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수냉식 응축기를 활용한 자동차용 에어컨 시스템 효율 향상에 관한 실험적 연구
최준영(Junyoung Choi),원승식(Seungsik Won),안용남(Yongnam Ahn),신현근(Hyunkeun Shin),왕윤호(Yoonho Wang),김재연(Jaeyeon Kim) 한국자동차공학회 2014 한국자동차공학회 부문종합 학술대회 Vol.2014 No.5
Recently regulations regarding C0₂ emission and fuel economy of automobile are being increased. Accordingly power consumption reduction of Mobile Air-Conditioning system(MAC) has been continuously requested. There have been numerous attempts to use a water-cooled condenser instead of conventional air-cooled condenser in an airconditioning system. This paper describes an experimental results of using water-cooled condenser in air-conditioning system. Using additional water-cooled condenser was the most effective way among numerous water-cooled condenser systems. The water-cooled condenser cools refrigerant from superheated state to a two-phase state and the air-cooled condenser cools from two-phase state to sub cool state. This was named combined cooling condenser system which had both a water cooled condenser and an air cooled condenser. Bench and vehicle test were conducted to verify the effects to reduce power consumption due to decreased discharge pressure of air-conditioning system. By using combined cooling condenser system, A/C efficiency improved about 9.4% over the conventional A/C system.