Fuel cell based power generation systems and methods of operating the same
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United States of America Patent
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Oct 25, 2011
Grant Date -
Dec 13, 2007
app pub date -
Apr 22, 2005
filing date -
Apr 23, 2004
priority date (Note) -
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Abstract
A power generation system has a fuel cell stack and at least one condensation point in the system at which water present after shutdown of the power generation system can condense or collect. Drying after shutdown is improved by maintaining a temperature gradient between the condensation point and at least one other component in the power generation system after shutdown. In one embodiment, the temperature gradient is maintained by housing the fuel cell stack in a thermally insulated container and arranging the condensation point outside of the insulating container. In another embodiment, drying after shutdown is accomplished with an adsorption unit having a water-adsorbing material arranged in a desired location within the power generation system.
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