Fuel cell power generation system and operation stop method of the same
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United States of America Patent
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Jul 8, 2014
Grant Date -
Jul 26, 2012
app pub date -
Jan 30, 2012
filing date -
Mar 18, 2010
priority date (Note) -
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Abstract
A fuel cell power generation system including a fuel cell, a fuel generator, an oxidizing gas supply device, an output controller, an open-close mechanism, and a controller. The controller is configured such that in a stop process, the controller controls the output controller to stop supplying the electric power to an external load; controls the oxidizing gas supply device to stop supplying an oxidizing gas and controls the open-close mechanism to close a passage upstream from an oxidizing gas channel; after the passage upstream from the oxidizing gas channel is closed, stops a raw material gas supply device and a water supply device when a predetermined period has elapsed, during which period a gas in the oxidizing gas channel is replaced by a fuel gas.
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