The use of phase-change cooling strategy in proton exchange membrane fuel cells:A numerical study  

作　　者：YAN XiaoHui PENG YiMeng SHEN YuanTing SHEN ShuiYun WEI GuangHua YIN JieWei ZHANG JunLiang 

机构地区：[1]Institute of Fuel Cells,School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China [2]MOE Key Laboratory of Power Machinery and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China [3]SJTU-Paris Tech Elite Institute of Technology,Shanghai Jiao Tong University,Shanghai 200240,China

出　　处：《Science China(Technological Sciences)》2021年第12期2762-2770,共9页中国科学（技术科学英文版）

基　　金：the National Key Research and Development Program of China(Grant No.2016YFB0101312);the National Natural Science Foundation of China(Grant No.21706158)。

摘　　要：Thermal management is considered a critical issue in proton exchange membrane fuel cells(PEMFCs),since it not only influences the cell performance but also impacts PEMFC’s reliability and durability.With the ever-increasing power density of PEMFC,traditional cooling approaches including air cooling and water cooling become difficult to meet the demand for highpower heat dissipation.Therefore,phase-change cooling is proposed for fuel cell application in this work,and the potential advantages are discussed and demonstrated via a mathematical model incorporating phase-change heat transfer.The thermal management performance is evaluated by temperature uniformity,maximum temperature difference,and the cooling capacity to compare the difference between phase-change cooling and traditional methods,which demonstrates that phase-change cooling owns a greatly improved thermal management performance.In addition,a simple method to broaden the operating temperature of phase-change cooling based on one certain coolant is offered,which is pressurizing in the coolant channel to regulate the boiling temperature that could further improve the application feasibility of phase-change cooling strategy in fuel cells.

关 键 词：PEMFC thermal management cooling method temperature distribution phase-change cooling 

分 类 号：TM911.4[电气工程—电力电子与电力传动]