Recovery system of heat energy in a fuel cell system

Details Recovery system of heat energy in a fuel cell system Recovery system of heat energy in a fuel cell system

H - Electricity

01

M

H01M 8/04 (2006.01) H01M 8/06 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2365815

A fuel cell system 1 comprises a fuel cell stack 10, an evaporator 21, a reforming device 22, a supercharger 23, an offgas heating device 24, and a catalytic combustion chamber 25. Offgas exhausted from the fuel cell stack 10 is burnt in the catalytic combustion chamber 25, and the burnt offgas is introduced to the evaporator 21 to be heat exchanged with a reforming raw fuel and reforming air. The burnt offgas cooled by means of the heat exchange is introduced to the offgas heating device 24, to be used as a heat source for heating the offgas exhausted from the fuel cell stack 10. The offgas can be heated by the burnt offgas, and the moisture in the offgas can be vaporized and introduced to the catalytic combustion chamber 25. As a result, a reduction in the quantity of generated heat of the catalytic combustion chamber can be prevented in the fuel cell system.

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