Modeling two-phase behavior in PEFCs
A model is developed to examine quantitatively the effects of flooding on the operation of polymer-electrolyte fuel cells (PEFCs). Specifically, the change in the maximum power as a function of the structural properties of the diffusion media, including the bulk porosity, wettability, thickness, and...
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| Veröffentlicht in: | Journal of the Electrochemical Society 2004, Vol.151 (10), p.A1715-A1727 |
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| container_end_page | A1727 |
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| container_issue | 10 |
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| container_title | Journal of the Electrochemical Society |
| container_volume | 151 |
| creator | WEBER, Adam Z DARLING, Robert M NEWMAN, John |
| description | A model is developed to examine quantitatively the effects of flooding on the operation of polymer-electrolyte fuel cells (PEFCs). Specifically, the change in the maximum power as a function of the structural properties of the diffusion media, including the bulk porosity, wettability, thickness, and pore-size distribution, is described. The porous-medium model developed includes analytic expressions and a modeling methodology for handling both liquid and gas flow. The model is used in combination with our previous membrane model to simulate transport in typical gas diffusion layers and examine the effect of layer hydrophobicity on the maximum power. |
| doi_str_mv | 10.1149/1.1792891 |
| format | Article |
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Specifically, the change in the maximum power as a function of the structural properties of the diffusion media, including the bulk porosity, wettability, thickness, and pore-size distribution, is described. The porous-medium model developed includes analytic expressions and a modeling methodology for handling both liquid and gas flow. The model is used in combination with our previous membrane model to simulate transport in typical gas diffusion layers and examine the effect of layer hydrophobicity on the maximum power.</description><identifier>ISSN: 0013-4651</identifier><identifier>EISSN: 1945-7111</identifier><identifier>DOI: 10.1149/1.1792891</identifier><identifier>CODEN: JESOAN</identifier><language>eng</language><publisher>Pennington, NJ: Electrochemical Society</publisher><subject>Applied sciences ; Energy ; Energy. Thermal use of fuels ; Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc ; Exact sciences and technology ; Fuel cells</subject><ispartof>Journal of the Electrochemical Society, 2004, Vol.151 (10), p.A1715-A1727</ispartof><rights>2005 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c288t-6610531c30b7c07ca52e83090eb4a236ce300c3388e2b5043e4ffaa2ad2900073</citedby><cites>FETCH-LOGICAL-c288t-6610531c30b7c07ca52e83090eb4a236ce300c3388e2b5043e4ffaa2ad2900073</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,4010,27900,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=16227955$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>WEBER, Adam Z</creatorcontrib><creatorcontrib>DARLING, Robert M</creatorcontrib><creatorcontrib>NEWMAN, John</creatorcontrib><title>Modeling two-phase behavior in PEFCs</title><title>Journal of the Electrochemical Society</title><description>A model is developed to examine quantitatively the effects of flooding on the operation of polymer-electrolyte fuel cells (PEFCs). Specifically, the change in the maximum power as a function of the structural properties of the diffusion media, including the bulk porosity, wettability, thickness, and pore-size distribution, is described. The porous-medium model developed includes analytic expressions and a modeling methodology for handling both liquid and gas flow. The model is used in combination with our previous membrane model to simulate transport in typical gas diffusion layers and examine the effect of layer hydrophobicity on the maximum power.</description><subject>Applied sciences</subject><subject>Energy</subject><subject>Energy. 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Thermal use of fuels</topic><topic>Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc</topic><topic>Exact sciences and technology</topic><topic>Fuel cells</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>WEBER, Adam Z</creatorcontrib><creatorcontrib>DARLING, Robert M</creatorcontrib><creatorcontrib>NEWMAN, John</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of the Electrochemical Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>WEBER, Adam Z</au><au>DARLING, Robert M</au><au>NEWMAN, John</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Modeling two-phase behavior in PEFCs</atitle><jtitle>Journal of the Electrochemical Society</jtitle><date>2004</date><risdate>2004</risdate><volume>151</volume><issue>10</issue><spage>A1715</spage><epage>A1727</epage><pages>A1715-A1727</pages><issn>0013-4651</issn><eissn>1945-7111</eissn><coden>JESOAN</coden><abstract>A model is developed to examine quantitatively the effects of flooding on the operation of polymer-electrolyte fuel cells (PEFCs). 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| ispartof | Journal of the Electrochemical Society, 2004, Vol.151 (10), p.A1715-A1727 |
| issn | 0013-4651 1945-7111 |
| language | eng |
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| source | IOP Publishing Journals |
| subjects | Applied sciences Energy Energy. Thermal use of fuels Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc Exact sciences and technology Fuel cells |
| title | Modeling two-phase behavior in PEFCs |
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