| 학회 |
한국화학공학회 |
| 학술대회 |
2008년 봄 (04/23 ~ 04/25, 제주ICC) |
| 권호 |
14권 1호, p.820 |
| 발표분야 |
에너지/환경 |
| 제목 |
Effect of flow behavior on the current distribution in a direct methanol fuel cell |
| 초록 |
Current density distribution was measured to investigate the effect of operating condition on the local electrical output throughout the membrane electrode assembly in a direct methanol fuel cell. The current distribution profiles were examined under various operation conditions of cell temperature, flow rate of the reactants, and the methanol concentration at different imposed current density and channel configuration of the flow field. The deviations from an even current density distribution were observed when air flow rate at the cathode was reduced. However, it was not affected by decrease in flow rate at the anode. The flow behaviors on both flow fields of anode and cathode were observed using transparent single cell under same conditions. It was found that channel clogging due to water droplet and froth formation along the cathode flow field had mostly influence on inhomogeneity of the current distribution. |
| 저자 |
박상민1, 김상경2, 임성엽2, 정두환2, 홍원희3, 백동현2
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| 소속 |
1한국과학기술원 / 한국에너지기술(연), 2한국에너지기술(연), 3한국과학기술원 |
| 키워드 |
direct methanol fuel cell; current distribution
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| E-Mail |
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| 원문파일 |
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