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이헌균(Heonkyun Lee),봉선우(Seonwoo Bong),허형석(Hyungseok Heo),권혁주(Hyuckju Kwon),한정명(Jungmyeongn Han) 한국자동차공학회 2017 한국자동차공학회 부문종합 학술대회 Vol.2017 No.5
Reducing engine warming up time is one of the best way to improve fuel economy. High viscosity at low temperature of ATF oil takes up energy loss in a automatic transmission system and deteriorates gas mileage. An ATF heat exchanger reduces engine warming up time by elevating the ATF temperature quickly and regulates the temperature appropriately to ensure lubricating characteristics by heat transfer between the coolant and ATF. In this study, the heat transfer characteristics of the plate type ATF heat exchanger is analyzed by the computational fluid dynamic method. The influence on heat transfer characteristics have been investigated with respect to various design parameters of the heat transfer fin.
냉각수 제어 밸브 일체형 ATF 열교환기 적용이 연비에 미치는 영향에 대한 연구
이헌균(Heonkyun Lee),봉선우(Seonwoo Bong),권혁주(Hyuckju Kwon),한정명(Jungmyeongn Han),정진규(Jinkyu Jung) 한국자동차공학회 2018 한국자동차공학회 부문종합 학술대회 Vol.2018 No.6
An ATF heat exchanger reduces transmission warming up time by elevating the ATF temperature quickly and regulates the temperature appropriately to ensure lubricating characteristics by heat transfer between the coolant and ATF. In another aspect, heat transfer from the coolant to the ATF causes insufficient energy to heat the cabin. In this study, the heat transfer characteristics of the plate type ATF heat exchanger is analyzed. the flow pattern of Coolant control valve is analyzed by the computational fluid dynamic method. The influence on fuel economy vehicles With a plate type ATF heat exchanger integrating a coolant control valve have been investigated.