Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7714175 | International Journal of Hydrogen Energy | 2015 | 9 Pages |
Abstract
The results achieved are used to identify operation and architecture improvements for an appropriate water management, a key aspect to optimize efficiency and stability of PEMFC systems [1]. Based on the process simulation and experimental investigations can be summarized: In single and twin system operation the stack temperature and the cathode stoichiometric ratio have to be decreased at reduced operating pressure to avoid membrane dehydration. An additional feed gas humidification could be appropriate, especially at low pressure operation. The twin system architecture is relevant to minimize fuel cell flooding at high operating pressure and low stoichiometric ratios required to achieve ODA specifications.
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Authors
Claudia Werner, Lucas Busemeyer, Josef Kallo,