Investigation of contact pressure distribution over the active area of PEM fuel cell stack.pdfVIP

下载本文档

18
0
约3.09万字
约 10页
2017-03-16 发布于天津
举报
版权申诉

Investigation of contact pressure distribution over the active area of PEM fuel cell stack.pdf

1、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。。
2、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
3、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
4、该文档为VIP文档，如果想要下载，成为VIP会员后，下载免费。
5、成为VIP后，下载本文档将扣除1次下载权益。下载后，不支持退款、换文档。如有疑问请联系我们。
6、成为VIP后，您将拥有八大权益，权益包括：VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
7、VIP文档为合作方或网友上传，每下载1次，网站将根据用户上传文档的质量评分、类型等，对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档

Investigation of contact pressure distribution over the active area of PEM fuel cell stack.pdf

i n t e r n a t i o n a l j o u r n a l o f h y d r o g e n e n e r g y 4 1 ( 2 0 1 6 ) 3 0 6 2 e3 0 7 1 Available online at ScienceDirect journal homepage: /locate/he Investigation of contact pressure distribution over the active area of PEM fuel cell stack E. Alizadeh*, M.M. Barzegari, M. Momenifar, M. Ghadimi, S.H.M. Saadat Malek Ashtar University of Technology, Fuel Cell Technology Research Laboratory, Iran article info Article history: Received 5 October 2015 Received in revised form 5 December 2015 Accepted 8 December 2015 Available online 6 January 2016 Keywords: PEM fuel cell Finite element method End plates Contact pressure distribution MEA abstract Contact pressure distribution over the active area of proton exchange membrane fuel cell (PEMFC) has signi?cant effects on the performance of PEMFCs. Even clamping pressure over the membrane electrode assembly (MEA) affects contact resistance, characteristics of porous media and sealing task. This paper develops a PEM fuel cell model to study the contact pressure distribution over the membrane electrode assembly using ?nite element model. At ?rst, the three-dimensional model of a single cell was reduced to a twodimensional model to decrease the calculation time. After validation of the obtained results via the pressure sensitive ?lms, the effect of some parameters such as thickness and material of the end plates, sealant hardness, number of the stacks cells and position of the cell on the contact pressure distribution over the MEA were investigated. The results reveal that optimizing mentioned parameters leads to design PEM fuel cells with proper contact pressure distribution over the MEA. Copyright ? 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. Introduction Recently, proton exchange membrane fuel cell has attracted much attention due to its high ef?ciency, low temperature, quick startup and being clean energy converter which converts the energy stored in hydrogen and