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Performance of R-432A to replace HCFC-22 in residential air conditioners and heat pumps.

Author(s) : PARK K. J., LEE C. H., JUNG D.

Summary

In this study, thermodynamic performance of R-432A and HCFC-22 is measured in a heat pump bench tester under both air conditioning and heat pumping conditions. R-432A has no ozone depletion potential and very low greenhouse warming potential of less than 5. R-432A also offers a similar vapour pressure to that of HCFC-22 for 'drop-in' replacement. Test results showed that the coefficient of performance and capacity of R-432A are 8.5-8.7 and 1.9-6.4% higher than those of HCFC-22 for both conditions. The compressor discharge temperature of R-432A is 14.1-17.3°C lower than that of HCFC-22 while the amount of charge for R-432A is 50% lower than that of HCFC-22 due to its low density. Overall, R-432A is a good long term 'drop-in' environmentally friendly alternative to replace HCFC-22 in residential air conditioners and heat pumps due to its excellent thermodynamic and environmental properties.

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Details

  • Original title: Performance of R-432A to replace HCFC-22 in residential air conditioners and heat pumps.
  • Record ID : 2009-1783
  • Languages: English
  • Source: 2008 Purdue Conferences. 19th International Compressor Engineering Conference at Purdue & 12th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
  • Publication date: 2008/07/14

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