| 摘要 |
PROBLEM TO BE SOLVED: To prevent power generation efficiency from being reduced due to a blocked air flow caused by piling up a generated moisture in a fuel cell main body in a fuel cell system. SOLUTION: In this fuel cell system, the air from a blower 105 can pass through a humidification bypass line 1 disposed in parallel to an air supply passage. When a generated moisture piles up in an air electrode 104 and battery reaction is decreased during operation, a humidification valve 2 is opened and the air is passed through the humidification bypass line 1 to be directly supplied to the air electrode 104. Thereby, pressure losses are reduced the airflow is increased and the generated moisture is pushed away. |
