Chemistry: electrical current producing apparatus – product – and – Having magnetic field feature
Patent
1997-04-21
1999-05-04
Kalafut, Stephen
Chemistry: electrical current producing apparatus, product, and
Having magnetic field feature
429 26, 429 34, H01M 804
Patent
active
059003294
ABSTRACT:
It is presently customary in a high-temperature fuel-cell system to divide the cathode waste gas, in particular, into two subflows, of which one is recirculated again to the cathode and the other is removed for heat utilization. The bifurcation is carried out at relatively high technical costs at about the operating temperature of the fuel cell at the gas outlets themselves. In order to reduce that cost, the entire cathode waste gas is fed through a heat exchanger to a bifurcation having two branch pipes. The first branch pipe opens through an air addition point and the heat exchanger into the cathode and the second branch pipe opens into a temperature-increasing device. In this way, a bifurcation of the hot cathode waste gas is avoided and the heat of the entire cathode waste gas is used to heat the cathode waste gas subflow fed back into the cathode. The invention can preferably be used, in particular, for fuel cells having operating temperatures above 600.degree. C. Such fuel cells are the molten carbonate fuel cell and the solid electrolyte fuel cell.
REFERENCES:
patent: 3976506 (1976-08-01), Landau
patent: 4333992 (1982-06-01), Healy
patent: 4622275 (1986-11-01), Noguchi et al.
patent: 5319925 (1994-06-01), Hendriks et al.
patent: 5340663 (1994-08-01), Buswell et al.
patent: 5417051 (1995-05-01), Ankersmit et al.
patent: 5554453 (1996-09-01), Steinfeld et al.
Japanese Patent Abstract No. 63289774 (Toshiaki), dated Mar. 22, 1989.
Japanese Patent Abstract No. 63279576 (Toru), dated Mar. 15, 1989.
Japanese Patent Abstract No. 63152878 (Osao et al.), dated Nov. 2, 1988.
Japanese Patent Abstract No. 61176075 (Narihisa), dated Dec. 23, 1986.
"Hochtemperatur-Brandstoffzelle SOFC --Stand der Forschung fur eine neue Technik zur Stromerzeugung", Dr. E. Erdle, VDI Berichte No. 1029, 1993, pp. 249-259 (Month Unknown).
Chmelik Pavel
Lehmeier Jurgen
Reiter Kurt
Greenberg Laurence A.
Kalafut Stephen
Lerner Herbert L.
Siemens Aktiengesellschaft
LandOfFree
Fuel-cell system and method for operating a fuel-cell system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fuel-cell system and method for operating a fuel-cell system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel-cell system and method for operating a fuel-cell system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1869158