FUEL CELL SYSTEM, POWER GENERATION METHOD, AND POWER GENERATION DEVICE

摘要

A fuel cell system 1 equipped with: a reformer 2 for generating a fuel gas by introducing air and reforming ammonia; a fuel cell 3 for generating power by using the air and the fuel gas; an ammonia tank 5 for storing the ammonia in a liquid state; a pump 6 for pumping the liquid ammonia toward the reformer 2; a vaporizer 7 for vaporizing the liquid ammonia and positioned between the pump 6 and the reformer 2; an air supply device 8 for sending air to the reformer 2 and the fuel cell 3; a heat exchanger 9 for preheating the air by performing a heat exchange, and positioned between the air supply device 8 and the fuel cell 3; a first exhaust gas supply unit 16 for supplying exhaust gas discharged by the fuel cell 3 to the vaporizer 7; and a second exhaust gas supply unit 17 for supplying exhaust gas to the heat exchanger 9. In addition, the vaporizer 7 vaporizes the liquid ammonia using the waste heat from the exhaust gas, and the heat exchanger 9 preheats the air by performing a heat exchange using the waste heat from the exhaust gas.