as 80 K. In this paper, the results obtained with different heat exchangers and mixtures are presented. The exergy efficiency varied from about 0.5 to 5%. The time required for cool down varied between 1 to 3 hours depending on the hardware configuration and the mixtures used.

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Details

  • Original title: Experimental studies on fast cool-down mixed refrigerant cascade refrigerators.
  • Record ID : 2004-1041
  • Languages: English
  • Source: 21st IIR International Congress of Refrigeration: Serving the Needs of Mankind.
  • Publication date: 2003/08/17

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