Effect of the anisotropic thermal conductivity of GDL on the performance of PEM fuel cells

被引：31

作者：

Alhazmi, N. ^{[1
]}

Ingham, D. B. ^{[1
]}

Ismail, M. S. ^{[1
]}

Hughes, K. J. ^{[1
]}

Ma, L. ^{[1
]}

Pourkashanian, M. ^{[1
]}

机构：

[1] Univ Leeds, Ctr Computat Fluid Dynam, Energy Technol Innovat Initiat, Leeds LS2 9JT, W Yorkshire, England

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2013年 / 38卷 / 01期

关键词：

PEM fuel cells; Gas diffusion layers; Through-plane thermal conductivity; In-plane thermal conductivity; TRANSPORT;

D O I：

10.1016/j.ijhydene.2012.07.007

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：

Gas diffusion layers (GDLs) are one of the main components in proton exchange membrane (PEM) fuel cells. In this paper, the effect of anisotropic thermal conductivity of the GDL is numerically investigated under different operating temperatures. Furthermore, the sensitivity of the PEM fuel cell performance to the thermal conductivity of the GDL is investigated for both in-plane and through-plane directions and the temperature distributions between the different GDL thermal conductivities are compared. The results show that increasing the in-plane and through-plane thermal conductivity of the GDL increases the power density of PEM fuel cells significantly. Moreover, the temperature gradients show a greater sensitivity to the in-plane thermal conductivity of the GDL as opposed to the through-plane thermal conductivity. Copyright (c) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：603 / 611

页数：9

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