Water transport in the proton exchange-membrane fuel cell: Comparison of model computation and measurements of effective drag
Water transport through the membrane of a PEMFC was investigated by measurement of the net drag under various feed gas humidity. Measured data were compared with computed results obtained using a two-dimensional cell model. Considering the change in the gas content related to the flow configuration,...
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| Veröffentlicht in: | Journal of power sources 2006-11, Vol.162 (2), p.1130-1136 |
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| container_title | Journal of power sources |
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| creator | Murahashi, Toshiaki Naiki, Masao Nishiyama, Enju |
| description | Water transport through the membrane of a PEMFC was investigated by measurement of the net drag under various feed gas humidity. Measured data were compared with computed results obtained using a two-dimensional cell model. Considering the change in the gas content related to the flow configuration, the humidity of the supply gas, reaction rates, and the mass balance of each gas species were derived at five sections along the flow channels. By solving these mass balance equations, the water transport rates and current density distribution were obtained along the flow channels for various feed gas humidity. The results for net drag computed from the model show a similar tendency, but are slightly higher than the measured values. This suggests that there is a certain resistance related to water transport at the cathode membrane interface in association with water production. The cause of this water transport resistance is discussed. |
| doi_str_mv | 10.1016/j.jpowsour.2006.07.043 |
| format | Article |
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Measured data were compared with computed results obtained using a two-dimensional cell model. Considering the change in the gas content related to the flow configuration, the humidity of the supply gas, reaction rates, and the mass balance of each gas species were derived at five sections along the flow channels. By solving these mass balance equations, the water transport rates and current density distribution were obtained along the flow channels for various feed gas humidity. The results for net drag computed from the model show a similar tendency, but are slightly higher than the measured values. This suggests that there is a certain resistance related to water transport at the cathode membrane interface in association with water production. The cause of this water transport resistance is discussed.</description><identifier>ISSN: 0378-7753</identifier><identifier>EISSN: 1873-2755</identifier><identifier>DOI: 10.1016/j.jpowsour.2006.07.043</identifier><identifier>CODEN: JPSODZ</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Applied sciences ; Capillary effect ; Energy ; Energy. 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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 cells</subject><subject>Net water drag</subject><subject>Proton exchange membrane fuel cell</subject><subject>Water management</subject><subject>Water transport</subject><issn>0378-7753</issn><issn>1873-2755</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNqFkM1u1TAQRi1EJS4tr4C8gV3COI5jhxXoij-pEpsilpbjjFtfJXGwnUIXvDuObhFLViPNnJnRdwh5yaBmwLo3p_q0hp8pbLFuALoaZA0tf0IOTEleNVKIp-QAXKpKSsGfkecpnQCAMQkH8vu7yRhpjmZJa4iZ-oXmO6RrDDksFH_ZO7PcYjXjPBQGqdtwohan6S09hnk10afCBUfnMO6T0tuyyb40zTLSGU3aIs645LRT6Bza7O-RjtHcXpELZ6aELx7rJfn28cPN8XN1_fXTl-P768q2vM8VR9WMbADseCu6DoYWoWdgWyuEVQqxR-iYGVrTgBxcY0UrRKuYcpJzGDp-SV6f75ZYPzZMWc8-7SFKorAl3fQKQChVwO4M2hhSiuj0Gv1s4oNmoHfb-qT_2ta7bQ1SF9tl8dXjB5OsmVxxZX36t61433IJhXt35rDEvfcYdbIeF4ujj0WMHoP_36s_AZebqA</recordid><startdate>20061101</startdate><enddate>20061101</enddate><creator>Murahashi, Toshiaki</creator><creator>Naiki, Masao</creator><creator>Nishiyama, Enju</creator><general>Elsevier B.V</general><general>Elsevier Sequoia</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>20061101</creationdate><title>Water transport in the proton exchange-membrane fuel cell: Comparison of model computation and measurements of effective drag</title><author>Murahashi, Toshiaki ; Naiki, Masao ; Nishiyama, Enju</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c439t-3e82d1b0e6345660b4e0910c4c55c88ee9e061ab4a207bf2c54554818f7330b63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Applied sciences</topic><topic>Capillary effect</topic><topic>Energy</topic><topic>Energy. 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| ispartof | Journal of power sources, 2006-11, Vol.162 (2), p.1130-1136 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Applied sciences Capillary effect Energy Energy. Thermal use of fuels Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc Exact sciences and technology Fuel cells Net water drag Proton exchange membrane fuel cell Water management Water transport |
| title | Water transport in the proton exchange-membrane fuel cell: Comparison of model computation and measurements of effective drag |
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