A Study on the Characteristics an Azeotropic Mixture Combined with CF_{3}I and a Refrigerant for Air-Conditioner HFC-152a and HFC-152a

  • Lee, Jong-In (Department of Automobile Engineering, Chosun College of Science) ;
  • Kwon, Il-Wook (Department of Mechanical Engineering, Chosun University) ;
  • Ha, Ok-Nam (Department of Mechanical Engineering, Chosun University)
  • Published : 2003.09.01


In these days, environmental concerns have been increased throughout the industry and community worldwide. To prevent the ozone depletion, ozone depletion potential of a refrigerant must be zero. Simultaneously, a refrigerant with low GWP (global warming potential) is very demanding to reduce green house effect. Chlorine-free HFC-l34a is a refrigerant widely used for automotive air-conditioning system because its destruction potential is ecologically zero. Although HFC-l34a has no ozone depletion potential, its global warming potential is so high that it is not considered as a perfect alternative refrigerant that is acceptable for long-term use. In this paper, experimental measurement has been carried out to analyze the performance characteristics of automotive air-conditioning system using HFC-152a, which has low GWP and zero ODP. Also mixed refrigerant that is composed of HFC-152a and $CF_3$ was applied to investigate an alternative possibility for the automotive air-conditioning system. As a result of this study, we could draw following conclusions; With respect to the variation of the rotational speed of compressor, outside air temperature and flow rate, the heat amount of evaporator and compressor and performance coefficient was varied.



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