Procedure for shutting down a fuel cell system using air purge
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Issued Date -
Jun 20, 2002
app pub date -
Dec 20, 2000
filing date -
Dec 20, 2000
priority date (Note) -
Abandoned
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Abstract
A procedure for shutting down an operating fuel cell system includes disconnecting the primary electricity using device and stopping the flow of hydrogen containing fuel to the anode, followed by quickly displacing the residual hydrogen with air by blowing air through the anode fuel flow field. A sufficiently fast purging of the anode flow field with air eliminates the need for purging with an inert gas such as nitrogen.
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