Procedure for starting up a fuel cell system using a fuel purge

Details Procedure for starting up a fuel cell system using a fuel purge Procedure for starting up a fuel cell system using a fuel purge

2005-05-03

2005-05-03

Yuan, Dah-Wei (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

C429S006000, C429S006000

Reexamination Certificate

active

06887599

ABSTRACT:
A procedure for starting up a fuel cell system that is disconnected from its primary load and has both its cathode and anode flow fields filled with air includes initiating a flow of air through the cathode flow field and rapidly displacing the air in the anode flow field by delivering a flow of fresh hydrogen containing fuel into the anode flow field, and thereafter connecting the primary load across the cell. Sufficiently fast purging of the anode flow field with hydrogen prior to connecting the cells to the load eliminates the need for purging the anode flow field with an inert gas, such as nitrogen, upon start-up.

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