Chemistry: electrical current producing apparatus – product – and – Having magnetic field feature
Patent
1990-04-23
1991-07-23
Skapars, Anthony
Chemistry: electrical current producing apparatus, product, and
Having magnetic field feature
429 26, 429 30, H01M 804
Patent
active
050342878
ABSTRACT:
A fuel cell is cooled by circulating a stream through the cell, the stream containing a reactive material which undergoes an endothermic reaction within the fuel cell, absorbing waste heat. The material, upon leaving the fuel cell, passes through a regenerative heat exchanger where heat is removed. The reacted material then undergoes an exothermic reaction, releasing the waste heat absorbed within the fuel cell. After the exothermic reaction, the material is returned to the fuel cell to repeat the cooling cycle. Utilizing a reactive cooling system based on the heat of reaction as a means for removing waste heat allows reducing the amount of gases supplied to the fuel cell, thus reducing the size of the internal gas passages and consequently, the overall size of the fuel cell while maintaining a high power output.
REFERENCES:
patent: 4567117 (1986-01-01), Patel et al.
patent: 4591538 (1986-05-01), Kunz
patent: 4640873 (1987-02-01), Tajima et al.
patent: 4857420 (1989-08-01), Maricle et al.
"The Chemical Heat Pipe, EVA and ADAM", published in the Interdisciplinary Science reviews, vol. 6, No. 3, 1981, (Heyden & Son Ltd, 1981), Dipl.-Ing. Ralf E. Harth and Dr-Ing. Udo Boltendahl, from pp. 221-228.
International Fuel Cells Corporation
Skapars Anthony
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