High temperature fuel cells with heating of the reaction gas

Details High temperature fuel cells with heating of the reaction gas High temperature fuel cells with heating of the reaction gas

1998-02-20

2000-10-24

Gorgos, Kathryn

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 17, 429 20, 429 26, H01M 804

Patent

active

061364622

ABSTRACT:
The invention relates to a fuel cell system with high-temperature fuel cells, in which some of the heat of the gases flowing out of the anode and cathode is used to that end. The gases that the flow into the anode and cathode are brought to a temperature that is required for operation of the fuel cells and is still tolerable for the cells, having an anode and/or cathode loop. It is provided that for the anode and/or cathode loop, at least that time-referred quantity of reaction gases that is required for attaining the electrical output of the fuel cells is furnished. From the gas flowing out of the anode and/or cathode, an equivalent quantity of gas is removed from the gas loop, and the gas quantity introduced into the loop is dimensioned such that by mixing this gas quantity with the gas returned to the loop from the anode and/or cathode, the temperature of the gas flowing into the anode and/or cathode attains a predetermined operating temperature that is optimal for the service life of the cells and for efficiency.

REFERENCES:
patent: 3198664 (1965-08-01), Kunz
patent: 3253957 (1966-05-01), Turner et al.
patent: 3539397 (1970-11-01), Keating et al.
patent: 3595699 (1971-07-01), Baude
patent: 4640873 (1987-02-01), Tajima et al.
patent: 4923768 (1990-05-01), Kaneko et al.
patent: 5441821 (1995-08-01), Merritt et al.

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