The use of on-line hydrogen sensor for studying inert gas effects and nitrogen crossover in PEMFC system

被引：45

作者：

Karimaki, H. ^{[1
]}

Perez, L. C. ^{[1
,2
]}

Nikiforow, K. ^{[1
]}

Keranen, T. M. ^{[1
]}

Viitakangas, J. ^{[1
]}

Ihonen, J. ^{[1
]}

机构：

[1] VTT Tech Res Ctr Finland, Espoo 02044, Finland

[2] Univ Porto, Fac Engn, LEPAE, P-4200465 Oporto, Portugal

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2011年 / 36卷 / 16期

关键词：

PEMFC system; Inert build-up; Hydrogen quality; Hydrogen concentration sensor; Nitrogen crossover; Anode purge; PERFORMANCE; DESIGN;

D O I：

10.1016/j.ijhydene.2011.04.230

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：

The design and construction of a polymer electrolyte membrane fuel cell (PEMFC) system test bench suitable for investigating the effects of inert gas build-up and hydrogen quality on the performance of PEMFC systems is reported. Moreover, a new methodology to measure the inert gas crossover rate using an on-line hydrogen concentration sensor is introduced, and preliminary results are presented for an aged 8 kW PEMFC stack. The system test bench was also characterized using the same stack, whereupon its performance was observed to be close to commercial systems. The effect of inert gas accumulation and hence the quality of hydrogen on the performance of the system was studied by diluting hydrogen gas in the anode supply pipeline with nitrogen. During these experiments, uneven performance between cells was observed for the aged stack. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：10179 / 10187

页数：9

共 31 条

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