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Performance du frigorigène R152a dans un système de conditionnement d'air automobile.

The performance of refrigerant R152a in an automotive air-conditioning system.

Auteurs : SHIN J. S., PARK W. G., KIM M. H.

Résumé

One of the most promising replacements for R134a of the automobile air-conditioning system seems to be R152a as a long-term alternative. R152a shows much less global warming potential and has better thermodynamic and transport properties. This study presents test results of an automotive air-conditioning system using R134a and a potential alternative refrigerant, R152a. A series of performance tests have been carried out and cycle characteristics such as cooling capacity, energy efficiency ratio, suction and discharge pressures, and temperatures are presented, compared to those for the baseline R134a system. Tests were conducted with evaporation temperature of 5°C, condensation temperature of 45°C, subcooling temperature of 5°C, superheating temperature of 5°C, and compressor speed of 500-1500 rpm. The system performance of R152a with readjustment of an expansion valve showed better than those of R134a.

Détails

  • Titre original : The performance of refrigerant R152a in an automotive air-conditioning system.
  • Identifiant de la fiche : 2006-2041
  • Langues : Anglais
  • Source : ICERD-3. Third International Conference on Energy Research and Development [2 volumes + CD-ROM].
  • Date d'édition : 21/11/2005

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