TEMPERATURE ESTIMATION DEVICE, COMBUSTOR, GAS TURBINE, TEMPERATURE ESTIMATION METHOD, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a temperature estimation device capable of appropriately estimate a turbine inlet temperature despite changes of an operating situation and an active state.SOLUTION: A temperature estimation device comprises a temperature estimation unit estimating a turbine inlet temperature using a relational expression representing that a gas turbine output difference indicating a difference between a measurement value and an estimated value of a gas turbine output value is equal to a value obtained by subtracting a compressor work difference indicating a difference between an actual value and an estimated value of compressor work from a turbine work difference indicating a difference between an actual value of turbine work expressed by a function of the turbine inlet temperature and an estimated value of the turbine work.SELECTED DRAWING: Figure 2