Measurement of in-plane effective thermal conductivity in PEM fuel cell diffusion media

被引：46

作者：

Teertstra, P. ^{[1
]}

Karimi, G. ^{[1
]}

Li, X. ^{[1
]}

机构：

[1] Univ Waterloo, Dept Mech & Mechatron Engn, Waterloo, ON N2L 3G1, Canada

来源：

ELECTROCHIMICA ACTA | 2011年 / 56卷 / 03期

基金：

加拿大自然科学与工程研究理事会;

关键词：

PEM fuel cell; Porous media; Gas diffusion media; In-plane thermal conductivity; Experimental measurement; MODEL;

D O I：

10.1016/j.electacta.2010.06.043

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Gas diffusion media used in polymer electrolyte membrane (PEM) fuel cells are highly anisotropic with significantly different transport property values in the through- and in-plane directions. In this study, experimental measurements of the in-plane effective thermal conductivity k for gas diffusion media used in PEM fuel cells have been carried out using a parallel thermal conductance technique. Conductivity values are measured at a mean sample temperature of 70 degrees C for six different material types and two different orientations in order to quantify the effect of PTFE content on thermal conductivity and to reveal any anisotropic behavior. The results vary from a minimum of k = 3.54 W/(m degrees C) to a maximum value of 15.1 W/(m degrees C) for various samples and configurations tested in this study, with an uncertainty between 1% and 2% for all the cases investigated. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1670 / 1675

页数：6

共 9 条

[1] Measurement of the in-plane thermal conductivity of single crystals by the parallel thermal conductance technique [J].

Aaron, K ;

Tang, XF ;

Tritt, TM .

ICT: 2005 24TH INTERNATIONAL CONFERENCE ON THERMOELECTRICS, 2005, :87-90

[2] Thermal-electrochemical modeling of a proton exchange membrane fuel cell [J].

Hwang, JJ .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2006, 153 (02) :A216-A224

[3] A single-phase, non-isothermal model for PEM fuel cells [J].

Ju, H ;

Meng, H ;

Wang, CY .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2005, 48 (07) :1303-1315

[4] Direct measurement of through-plane thermal conductivity and contact resistance in fuel cell materials [J].

Khandelwal, Manish ;

Mench, M. M. .

JOURNAL OF POWER SOURCES, 2006, 161 (02) :1106-1115

[5] DESCRIBING THE UNCERTAINTIES IN EXPERIMENTAL RESULTS [J].

MOFFAT, RJ .

EXPERIMENTAL THERMAL AND FLUID SCIENCE, 1988, 1 (01) :3-17

[6] Thermal dispersion in porous media: one-equation model [J].

Moyne, C ;

Didierjean, S ;

Souto, HPA ;

da Silveira, OT .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2000, 43 (20) :3853-3867

[7] Estimation of the effective thermal conductivity of carbon felts used as PEMFC Gas Diffusion Layers [J].

Ramousse, Julien ;

Didierjean, Sophie ;

Lottin, Olivier ;

Maillet, Denis .

INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2008, 47 (01) :1-6

[8] Mathematical modeling of proton exchange membrane fuel cells [J].

Rowe, A ;

Li, XG .

JOURNAL OF POWER SOURCES, 2001, 102 (1-2) :82-96

[9] A Review of Mathematical Models for Hydrogen and Direct Methanol Polymer Electrolyte Membrane Fuel Cells [J].

Yao, K. Z. ;

Karan, K. ;

McAuley, K. B. ;

Oosthuizen, P. ;

Peppley, B. ;

Xie, T. .

FUEL CELLS, 2004, 4 (1-2) :3-29

← 1 →