Evaluation of methods to increase the oxygen partial pressure in PEM fuel cells

被引：18

作者：

Boyer, C ^{[1
]}

Gamburzev, S ^{[1
]}

Appleby, AJ ^{[1
]}

机构：

[1] Texas A&M Univ, Ctr Electrochem Syst & Hydrogen Res, College Stn, TX 77843 USA

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 1999年 / 29卷 / 09期

关键词：

fuel cell; model; oxygen enrichment; pressure; stoichiometry;

D O I：

10.1023/A:1003621024245

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

This paper compares the performance of a hydrogen-air fuel cell system with the oxygen electrode operating under different conditions of pressure, stoichiometry and oxygen enrichment. This paper shows that the net power density can be improved using a pressurized or oxygen enrichment system when the oxygen electrode is limited by oxygen mass transfer. If the current density is determined by kinetics, then the ambient pressure system has a higher net power density at the same fuel efficiency.

引用

页码：1095 / 1102

页数：8

共 10 条

[1] MATHEMATICAL-MODEL OF A GAS-DIFFUSION ELECTRODE BONDED TO A POLYMER ELECTROLYTE [J].

BERNARDI, DM ;

VERBRUGGE, MW .

AICHE JOURNAL, 1991, 37 (08) :1151-1163

[2] 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

[3]

GAMBURZEV S, 1996, 190 M EL SOC

[4] MECHANISM OF OPERATION OF TEFLON-BONDED GAS DIFFUSION ELECTRODE - A MATHEMATICAL MODEL [J].

GINER, J ;

HUNTER, C .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1969, 116 (08) :1124-&

[5] Simulations of PEFC cathodes: an effectiveness factor approach [J].

Gloaguen, F ;

Durand, R .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 1997, 27 (09) :1029-1035

[6] TPX SILOXANE BLEND MEMBRANE FOR OXYGEN ENRICHMENT [J].

LAI, JY ;

WU, GJ .

JOURNAL OF APPLIED POLYMER SCIENCE, 1987, 34 (02) :559-569

[7] INTERNAL OHMIC DROP LIMITS ON EFFECTIVENESS OF PACKED-BED ELECTRODES OBEYING TAFEL KINETICS [J].

LYKE, SE ;

LANGER, SH .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1991, 138 (08) :2327-2330

[8]

MUHOVSKII J, 1981, BULGARIAN AC SCI CHE, V14, P355

[9] MODELING AND EXPERIMENTAL DIAGNOSTICS IN POLYMER ELECTROLYTE FUEL-CELLS [J].

SPRINGER, TE ;

WILSON, MS ;

GOTTESFELD, S .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1993, 140 (12) :3513-3526

[10]

WILSON MS, 1995, ELECTROCHIM ACTA, V40, P355, DOI 10.1016/0013-4686(94)00272-3

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