期刊
JOURNAL OF POWER SOURCES
卷 185, 期 1, 页码 248-260出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2008.07.005
关键词
Fuel cell stack; Gas flow configuration; Stack design; Polymer electrolyte membrane; PEMFC
资金
- Austrian Federal Ministry for Transport, Innovation and Technology (BMVIT)
- Austrian Research Promotion Agency (FFG)
The internal gas distribution system utilised for supplying fresh reactants and removing reaction products from the individual cells of a fuel cell stack can be designed in a parallel, a serial or a mixture of parallel and serial gas flow configuration. In order to investigate the interdependence between the internal stack gas distribution configuration and single cell as well as overall stack performance, a small laboratory-scale fuel cell stack consisting of identical unit cells was subject to operation with different gas distribution configurations and different operating parameters. The current/voltage characteristics measured with the different gas distribution configurations are analysed and compared on unit cell- as well as on stack-level. The results show the significant impact of the internal stack gas distribution system on operation and performance of the individual unit cells and the overall stack. (c) 2008 Elsevier B.V. All rights reserved.
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