Managing water and auxiliary power in fuel cell power plant...

Details Managing water and auxiliary power in fuel cell power plant... Managing water and auxiliary power in fuel cell power plant...

2007-06-12

2007-06-12

Kalafut, Stephen J. (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

C429S006000, C429S006000

Reexamination Certificate

active

10734835

ABSTRACT:
A stack (11) of fuel cells have water flow channels receiving water through a pump (33) from an accumulator (29) having double walls (63, 66) with vacuum insulation panels (VIPs) (65, 68) therebetween, auxiliary DC power source (80) (battery or supercapacitor) is disposed in a container (43) having double walls (81, 86) with VIPs (65, 68) encapsulated therebetween. A keep-warm heater (51) keeps the source warm enough for at least half power capacity, the source driving its own heater as well as a keep-warm heater (50) in the accumulator to keep the accumulator above freezing. A microwave heater (58) disposed in the accumulator distributes energy to melt ice using fuel cell stack power upon startup.

REFERENCES:
patent: 3823037 (1974-07-01), Cairns et al.
patent: 5051322 (1991-09-01), Hasenauer
patent: 5599636 (1997-02-01), Braun
patent: 6432568 (2002-08-01), Salvador et al.
patent: 2001/0028791 (2001-10-01), Salyer
patent: 2005/0084735 (2005-04-01), Breault

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