FUEL CELL AND HOT WATER SUPPLY COGENERATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a fuel cell and hot water supply cogeneration system which effectively utilizes the waste heat of a reforming unit and a fuel cell, to supply hot water of desired temperature. SOLUTION: This fuel cell and hot water supply cogeneration system comprises: a reforming unit 1 which generates hydrogen rich reformed gas from a material fuel; a fuel cell 2 which generates the power using hydrogen in the reformed gas as the fuel; a heat exchanging unit 4 which recovers the waste heat of at least one of the reforming unit 1 or the fuel cell 2 to supply the same to a heat accumulation tank 3; a water supply mechanism which supplies water to the heat accumulation tank 4 for heating the water by the heat accumulation tank 4; and a heating device for additionally heating the water heated by the heat accumulation tank 4. A large quantity of heat can be accumulated even with a small amount of the waste heat of the reforming unit 1 and the fuel cell 2. When the temperature of the water heated by the heat accumulation tank 3 is low, the water can be heated by the heating device to be supplied as the hot water of a specific temperature.