PEMFC temperature distribution caused by inhomogeneous compression of GDL

被引:46
作者
Hottinen, Tero [1 ]
Himanen, Olli [1 ]
机构
[1] Helsinki Univ Technol, Lab Adv Energy Syst, Helsinki 02015, Finland
基金
芬兰科学院;
关键词
PEMFC; modeling; temperature distribution; gas diffusion layer; inhomogeneous compression; contact resistance;
D O I
10.1016/j.elecom.2006.12.018
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The effect of inhomogeneous compression of GDL under the channel/rib structure of flow-field plate on the temperature distribution in PEMFC is studied. The model utilizes experimentally evaluated GDL parameters for mass and charge transfer, and assumes an analogy between heat and charge transfer. The modeling results are compared with a conventional model that assumes the GDL properties constant. As a result, a significant difference in temperature distributions is observed especially due to varying thermal contact resistance at the GDL/electrode interface when the inhomogeneous compression is taken into account. There are significant temperature gradients through the cell and also in lateral direction of the electrode. With the assumed heat transfer parameters temperature differences of over 15 degrees C can be observed within a unit cell. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:1047 / 1052
页数:6
相关论文
共 8 条
[1]   Effect of gas diffusion layer compression on PEM fuel cell performance [J].
Ge, Jiabin ;
Higier, Andrew ;
Liu, Hongtan .
JOURNAL OF POWER SOURCES, 2006, 159 (02) :922-927
[2]   Characterization of membrane electrode assembly with hydrogen-hydrogen cell and ac-impedance spectroscopy - Part I. Experimental [J].
Himanen, Olli ;
Hottinen, Tero ;
Mikkola, Mikko ;
Saarinen, Ville .
ELECTROCHIMICA ACTA, 2006, 52 (01) :206-214
[3]  
HOTTINEN T, IN PRESS J POWER SOU
[4]   ANALYSIS OF FREE-ENERGY AND ENTROPY CHANGES FOR HALF-CELL REACTIONS [J].
LAMPINEN, MJ ;
FOMINO, M .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1993, 140 (12) :3537-3546
[5]   The effects of compression and gas diffusion layers on the performance of a PEM fuel cell [J].
Lee, WK ;
Ho, CH ;
Van Zee, JW ;
Murthy, M .
JOURNAL OF POWER SOURCES, 1999, 84 (01) :45-51
[6]  
NITTA I, IN PRESS J POWER SOU
[7]   An improved two-dimensional agglomerate cathode model to study the influence of catalyst layer structural parameters [J].
Sun, W ;
Peppley, BA ;
Karan, K .
ELECTROCHIMICA ACTA, 2005, 50 (16-17) :3359-3374
[8]   Thermal conductivities from temperature profiles in the polymer electrolyte fuel cell [J].
Vie, PJS ;
Kjelstrup, S .
ELECTROCHIMICA ACTA, 2004, 49 (07) :1069-1077