Investigation of water droplet kinetics and optimization of channel geometry for PEM fuel cell cathodes

被引：92

作者：

Akhtar, Nawaz ^{[1
,2
]}

Qureshi, Arshad ^{[2
]}

Scholta, Joachim ^{[1
]}

Hartnig, Christoph ^{[1
]}

Messerschmidt, Matthias ^{[1
]}

Lehnert, Weyner ^{[1
]}

机构：

[1] ZSW, Dept Electrochem Proc & Modeling, D-89081 Ulm, Germany

[2] Univ Engn & Technol, Dept Mech Engn, Lahore 31, Pakistan

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2009年 / 34卷 / 07期

关键词：

PEMFC; Fuel cells; Flow field design; Water transport; Two-phase flow; FLOW-FIELD; PRESSURE-DROP; 2-PHASE FLOW; DIAGNOSTIC-TOOLS; BIPOLAR PLATES; BEHAVIOR; VISUALIZATION; EXCHANGE; PERFORMANCE; TRANSPORT;

D O I：

10.1016/j.ijhydene.2009.01.022

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

The kinetics and transport mechanisms of water droplets in model flow field channels of a low temperature polymer electrolyte fuel cell were investigated. The pressure drop at different air flows was measured for different channel geometries in a graphite plate as employed for fuel cell bipolar plates. The minimum air flow required for the movement of a water droplet in the flow channel was identified. From the experimental findings, recommendations for the development of flow fields with high condensate removal capabilities combined with low pressure differences were drawn to allow for an efficient operation of PEM fuel cells. (C) 2009 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

引用

页码：3104 / 3111

页数：8

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