FUEL CELL POWER GENERATION DEVICE AND METHOD

摘要

PROBLEM TO BE SOLVED: To enhance a power generation performance by using a fuel cell for which an electrolyte membrane having heat resistance is adopted, and humidify a reaction gas with a high efficiency with high accuracy.SOLUTION: A fuel cell power generation device comprises: a fuel cell 10 of which the operation temperature is 80-180°C; a cooling unit 20 for supplying a pressurized cooling water W to the fuel cell 10 for cooling thereof; and a gas humidifier 30 for humidifying a reaction gas to be supplied to the fuel cell 10. The gas humidifier 30 has contact humidifiers 32A and 32B, heaters 34A and 34B and temperature controllers 36A and 36B. The heaters 34A and 34B serve to heat humidifying water W2 by the pressurized cooling water W heated by the fuel cell 10. The temperature controllers 36A and 36B serve to control the temperature of the humidifying water W2 so that the water content of the reaction gas to be supplied to the fuel cell 10 corresponds to a saturated humidity of the temperature of the humidifying water W2.SELECTED DRAWING: Figure 2