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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2020.12
- 수록면
- 1,005 - 1,010 (6page)
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Two conceptional cathode flow field designs are proposed for preventing serious electrolyte dehydration and overcoming unstable performance issues in PEFC that are air-cooled passive type. In one design, porous metal foam is selectively inserted into the parallel channels in contact with the cathode gas diffusion layer to suppress water transport from the cell, and the other one has a smaller cathode inlet area to reduce the amount of reactant air entering the MEA. Compared with a conventional parallel flow-field configuration, the metal foam based design results in better water retention in the MEA when excess dry air is supplied. Furthermore, it shows more uniform distributions of species, temperature, current density, and higher cell performance. The modification of the cathode inlet area has a relatively small influence on performance of the fuel cell. This study presents a new strategy for designing the cathode flow field for the optimal operation of passive air cooled fuel cells.
목차
Abstract
1. 서론
2. 이론 및 실험
3. 결론
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