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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)
Publication Information
International Journal of Air-Conditioning and Refrigeration / v.11, no.3, 2003 , pp. 140-149 More about this Journal
Abstract
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.
Keywords
Coefficient of performance; GWP; ODP; Automobile air-conditioners;
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