A Study of dynamic characteristics of PEM fuel cells by measuring local currents
Dynamic characteristics are important information in analyzing and understanding PEM fuel cell performances and detailed local dynamic information is extremely important in the understanding of fundamental mechanisms. In this study, the input parameters studied include humidification temperature of...
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| Veröffentlicht in: | International journal of hydrogen energy 2009-07, Vol.34 (13), p.5529-5536 |
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| container_title | International journal of hydrogen energy |
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| creator | Sun, Hong Zhang, Guangsheng Guo, Liejin Liu, Hongtan |
| description | Dynamic characteristics are important information in analyzing and understanding PEM fuel cell performances and detailed local dynamic information is extremely important in the understanding of fundamental mechanisms. In this study, the input parameters studied include humidification temperature of the reactant gases, operating temperature, and operating backpressure and the local dynamic responses are the local current densities. The fuel cell used is a PEM fuel cell with a single channel serpentine flow field and the local current densities are directly measured using the current density distribution measurement gasket and a multi-channel potentiostat. The experimental results show that very different local dynamic responses exist even though the response of the average current shows very little dynamics. Especially when the humidification temperature increases from a low value to moderate value, the responses of the local current density in the upstream are very different from those in the downstream. |
| doi_str_mv | 10.1016/j.ijhydene.2009.04.066 |
| format | Article |
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In this study, the input parameters studied include humidification temperature of the reactant gases, operating temperature, and operating backpressure and the local dynamic responses are the local current densities. The fuel cell used is a PEM fuel cell with a single channel serpentine flow field and the local current densities are directly measured using the current density distribution measurement gasket and a multi-channel potentiostat. The experimental results show that very different local dynamic responses exist even though the response of the average current shows very little dynamics. Especially when the humidification temperature increases from a low value to moderate value, the responses of the local current density in the upstream are very different from those in the downstream.</description><identifier>ISSN: 0360-3199</identifier><identifier>EISSN: 1879-3487</identifier><identifier>DOI: 10.1016/j.ijhydene.2009.04.066</identifier><identifier>CODEN: IJHEDX</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Applied sciences ; Current distribution ; Density ; Dynamic characteristics ; Dynamic tests ; Dynamics ; Energy ; Energy. 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In this study, the input parameters studied include humidification temperature of the reactant gases, operating temperature, and operating backpressure and the local dynamic responses are the local current densities. The fuel cell used is a PEM fuel cell with a single channel serpentine flow field and the local current densities are directly measured using the current density distribution measurement gasket and a multi-channel potentiostat. The experimental results show that very different local dynamic responses exist even though the response of the average current shows very little dynamics. Especially when the humidification temperature increases from a low value to moderate value, the responses of the local current density in the upstream are very different from those in the downstream.</description><subject>Applied sciences</subject><subject>Current distribution</subject><subject>Density</subject><subject>Dynamic characteristics</subject><subject>Dynamic tests</subject><subject>Dynamics</subject><subject>Energy</subject><subject>Energy. Thermal use of fuels</subject><subject>Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc</subject><subject>Exact sciences and technology</subject><subject>Fuel cell</subject><subject>Fuel cells</subject><subject>Humidification</subject><subject>Local current</subject><subject>Operating temperature</subject><subject>Proton exchange membrane (PEM)</subject><issn>0360-3199</issn><issn>1879-3487</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqFkE9LxDAQxYMouK5-BclF8NI606Zpc1PEf7DignoOaTp1s3TbNWmFfnu7rHr1NIf3e_NmHmPnCDECyqt17NarsaKW4gRAxSBikPKAzbDIVZSKIj9kM0glRCkqdcxOQlgDYA5Czdjyhr_2QzXyrubV2JqNs9yujDe2J-9C72zYScu7Z14P1HBLTRN4OfINmTB4137wprNmEgbvqe3DKTuqTRPo7GfO2fv93dvtY7R4eXi6vVlEVqDsoyIjCRJUKVKhsLSKsMxqLFOyKinThLLMWCFlVRhJUGaqRFuIBEnmsgDEdM4u93u3vvscKPR648LuOtNSNwSNMsdkCgA5oXKPWt-F4KnWW-82xo8aQe8q1Gv9W6HeVahB6KnCyXjxk2HC9GPtTWtd-HMnmCdFKtXEXe85mh7-cuR1sI5aS5XzZHtdde6_qG-D6Ink</recordid><startdate>20090701</startdate><enddate>20090701</enddate><creator>Sun, Hong</creator><creator>Zhang, Guangsheng</creator><creator>Guo, Liejin</creator><creator>Liu, Hongtan</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20090701</creationdate><title>A Study of dynamic characteristics of PEM fuel cells by measuring local currents</title><author>Sun, Hong ; Zhang, Guangsheng ; Guo, Liejin ; Liu, Hongtan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c416t-85e60609b43491bc9e1b5f1b3ec92b32e55ac466d8a6e0b59b1c8421e67680113</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Applied sciences</topic><topic>Current distribution</topic><topic>Density</topic><topic>Dynamic characteristics</topic><topic>Dynamic tests</topic><topic>Dynamics</topic><topic>Energy</topic><topic>Energy. 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 cell</topic><topic>Fuel cells</topic><topic>Humidification</topic><topic>Local current</topic><topic>Operating temperature</topic><topic>Proton exchange membrane (PEM)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sun, Hong</creatorcontrib><creatorcontrib>Zhang, Guangsheng</creatorcontrib><creatorcontrib>Guo, Liejin</creatorcontrib><creatorcontrib>Liu, Hongtan</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>International journal of hydrogen energy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sun, Hong</au><au>Zhang, Guangsheng</au><au>Guo, Liejin</au><au>Liu, Hongtan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A Study of dynamic characteristics of PEM fuel cells by measuring local currents</atitle><jtitle>International journal of hydrogen energy</jtitle><date>2009-07-01</date><risdate>2009</risdate><volume>34</volume><issue>13</issue><spage>5529</spage><epage>5536</epage><pages>5529-5536</pages><issn>0360-3199</issn><eissn>1879-3487</eissn><coden>IJHEDX</coden><abstract>Dynamic characteristics are important information in analyzing and understanding PEM fuel cell performances and detailed local dynamic information is extremely important in the understanding of fundamental mechanisms. In this study, the input parameters studied include humidification temperature of the reactant gases, operating temperature, and operating backpressure and the local dynamic responses are the local current densities. The fuel cell used is a PEM fuel cell with a single channel serpentine flow field and the local current densities are directly measured using the current density distribution measurement gasket and a multi-channel potentiostat. The experimental results show that very different local dynamic responses exist even though the response of the average current shows very little dynamics. Especially when the humidification temperature increases from a low value to moderate value, the responses of the local current density in the upstream are very different from those in the downstream.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.ijhydene.2009.04.066</doi><tpages>8</tpages></addata></record> |
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| ispartof | International journal of hydrogen energy, 2009-07, Vol.34 (13), p.5529-5536 |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Applied sciences Current distribution Density Dynamic characteristics Dynamic tests Dynamics Energy Energy. Thermal use of fuels Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc Exact sciences and technology Fuel cell Fuel cells Humidification Local current Operating temperature Proton exchange membrane (PEM) |
| title | A Study of dynamic characteristics of PEM fuel cells by measuring local currents |
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