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Performance expérimentale du R432A pour remplacer le R22 dans des conditionneurs d'air et des pompes à chaleur résidentiels.

Experimental performance of R432A to replace R22 in residential air conditioners and heat pumps.

Auteurs : PARK K. J., SHIM Y. B., JUNG D.

Type d'article : Article

Résumé

In this study, thermodynamic performance of R432A and HCFC-22 is measured in a heat pump bench tester under both air-conditioning and heat pumping conditions. R432A has no ozone depletion potential and very low greenhouse warming potential of less than 5. R432A also offers a similar vapour pressure to HCFC-22 for 'drop-in' replacement. Test results showed that the coefficient of performance and capacity of R432A are 8.5-8.7% and 1.9-6.4% higher than those of HCFC-22 for both conditions. The compressor discharge temperature of R432A 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, R432A is a good long term 'dropin' environmentally friendly alternative to replace HCFC-22 in residential air-conditioners and heat pumps due to its excellent thermodynamic and environmental properties. [Reprinted with permission from Elsevier. Copyright, 2008].

Détails

  • Titre original : Experimental performance of R432A to replace R22 in residential air conditioners and heat pumps.
  • Identifiant de la fiche : 2009-0537
  • Langues : Anglais
  • Source : Applied Thermal Engineering - vol. 29 - n. 2-3
  • Date d'édition : 02/2009

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