中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: The effect of air stoichiometry change on the dynamic behavior of a proton exchange membrane fuel cell
作者: Qu, Shuguo1;  Li, Xiaojin1;  Hou, Ming1;  Shao, Zhigang1;  Yi, Baolian1
通讯作者: 李晓锦
关键词: Polymer electrolyte fuel cells ;  Transient response ;  Stoichiometric change ;  Voltage undershoot ;  Reactant starvation
刊名: JOURNAL OF POWER SOURCES
发表日期: 2008-10-15
DOI: 10.1016/j.jpowsour.2008.06.080
卷: 185, 期:1, 页:302-310
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: Numerical simulations are carried out in this paper, to study the effect of air stoichiometry change on a single-channel proton exchange membrane (PEM) fuel cell undergoing load change. For this purpose, the air stoichiometry change rate and pattern, as well as its lagging time to the load change and initial value, are taken into account in this model, respectively. The transient response of cell potential to load change has been investigated and the undershoot behavior has been observed. Detailed results are further presented to show the transient response of the cell in terms of local current density and oxygen mass fraction distributions. This work shows that the extent of air dilution/starvation down the channel depends on the air stoichiomtric flow ratio change rate, pattern, etc. It is also shown this undershoot can be eliminated by adjusting the initial air flow ratio, or by improving the air flow ratio change rate, etc. Finally, the validity of the numerical model in this paper is verified by the comparison between the model results and experimental data, showing that this numerical model can be resorted to reveal the effects of air stoichiometry change on the dynamic behavior of a PEMFC. (c) 2008 Elsevier B.V. All rights reserved.
关键词[WOS]: FLOW-FIELD DESIGN ;  TRANSIENT ANALYSIS ;  TRANSPORT PHENOMENA ;  MODEL ;  PEMFC ;  CONDUCTIVITY ;  DEGRADATION ;  PERFORMANCE ;  MECHANISMS ;  STEADY
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000259906600043
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/100531
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell R&D Ctr, Dalian 116023, Peoples R China

Recommended Citation:
Qu, Shuguo,Li, Xiaojin,Hou, Ming,et al. The effect of air stoichiometry change on the dynamic behavior of a proton exchange membrane fuel cell[J]. JOURNAL OF POWER SOURCES,2008,185(1):302-310.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Qu, Shuguo]'s Articles
 [Li, Xiaojin]'s Articles
 [Hou, Ming]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Qu, Shuguo]‘s Articles
 [Li, Xiaojin]‘s Articles
 [Hou, Ming]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace