Chemistry: electrical current producing apparatus – product – and – Having magnetic field feature
Patent
1997-06-05
1999-12-07
Bell, Bruce F.
Chemistry: electrical current producing apparatus, product, and
Having magnetic field feature
429 13, 429 20, 429 17, 429 25, 429 26, H01M 804
Patent
active
059980532
ABSTRACT:
The apparatus comprises a cell block with fuel cells, a heat insulating jacket, an afterburner chamber between the jacket and the cell block, a prereformer for a combustion gas as well as an auxiliary heat source. The method comprises a start-up phase and a current-delivering operating state. Hot combustion gases which are fed into the apparatus or are produced there in an auxiliary burner form the auxiliary heat source during the start-up phase. The apparatus comprises a first and a second heat exchanger, for the preheating of air and for preheating the prereformer respectively. During the start-up phase air which is fed into the apparatus is preheated in the first heat exchanger by means of a mixture formed of hot combustion gas and exhaust air with the mixture being conducted separately from the air. Heat is supplied to the fuel cells with the preheated air. The exhaust air emerging from the cells is admixed to the hot combustion gas. In the second heat exchanger the prereformer is heated to the operating temperature with the hot combustion gas.
REFERENCES:
patent: 3146131 (1964-08-01), Linden
patent: 3718506 (1973-02-01), Fischer
patent: 5840437 (1998-11-01), Diethelm
Bell Bruce F.
Sulzer Hexis AG
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