Journal of the Korean Institute of Gas (한국가스학회지)
- Volume 8 Issue 2 Serial No. 23
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- Pages.15-27
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- 2004
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- 1226-8402(pISSN)
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- 2713-6922(eISSN)
Study on the channel of bipolar plate for PEM fuel cell
고분자 전해질 연료전지용 바이폴라 플레이트의 유로 연구
- Ahn Bum Jong (Graduate School of Knowledge Based Technology and Energy, Korea Polytechnic University) ;
- Ko Jae-Churl (Graduate School of Knowledge Based Technology and Energy, Korea Polytechnic University) ;
- Jo Young-Do (Institute of Gas Safety Technology, Korea Gas Safety Corporation)
- Published : 2004.06.01
Abstract
The purpose of this paper is to improve the performance of Polymer electrolyte fuel cell(PEMFC) by studying the channel dimension of bipolar plates using commercial CFD program 'Fluent'. Simulations are done ranging from 0.5 to 3.0mm for different size in order to find the channel size which shoves the highst hydrogen consumption. The results showed that the smaller channel width, land width, channel depth, the higher hydrogen consumption in anode. When channel width is increased, the pressure drop in channel is decreased because total channel length Is decreased, and when land width is increased, the net hydrogen consumption is decreased because hydrogen is diffused under the land width. It is also found that the influence of hydrogen consumption is larger at different channel width than it at different land width. The change of hydrogen consumption with different channel depth isn't as large as it with different channel width, but channel depth has to be small as can as it does because it has influence on the volume of bipolar plates. however the hydrogen utilization among the channel sizes more than 1.0mm which can be machined in reality is the most at channel width 1.0, land width 1.0, channel depth 0.5mm and considered as optimum channel size. The fuel cell combined with 2cm
본 논문은 상용 프로그램인 Fluent를 이용하여 고분자 전해질 연료전지(polymer electrolyte membrane fuel cell)의 바이폴라 플레이트 위에 새겨진 유로형상을 분석함으로서 연료전지의 성능을 향상시키는데 그 목적이 있다. 수소 소모량이 가장 많은 유로크기를 구하기 위하여 0.5
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