Experimental and modeling study on water dynamic transport of the proton exchange membrane fuel cell under transient air flow and load change

	Experimental and modeling study on water dynamic transport of the proton exchange membrane fuel cell under transient air flow and load change
	Qu, Shuguo 1,2; Li, Xiaojin 1; Ke, Changchun 1,2; Shao, Zhi-Gang 1; Yi, Baolian 1
刊名	journal of power sources
	2010-10-01
卷号	195 期号:19 页码:6629-6636
关键词	Proton exchange membrane fuel cell Transient response Water transport Transient air flow change Load change
通讯作者	李晓锦
产权排序	1;1
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.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	electrochemistry ; energy & fuels
研究领域[WOS]	electrochemistry ; energy & fuels
关键词[WOS]	polymer-electrolyte ; mathematical-model ; effective drag ; impurity ions ; anode side ; management ; performances ; conductivity ; computation ; mechanisms
收录类别	SCI
原文出处	false
语种	英语
WOS记录号	WOS:000279459500049
公开日期	2010-11-30
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/103627]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
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
推荐引用方式 GB/T 7714	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.
APA	Qu, Shuguo,Li, Xiaojin,Ke, Changchun,Shao, Zhi-Gang,&Yi, Baolian.(2010).Experimental and modeling study on water dynamic transport of the proton exchange membrane fuel cell under transient air flow and load change.journal of power sources,195(19),6629-6636.
MLA	Qu, Shuguo,et al."Experimental and modeling study on water dynamic transport of the proton exchange membrane fuel cell under transient air flow and load change".journal of power sources 195.19(2010):6629-6636.