Gas–liquid two-phase flow in parallel channels of a direct methanol fuel cell - 文章详情页

作者：

Ye, F. (Ye, F..) | Jia, J.L. (Jia, J.L..) | Guo, H. (Guo, H..) (学者：郭航) | Ma, C.F. (Ma, C.F..)

收录：

Scopus

摘要：

The　CO2　gas　bubble　behavior　in　an　anode　channel　and　the　performance　of　a　transparent　direct　methanol　fuel　cell　(DMFC)　were　experimentally　investigated.　To　observe　the　gas–liquid　two-phase　flow,　the　transparent　anode　plate　was　made　of　polycarbonate,　and　the　anode　end　plate　possessed　a　70　mm　×　70　mm　window.　The　emergence,　growth,　and　coalescence　of　the　CO2　bubbles　were　recorded　by　a　high-speed　camera　at　250　frames/s−1.　The　DMFC　was　tested　and　observed　at　different　current　densities,　methanol　flow　rates,　and　temperatures,　which　exhibited　an　obvious　influence　on　the　CO2　gas　bubbles’　behavior.　It　was　observed　that　the　bubble　size　increased　with　the　current　density　and　temperature,　while　the　bubble　number　obviously　decreased　downstream　in　the　channel.　On　the　other　hand,　the　bubble　behavior,　particularly　its　size　and　gas　volume,　affected　the　internal　mass　transfer　of　the　DMFC　and　therefore　affected　the　cell　performance.　©　2017　by　Begell　House,　Inc.

关键词：

Cell performance; CO2 gas bubble behavior; Direct methanol fuel cell; Two-phase flow; Visualization method

作者机构：

[ 1 ] [Ye, F.]MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Beijing Key Laboratory of Heat Transfer and Energy Conversion, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China
[ 2 ] [Jia, J.L.]MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Beijing Key Laboratory of Heat Transfer and Energy Conversion, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China
[ 3 ] [Guo, H.]MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Beijing Key Laboratory of Heat Transfer and Energy Conversion, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China
[ 4 ] [Ma, C.F.]MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Beijing Key Laboratory of Heat Transfer and Energy Conversion, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China

通讯作者信息：

[Ye, F.]MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Beijing Key Laboratory of Heat Transfer and Energy Conversion, College of Environmental and Energy Engineering, Beijing University of TechnologyChina

电子邮件地址：

yefang@bjut.edu.cn

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