| 摘要 |
PROBLEM TO BE SOLVED: To supply a different kind of fuel upon driving a power generating system.SOLUTION: In a power generating system where an exhaust fuel gas L3 discharged from a SOFC is used as a fuel for a combustor 22 of a gas turbine 11, the combustor 22 comprises a first main nozzle 4A, a second main nozzle 4B, an exhaust fuel gas supplying line 45 connected to the first main nozzle to transmit the exhaust fuel gas discharged from the SOFC, a second main nozzle fuel line 27b connected to the second main nozzle to transmit a different kind of fuel gas L1 from the exhaust fuel gas, a first main nozzle control valve 5B of the exhaust fuel gas supplying line, a second main nozzle control valve 5C for the exhaust gas supplying line, and a controller 6. When starting the gas turbine, the controller performs such a control that the first main nozzle control valve is closed and the second main nozzle control valve is opened. Once the SOFC is started after the gas turbine is started, the controller performs such a control that the first main nozzle control valve is opened and the opening degree of the second main nozzle control valve is reduced. |
