发明名称 |
PASSIVE DUAL-PHASE COOLING FOR FUEL CELL ASSEMBLIES |
摘要 |
A cooling apparatus for a fuel cell assembly includes a heat transfer fluid and at least one fluid flow field plate configured to facilitate essentially passive, two-phase cooling for an membrane electrode assembly (MEA) as the MEA is subject to changes in heat flux to the heat transfer fluid from about 0 W/cm<SUP>2</SUP> to about 1.5 W/cm<SUP>2</SUP>. The flow field plate includes fluid flow channels that have a channel depth, a channel spacing, a channel length, and a channel width, which are dimensioned to promote nucleated boiling of the heat transfer fluid below a critical heat flux and to prevent dryout as the heat transfer fluid passes along the length of the channels. The channels may include coatings and/or features, such as microporous or nanostructured coatings, that extend the critical heat flux and preclude dryout at the distal sections of the fluid flow channels. |
申请公布号 |
WO2006047015(A3) |
申请公布日期 |
2006.09.14 |
申请号 |
WO2005US33214 |
申请日期 |
2005.09.16 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
TUMA, PHILLIP E.,;LEWINSKI, KRZYSZTOF A.,;DEBE, MARK K., |
分类号 |
H01M8/02;H01M8/04 |
主分类号 |
H01M8/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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