Water management along the flow channels of PEM fuel cells

被引:73
作者
Yi, JS [1 ]
Yang, JDL [1 ]
King, C [1 ]
机构
[1] UTC Fuel Cells, S Windsor, CT 06074 USA
关键词
PEM fuel cells; water management; mass transport; flow field; water transport plate;
D O I
10.1002/aic.10307
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Water management is one of the most critical issues for high-performance polymer-electrolyte-membrane (PEM) fuel cells. A water-flux model for vapor and liquid phases along a gas flow channel is developed. The dependency of the operating and design parameters, such as temperature, pressure, gas and liquid flow rate, and size of the fuel cell, on the water management along the flow channel is demonstrated. Issues associated with liquid water and membrane/electrode dry out as well as system water balance are identified. An "intracell" water-exchange method, which can remove or supply water within a cell depending on local demand, is described. This water management scheme effectively minimizes the issues described above. Good cell performance with a high limiting current at low reactant pressure and high reactant utilization is demonstrated with this advanced water management system. (C) 2004 American Institute of Chemical Engineers.
引用
收藏
页码:2594 / 2603
页数:10
相关论文
共 42 条
[1]  
AMAKAWA K, 1986, Patent No. 4615955
[2]   A MATHEMATICAL-MODEL OF THE SOLID-POLYMER-ELECTROLYTE FUEL-CELL [J].
BERNARDI, DM ;
VERBRUGGE, MW .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1992, 139 (09) :2477-2491
[3]   MATHEMATICAL-MODEL OF A GAS-DIFFUSION ELECTRODE BONDED TO A POLYMER ELECTROLYTE [J].
BERNARDI, DM ;
VERBRUGGE, MW .
AICHE JOURNAL, 1991, 37 (08) :1151-1163
[4]  
Bett J.A.S., 1998, US Patent, Patent No. 5840414
[5]   Numerical prediction of mass-exchange between cathode and anode channels in a PEM fuel cell [J].
Dutta, S ;
Shimpalee, S ;
Van Zee, JW .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2001, 44 (11) :2029-2042
[6]   Three-dimensional numerical simulation of straight channel PEM fuel cells [J].
Dutta, S ;
Shimpalee, S ;
Van Zee, JW .
JOURNAL OF APPLIED ELECTROCHEMISTRY, 2000, 30 (02) :135-146
[7]  
Felder R.M., 2020, Elementary Principles of Chemical Processes
[8]   WATER AND THERMAL MANAGEMENT IN SOLID-POLYMER-ELECTROLYTE FUEL-CELLS [J].
FULLER, TF ;
NEWMAN, J .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1993, 140 (05) :1218-1225
[9]   Two-dimensional finite-element method study of the resistance of membranes in polymer electrolyte fuel cells [J].
Futerko, P ;
Hsing, IM .
ELECTROCHIMICA ACTA, 2000, 45 (11) :1741-1751
[10]  
Gottesfeld S, 1997, ADV ELECTROCHEM SCI, V5, P195, DOI DOI 10.1002/9783527616794.CH4