| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and a device for calculating gas turbine inlet temperature capable of accurately grasping the gas turbine inlet temperature. SOLUTION: A gas turbine single body 12 and an air compressor 13 are connected by a rotary shaft. In the calculation of a temperature of the gas turbine inlet through which a combustion fluid flows into the gas turbine single body 12 of a gas turbine constituted to drive the rotary shaft 14 by supplying the combustion fluid obtained in a combustor 15 to the gas turbine single body 12, torque is measured by an optical torque measurement device 18 at a rotary shaft position on which an output load of the gas turbine 11 is applied, an output of the gas turbine is calculated from the toque measured by the torque measurement device 18, the enthalpy of the fluid at the gas turbine inlet is calculated by using a calculated output of the gas turbine, and a gas turbine inlet temperature is calculated based on the calculated enthalpy of the fluid at the gas turbine inlet. COPYRIGHT: (C)2008,JPO&INPIT
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