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题名: Diagnostic tool to detect liquid water removal in the cathode channels of proton exchange membrane fuel cells
作者: Ma, H. P.;  Zhang, H. M.;  Hu, J.;  Cai, Y. H.;  Yi, B. L.
通讯作者: 张华民
关键词: transparent PEMFC ;  pressure-drop ;  flooding ;  liquid water removal
刊名: JOURNAL OF POWER SOURCES
发表日期: 2006-11-08
DOI: 10.1016/j.jpowsour.2006.06.055
卷: 162, 期:1, 页:469-473
收录类别: SCI
文章类型: Article
部门归属: 3
项目归属: 303
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Electrochemistry ;  Energy & Fuels
英文摘要: A transparent PEMFC with a single straight channel was designed to study liquid water transport in the cathode channel. The pressure-drop between the inlet and outlet of the channel was measured and used as a diagnostic signal to monitor liquid water accumulation and removal. This method was non-destructive for the fuel cell, and is capable of monitoring the water droplet buildup and removal in the channel on-line directly, and giving real-time liquid water buildup information. The proper velocity for liquid water removal can be determined according to the pressure-drop curve, which was very helpful to design a flow field and to optimize fuel cell operation. Under the study conditions, and to ensure liquid water discharge, the gas velocity should not lower than 2, 3 and 5 m s(-1) for 600, 1000 and 1200 mA cm(-2), respectively. The results were further verified by visualization in a transparent PEMFC. (c) 2006 Elsevier B.V. All rights reserved.
关键词[WOS]: TRANSPORT ;  VISUALIZATION ;  BEHAVIOR
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000242059700055
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/97503
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Lab PEMFC Key Mat & Technol, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Ma, H. P.,Zhang, H. M.,Hu, J.,et al. Diagnostic tool to detect liquid water removal in the cathode channels of proton exchange membrane fuel cells[J]. JOURNAL OF POWER SOURCES,2006,162(1):469-473.
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