Procedure for shutting down a fuel cell system using air purge

Details Procedure for shutting down a fuel cell system using air purge Procedure for shutting down a fuel cell system using air purge

2005-02-22

2005-02-22

Yuan, Dah-Wei (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

C429S010000, C429S006000, C429S006000

Reexamination Certificate

active

06858336

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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