基于装配力的燃料电池性能数值解析  

Study on performance of fuel cell based on assembly force

作　　者：曹爱红[1] 王来华[1] 代世勋[1] CAOAihong;WANG Laihua;DAI Shixun(Shandong Labor Vocational and Technical College,Jinan Shandong 250022,China)

机构地区：[1]山东劳动职业技术学院,山东济南250022

出　　处：《电源技术》2021年第7期844-847,901,共5页Chinese Journal of Power Sources

基　　金：产教融合背景下“校企双元、四方联动、六双并举”人才培养模式探索阶段性成果(2020ZC390);企业新型学徒制“企校双制,工学一体”人才培养模式研究阶段性成果(RSJY2020-Z040)。

摘　　要：建立三维、稳态、恒温8通道蛇形流道质子交换膜燃料电池(PEMFC)模型,在研究装配力与扩散层(GDL)厚度、GDL孔隙率、GDL变形对流道的侵入量、GDL与双极板(BP)间的接触电阻的前提下,利用CFD软件分析不同装配力下PEMFC的传质、电化学性能。研究结果表明:装配力能够通过影响GDL厚度、GDL孔隙率、侵入量来影响PEMFC的传质性能与电化学性能(浓差极化);通过影响接触电阻来影响PEMFC的电化学性能(欧姆极化);本研究的最佳装配力为1.0 MPa。A three-dimensional,steady-state and constant temperature model of 8-channel serpentine proton exchange membrane fuel cell was established and the CFD software was used to analyze the mass transfer and electrochemical performance of PEMFC under different assembly forces based on the research of relationship between assembly force and diffusion layer(GDL)thickness,GDL porosity,the intrusion of GDL deformation into the flow passage,and the contact resistance between GDL and bipolar plate(BP).The results show that the assembly force can affect the mass transfer and electrochemical performance(concentration polarization)of PEMFC by affecting GDL thickness,porosity and intrusion for flow channel,and the electrochemical performance(ohmic polarization)of PEMFC by affecting contact resistance.Consequently,the optimal assembly force is 1.0 MPa.

关 键 词：PEMFC 装配力 蛇形流道 孔隙率 侵入量 

分 类 号：TM911.4[电气工程—电力电子与电力传动]