Fuel cell system and method of starting fuel cell system

Details Fuel cell system and method of starting fuel cell system Fuel cell system and method of starting fuel cell system

2005-11-29

2010-02-23

Ryan, Patrick (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

C429S006000, C429S006000

Reexamination Certificate

active

07666532

ABSTRACT:
A reaction gas is supplied to a cathode side of a fuel cell at a flow rate higher than that for a usual operation of the fuel cell to thaw the fuel cell system at startup in a freezing state of the system when the system has experienced a temperature lower than an operation temperature of an anode off-gas. A thawing state of the system is detected on the basis of at least two of temperatures of the anode off-gas, a cathode off gas, and a radiator liquid of the fuel cell to control supplying the reaction gas to the cathode side at a usual operation flow rate. An actual increase rate of the temperature of the anode off-gas is obtained and an increase rate of the temperature of the anode off-gas is calculated from the self-heating value to be compared to determine the thawing state.

REFERENCES:
patent: 6896985 (2005-05-01), Horiguchi et al.
patent: 2004/0106026 (2004-06-01), Fujita et al.
patent: 2002-093445 (2002-03-01), None

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