Hydrogen purge and reactant feeding strategies in self-humidified PEM fuel cell systems

被引：49
|
作者：
Migliardini, F. [1 ]
Di Palma, T. M. [1 ]
Gaele, M. F. [1 ,2 ]
Corbo, P. [1 ]
机构：
[1] Natl Res Council Italy, Ist Motori, Via G Marconi 8, I-80125 Naples, Italy
[2] Univ Napoli Parthenope, Ctr Direz Isola C4, I-80143 Naples, Italy
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2017年 / 42卷 / 03期
关键词：
Fuel cell system; Proton exchange membrane fuel cells; Hydrogen recirculation; Anode purge; Dead end; DEAD-END ANODE; MEMBRANE; STACK; OPTIMIZATION; PERFORMANCE; TRANSPORTATION; VEHICLES; CYCLE;
D O I：
10.1016/j.ijhydene.2016.06.196
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：
A 6 kW proton exchange membrane fuel cell system, operating in self-humidified conditions, was characterized in two anode operative modes: dead-end and flow through with exhaust recirculation. The anode sub-system was specifically designed in order to adjust the level of recycled anodic stream. The role of anode purge frequency, anode recirculation level and air stoichiometric ratio was analysed in the power range 1-5 kW. The aim of this study was to define management strategies to assure efficient and reliable cell performance during steady-state, warm-up and load variation phases. The results evidenced the combined effect of hydrogen purge, air flow rate impulse, and recycled anodic stream on individual cell performance recovery when unstable working conditions were detected during system start-up and load variations. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：1758 / 1765
页数：8
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