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R-152a와 R-429A를 이용한 자동차용 A/C 시스템 성능에 관한 실험적 연구
이근태(Keuntae Lee),이홍열(Hongyeol Lee),이원석(Wonsuk Lee),서춘호(Chunho Seo),정동수(Dongsoo Jung) 한국자동차공학회 2008 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The industry have to the other friendly-environmental refrigerants that have zero ODP and lower GWP(>150) because the using of HFC-134a(GWP : 1300) is gradually banned by global warming effect. As one of alternative refrigerants, R-152a(GWP: 140) and R-429A(GWP: 14) are currently satisfied. So, The main purpose of this study is experimentally investigated the possibilities of R-429A and R-152a as working fluids in automotive air conditioning except for inflammability. The experimental apparatus has basic parts of cycle that use automotive air conditioning system and Lise the pipe of Currently existing lay-out. The test results show that refrigeration capacity and Coefficient of performance of R-429A and R-152a is same or higher than that of R-134a. and R-429A is best refrigerants in this paper. In conclusion of this study, it is possible that R-429A and R152a refrigerants could be drop-in refrigerant for HFC-134a in automotive air conditioning system from performance of view. but, to choice alternative refrigerant, inflammability problem have to investigate in detail.