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Performance du R-432A pour remplacer le HCFC-22 dans des conditionneurs d'air et des pompes à chaleur résidentiels.

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

Auteurs : PARK K. J., LEE C. H., JUNG D.

Résumé

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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Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Performance of R-432A to replace HCFC-22 in residential air conditioners and heat pumps.
  • Identifiant de la fiche : 2009-1783
  • Langues : Anglais
  • Source : 2008 Purdue Conferences. 19th International Compressor Engineering Conference at Purdue & 12th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
  • Date d'édition : 14/07/2008

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