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An analytical screening of alternatives for R502 in low-temperature refrigerating applications.

Author(s) : FISCHER S. K.

Summary

Several refrigerant mixtures have been identified that are promising alternatives to R502 in both new and existing low-temperature refrigerating systems. This preliminary analytical evaluation shows that they should exhibit comparable properties with R502 with regard to their operating efficiency, compressor discharge temperature, flammability, pressure ratio, and volumetric capacity. These conclusions are based only on calculations from the existing property data. Further work needs to be done, primarily in the laboratory, to support or refute the findings from this screening study. The work should be focused on R32 and R125, both as pure compounds and in binary mixtures with R22 and in ternary blends with R22, and either R134a or R134.

Details

  • Original title: An analytical screening of alternatives for R502 in low-temperature refrigerating applications.
  • Record ID : 1993-2493
  • Languages: English
  • Source: ASHRAE Transactions 1992. Part 2.
  • Publication date: 1992
  • Document available for consultation in the library of the IIR headquarters only.

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