| 摘要 |
PURPOSE:To monitor the state of the reforming catalyst of a fuel cell power generating system by providing a hydrogen concentration monitoring device storing a hydrogen sensor. CONSTITUTION:A hydrogen concentration monitoring device 22 storing a hydrogen sensor is provided between a reforming device 6 and a fuel cell main body 12 in a fuel cell power generating system constituted of the fuel cell main body 12 consisting of a fuel electrode 13, an electrolyte 14 and an oxidizer electrode 15, the reforming device 6 feeding the fossil fuel A, a fuel feeding system containing a shift converter 8, a steam separator 10 or the like, an air feeding system feeding the air J, a cooling system of the cooling water O, and an ancillary feeding device. The hydrogen concentration monitoring device 22 measures the hydrogen concentration in the reformed gas fed to the fuel electrode 13. When a reforming catalyst is deteriorated, the reform reaction efficiency of the fossil fuel A is reduced, and the hydrogen concentration in the reformed gas is decreased. The state of the reforming catalyst can be monitored by measuring the hydrogen concentration in the reformed gas with the hydrogen concentration monitoring device 22. |
