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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2011.5
- 수록면
- 514 - 519 (6page)
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초록· 키워드
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In this study, we propose a wave-like design on surface of the cathode channels(Wave-form cathode channels) to improve oxidant delivery to the gas diffusion layers (GDLs).
Experiments have been performed using PEMFCs combined with the wave-like surface design on cathodes. The cathode gas delivery channels were made of graphite. The variation factors are distance between wave-bumps (Adhesive Distance, AD) and size of the wave-bumps (Expansion Ratio, ER). AD are half-circle bump’s radius of 3, 4, 5 time size. And ER is channel’s height of 1/1.5, 1/2, 1/3 times.
The performance of the fuel cells was evaluated and compared in the current-voltage (I-V) relation. For comparison, PEMFCs with conventional flat-surfaced oxygen channels have been prepared. The aim of this work is to identify the relationship between geometry of channels and fuel cell operation, and ultimate1y to find the optimal design of the cathode channels, maximizing fuel cell performance.
Experiments have been performed using PEMFCs combined with the wave-like surface design on cathodes. The cathode gas delivery channels were made of graphite. The variation factors are distance between wave-bumps (Adhesive Distance, AD) and size of the wave-bumps (Expansion Ratio, ER). AD are half-circle bump’s radius of 3, 4, 5 time size. And ER is channel’s height of 1/1.5, 1/2, 1/3 times.
The performance of the fuel cells was evaluated and compared in the current-voltage (I-V) relation. For comparison, PEMFCs with conventional flat-surfaced oxygen channels have been prepared. The aim of this work is to identify the relationship between geometry of channels and fuel cell operation, and ultimate1y to find the optimal design of the cathode channels, maximizing fuel cell performance.
목차
Abstract
1. 서론
2. 전산 해석
3. 실험
4. 결론
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UCI(KEPA) : I410-ECN-0101-2013-550-000441669