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Analysis and optimization of a fuel cell-powered multi-purpose vehicle based on three-dimensional thermal management

文献类型： 外文期刊

作者： Wang, Chao 1 ; Yin, Chunshan 2 ; Ma, Qingfen 1 ; Wu, Zhongye 1 ; Wang, Shiying 2 ; Chen, Feng 2 ; Lu, Hui 3 ;

作者机构： 1.Hainan Univ, Coll Mech & Elect Engn, Haikou 570228, Hainan, Peoples R China

2.Hainan Haima Automobile Co Ltd, Haikou 570216, Hainan, Peoples R China

3.Chinese Acad Trop Agr Sci, Inst Environm & Plant Protect, Haikou 571101, Hainan, Peoples R China

期刊名称：JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY （ 影响因子：1.9； 五年影响因子：2.3 ）

ISSN： 1941-7012

年卷期： 2025 年 17 卷 4 期

页码：

收录情况： SCI

摘要： This study addresses the thermal management and engine compartment optimization of a hydrogen fuel cell multi-purpose vehicle through three-dimensional simulations. A computational fluid dynamics model for the heat dissipation in the engine compartment was developed based on the original design of the vehicle model, and the cooling components (main radiator, secondary radiator, and cooling fan) were validated with experimental data. Under idle and high-speed conditions, the simulated results of heat dissipation in the engine compartment agreed well with the test data, indicating good reliability. Simulation results also revealed significant thermal issues, including severe heat recirculation under idle conditions and reduced air utilization efficiency at high speeds. To mitigate these issues, optimization strategies were proposed through adjusting internal arrangements and modifying external structures. After optimization, temperatures on the main radiator and secondary radiator surfaces were reduced by 7.1% and 2.1%, and airflow through the main radiator and secondary radiator were increased by 22.85% and 16.1% with airflow utilization efficiency enhanced by 38%. Additionally, the driving resistance and the drag coefficient were also reduced by 21% x 10.8%, indicating smoother airflow outside the engine compartment. This approach provides a valuable methodology for thermal management and future optimization of a hydrogen fuel cell vehicle.

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