Novel gas distributors and optimization for high power density in fuel cells

被引：29

作者：

Li, PW ^{[1
]}

Chen, SP ^{[1
]}

Chyu, MK ^{[1
]}

机构：

[1] Univ Pittsburgh, Dept Mech Engn, Pittsburgh, PA 15261 USA

来源：

JOURNAL OF POWER SOURCES | 2005年 / 140卷 / 02期

关键词：

novel gas distributors; high power density; fuel cells; optimization;

D O I：

10.1016/j.jpowsour.2004.08.031

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A novel gas distributor for fuel cells is proposed. It has three-dimensional current-collecting elements distributed in gas-delivery, fields- for effective current collection and heat/mass transfer enhancement. An analysis model has been developed in order to understand the performance of the output power density when the dimensions and distributive arrangement of the current collectors are different. Optimization analysts for a planar-type SOFC was conducted in order to outline the approach in optimizing a gas-delivery field when adopting three-dimensional current-collecting elements in a fuel cell. Experimental test of a proton exchange membrane (PEM) fuel cell adopting the novel gas distributor was conducted for verification of the new approach. Significant improvement of power output was obtained for the proposed new PEM fuel cells compared to the conventional ones under the same conditions except for the different gas distributors. Both the experimental ressults and modeling analysis are of great significance to the design of fuel cells of high power density.(C) 2004 Elsevier B.V. All rights reserved.

引用

页码：311 / 318

页数：8

共 20 条

[1]

AMAHA YS, 2004, ASME FUEL CELL SCI E, P39

[2]

BAE JM, 2004, ASME FUEL CELL SCI E, P39

[3] Operating proton exchange membrane fuel cells without external humidification of the reactant gases - Fundamental aspects [J].

Buchi, FN ;

Srinivasan, S .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (08) :2767-2772

[4] A complete polarization model of a solid oxide fuel cell and its sensitivity to the change of cell component thickness [J].

Chan, SH ;

Khor, KA ;

Xia, ZT .

JOURNAL OF POWER SOURCES, 2001, 93 (1-2) :130-140

[5]

CHYU MK, 1996, P 1996 INT GAS TURB

[6] The current voltage plot of PEM fuel cell with long feed channels [J].

Dohle, H ;

Kornyshev, AA ;

Kulikovsky, AA ;

Mergel, J ;

Stolten, D .

ELECTROCHEMISTRY COMMUNICATIONS, 2001, 3 (02) :73-80

[7] 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

[8] Effect of membrane characteristics and humidification conditions on the impedance response of polymer electrolyte fuel cells [J].

Freire, TJP ;

Gonzalez, ER .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2001, 503 (1-2) :57-68

[9] 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

[10] EVALUATION OF A NEW SOLID OXIDE FUEL-CELL SYSTEM BY NONISOTHERMAL MODELING [J].

HIRANO, A ;

SUZUKI, M ;

IPPOMMATSU, M .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1992, 139 (10) :2744-2751

← 1 2 →