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Trials with zeotropic refrigerants as replacements for R22 in an instrumented glycol-water chiller.

Author(s) : CORR S., GILBERT B., DEKLEVA T., LOW R., MURPHY F. T., DAVIES G.

Summary

A large number of measurements taken from an instrumented glycol-water process chiller are summarized for R22 and a number of zeotropic refrigerant blends. The range of materials used in the study includes 2 zeotropic binary blends of R32-R134a (30-70 and 25-75), and 2 zeotropic ternary blends of R32-R125-R134a (30-10-60 and 23-25-52). The information covers the evaporator temperature range -20 to 5 deg C and condenser range 27 to 41 deg C. Results include COP, capacity and discharge temperature for the chiller running on R22-mineral oil and HFC refrigerant blend-polyolester lubricant combinations. Over the temperature range of test, the HFC blends show comparable COP and capacity to R22 while exhibiting lower discharge temperatures.

Details

  • Original title: Trials with zeotropic refrigerants as replacements for R22 in an instrumented glycol-water chiller.
  • Record ID : 1995-0763
  • Languages: English
  • Source: Proceedings of the 1994 International Refrigeration Conference at Purdue.
  • Publication date: 1994/07/19
  • Document available for consultation in the library of the IIR headquarters only.

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