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题名: Experimental and modeling study on water dynamic transport of the proton exchange membrane fuel cell under transient air flow and load change
作者: Qu, Shuguo1, 2;  Li, Xiaojin1;  Ke, Changchun1, 2;  Shao, Zhi-Gang1;  Yi, Baolian1
通讯作者: 李晓锦
关键词: Proton exchange membrane fuel cell ;  Transient response ;  Water transport ;  Transient air flow change ;  Load change
刊名: JOURNAL OF POWER SOURCES
发表日期: 2010-10-01
DOI: 10.1016/j.jpowsour.2010.04.029
卷: 195, 期:19, 页:6629-6636
收录类别: SCI
文章类型: Article
部门归属: 3
项目归属: 301
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: Water management is important in the proton exchange membrane fuel cell (PEMFC) operations, especially for those cells based on sulfonic acid polymers due to the depending of the conductivity on water. This paper aims at illustrating the effect of the change in membrane water content on cell potential response. For this purpose, the cell potential response has been investigated experimentally and computationally under transient air flow and load change of a PEMFC. From the experimental and computational results, an undershoot behavior of cell potential as well as the great influence of the relative humidity on the magnitude of undershoot is observed. It is found that the magnitude of cell potential undershoot increases as the relative humidity decreases. By carrying out a transient simulation on the water content of the membrane, the undershoot phenomena could be well explained. It is also found from the computational prediction that the time scale for the cell potential to reach its steady state is about 20 s, in agreement with experimental results. The model prediction also suggests that the dynamic behavior of PEMFC is critically dependent on the water content in the membrane. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.
关键词[WOS]: POLYMER-ELECTROLYTE ;  MATHEMATICAL-MODEL ;  EFFECTIVE DRAG ;  IMPURITY IONS ;  ANODE SIDE ;  MANAGEMENT ;  PERFORMANCES ;  CONDUCTIVITY ;  COMPUTATION ;  MECHANISMS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000279459500049
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/103627
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, Fuel Cell Syst & Engn Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China

Recommended Citation:
Qu, Shuguo,Li, Xiaojin,Ke, Changchun,et al. Experimental and modeling study on water dynamic transport of the proton exchange membrane fuel cell under transient air flow and load change[J]. JOURNAL OF POWER SOURCES,2010,195(19):6629-6636.
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