The effect of air stoichiometry change on the dynamic behavior of a proton exchange membrane fuel cell
文献类型：期刊论文
| 作者 | Qu, Shuguo; Li, Xiaojin; Hou, Ming; Shao, Zhigang; Yi, Baolian |
| 刊名 | journal of power sources
 |
| 出版日期 | 2008-10-15 |
| 卷号 | 185期号:1页码:302-310 |
| 关键词 | Polymer electrolyte fuel cells Transient response Stoichiometric change Voltage undershoot Reactant starvation |
| 产权排序 | 1;1 |
| 通讯作者 | 李晓锦 |
| 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. |
| 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] | flow-field design ; transient analysis ; transport phenomena ; model ; pemfc ; conductivity ; degradation ; performance ; mechanisms ; steady |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000259906600043 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/100531]  |
| 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 | Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell R&D Ctr, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | 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. |
| APA | Qu, Shuguo,Li, Xiaojin,Hou, Ming,Shao, Zhigang,&Yi, Baolian.(2008).The effect of air stoichiometry change on the dynamic behavior of a proton exchange membrane fuel cell.journal of power sources,185(1),302-310. |
| MLA | Qu, Shuguo,et al."The effect of air stoichiometry change on the dynamic behavior of a proton exchange membrane fuel cell".journal of power sources 185.1(2008):302-310. |
入库方式： OAI收割
来源：大连化学物理研究所
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