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논문 기본 정보

자료유형
학술대회자료
저자정보
이현석 (한국자동차연구원) 배석정 (한국자동차연구원) 허형석 (한국자동차연구원) 김경엽 (지엠비코리아)
저널정보
한국자동차공학회 한국자동차공학회 춘계학술대회 2024 한국자동차공학회 춘계학술대회
발행연도
2024.6
수록면
1,157 - 1,161 (5page)

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초록· 키워드

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Large commercial vehicles require long mileage due to their characteristics. Fuel cell electric vehicles are relatively advantageous compared to battery electric vehicles as they can store a lot of energy in a limited space. Fuel cell electric commercial vehicles have a complex system structure, and many studies are being conducted to improve the efficiency and mileage of this system. For thermal management of fuel cell electric commercial vehicles, this study designed a cooling circulation system layout that organically connects water pumps, multi-way valves, and heat exchangers, which are common components of the cooling circulation system, and analyzed the flow resistance of each common component and the system"s flow resistance. In order to analyze the system flow resistance, an analysis model was selected centering on the multi-way valve. Since the multi-way valve"s flow path structure changes according to the driving mode, the flow rate distribution characteristics were analyzed for each valve opening condition. The shape of the flow resistor of the common element components was simplified and modeled, and the analysis was performed by reflecting the flow resistance through the porous medium technique. The flow resistance of the cooling circulation system was relatively large as the flow cross-sectional area was the smallest under the conditions of 40˚ and 70˚ valve opening angles. The flow resistance was relatively low under the conditions of valve opening angles of 50° and 60° where the flow paths on both sides were opened at the same level. This study is considered to be useful when designing a common circulation system to understand the overall flow resistance of the system by combining each common element component as well as the cooling circulation system for fuel cell electric commercial vehicles.

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Abstract
1. 서론
2. 냉각순환 시스템 해석 방법
3. 밸브 조건별 유량 분배율 특성 분석
4. 결론
References

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