质子交换膜燃料电池散热优化及废热一储氢系统耦合

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关键词：质子交换膜燃料电池(PEMFC)；金属氢化物储氢反应器；输出特性；耦合系统；废热利用中图分类号：TM911.4 文献标识码：A DOI:10.3969/j.issn.1674-8484.2025.06.010

Optimization of heat dissipation in proton exchange membrane fuel cells and coupling of waste heat-hydrogen storage system

LANG Dongyu1,BAO Gang1,ZHANG Shu²,YU Zhenyu²,SUNJiahong²,XIE Huaqing*2 (1.ShenyangInstituteofpecialEqupmentIspectionndReearch,yang,oo35,Cina; 2.NortheasternUniversity,SchoolofMetallurgy,henyanglo819,China)

Abstract: In order to reduce the impact of waste heat on performance in the operation of proton exchange membrane fuel cels (PEMFCs)and to improve energy utilization eficiencyduring the operation of the PEMFC, thenumerical optimizations of PEMFC's outputcharacteristics and cooling conditions were caried out based onthetraditional single direct current coolingchannel,witha thermal coupling model being established between PEMFC and metal hydride hydrogen storage reactor.The results show that PEMFC achieves an output of 561.2 W under the operating conditions of 333K and ；the optimal cooling conditions, where the heat generatedby the fuel cellcan fully drive hydrogen release from the hydrogen storage reactor,arean inletwater temperature of 330K anda flow rate of 15cm/s .The system operates stably, the temperature of the hydrogen storage tank is maintained at 314K, and the total powersupplyreaches 0.78 kWh during the period from334sto3615s.Therefore,optimizing theoperating parameters of PEMFC enables eficient thermal coupling between the power generation and hydrogen storage systems.

Key words: proton exchange membrane fuel cels (PEMFCs); metal hydride hydrogen storage reactors;output characteristics; coupling systems;waste heat utilization

质子交换膜电池(proton exchangemembrane fuelcell，PEMFC)作为新能源汽车的动力来源，其自身性能优化与系统开发的相关研究备受关注，例如车载PEMFC发动机系统关键参数的灵敏度测试与分析[，新型车载储能系统的设计[2]等。（剩余16962字）