Modeling and sensitivity analysis of high temperature PEM fuel cells by using Comsol Multiphysics
Modeling and sensitivity analysis of high temperature PEM fuel cells by using Comsol Multiphysics
复制标题
DOI：
10.1016/j.ijhydene.2016.03.142
复制
发表时间：
2016-06-22
影响因子：
7.2
通讯作者：
Eroglu, Inci
中科院分区：
文献类型：
--
作者：
Sezgin, Berna;Caglayan, Dilara Gulcin;Eroglu, Inci
本研究的目的是观察高温PEM燃料电池的关键设计参数，入口气体（氢气和空气）的速度和聚合物膜的导电性，对性能的影响。为了研究这些参数的影响，开发了一个一致的和系统的数学模型。该模型被施加到一个等温的，稳态的，三维PEM燃料电池，以观察浓度分布，电流密度分布和极化曲线。该模型包括气体在阳极和阴极气体流动通道中的传输，在催化剂层中的扩散，水和水合氢离子在聚合物电解质和催化剂层中的传输，以及电流在固相中的传输。该模型被认为是有一个单一的流动通道。该模拟是通过使用授权的Comsol Multiphysics 5.0燃料电池和电池模块进行的。结果比较好的欧姆和激活区在160 ℃下获得的实验极化数据。当氢气入口速度为0.133 m/s，空气入口速度为1.3 m/s时，质子电导率为10 S/m，得到了与实验数据的最佳匹配。(C)2016年氢能出版有限责任公司。由爱思唯尔有限公司出版。保留所有权利。
The objective of this study is to observe the effect of the critical design parameters, velocities of inlet gases (hydrogen and air) and the conductivity of polymer membrane, on the performance of a high temperature PEM fuel cell. A consistent and systematic mathematical model is developed in order to study the effect of these parameters. The model is applied to an isothermal, steady state, three-dimensional PEM fuel cell in order to observe concentration profiles, current density profiles and polarization curves. The model includes the transport of gases in anode and cathode gas flow channels, diffusion in the catalyst layers, the transport of water and hydronium ion in the polymer electrolyte and in the catalyst layers, and the transport of electrical current in the solid phase. The model is considered as having a single flow channel. The simulation is performed by using licensed Comsol Multiphysics 5.0, Fuel Cells &Batteries Module. The results compare well with the experimental polarization data obtained at 160 degrees C for ohmic and activation regions. The best match with the experimental data is obtained when the inlet hydrogen gas velocity is 0.133 m/s whereas inlet air velocity is 1.3 m/s for proton conductivity of 10 S/m. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.