建立车载质子交换膜燃料电池（PEMFC）辅助散热系统数学模型,进行某客车PEMFC发动机辅助散热系统的管路连接方式设计,对管路流阻、冷却液流量及其温升进行分析并开展试验对数学模型进行验证。结果表明：数学模型准确可靠且可用于设计和优选PEMFC辅助散热系统的管路连接方案,相同总冷却液流量下（空压机控制器-空压机本体）||（降压DCDC-升压DCDC）||（氢泵控制器）的三路并联方案的总流阻较（氢泵控制器-空压机控制器-空压机本体）||（降压DCDC-升压DCDC）的两路并联方案降低40.7%,各分支管路的冷却液流量均满足部件散热要求,冷却液温升满足整车散热要求。
Abstract
The mathematical model of the auxiliary heat dissipation system for vehicle PEMFC is established, and the pipeline connection modes of the auxiliary heat dissipation system for the PEMFC engine system of a vehicle are designed. The flow resistance of the pipeline, coolant flow rate and coolant temperature rise are analyzed, and experiment is carried out to verify the mathematical model. The results show that the mathematical model is accurate and reliable which can be used to design and optimize the pipeline connection mode of PEMFC auxiliary heat dissipation system. Under the same total coolant flow rate, the total flow resistance of the pipeline of the three-way parallel solution （air compressor controller - air compressor ontology） || （step-down DCDC- booster DCDC） || （hydrogen pump controller） is 40.7% lower than that of the two-way parallel solution （hydrogen pump controller - air compressor controller - air compressor ontology） || （step-down DCDC- booster DCDC）. The coolant flow rate of each branch pipeline meets the heat dissipation requirements of components, and the temperature rise of the coolant also meets the heat dissipation requirements of the vehicle.
关键词
质子交换膜燃料电池 /
热管理 /
建模 /
辅助散热 /
系统设计 /
流阻
Key words
proton exchange membrane fuel cell /
thermal management /
modeling /
auxiliary heat dissipation /
system design /
flow resistance
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基金
四川省重大科技专项（氢燃料电池客车及关联产业关键技术研究与示范）（2019ZDZX0002）
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