Patent ID: 7513099

Claim:
A stationary gas turbine for power generation, comprising: an injection apparatus for injecting a liquid into an air stream that is sucked in by a compressor; a fuel mixed with the air stream and combusted in a combustion chamber to form a hot gas which expands as it flows through a downstream turbine; and a humidity-measuring device for recording the humidity of the air stream upstream of the injection apparatus; and a first temperature-measuring device for recording a temperature of the air stream upstream of the injection apparatus; and a second temperature-measuring device for recording a turbine outlet temperature of an exhaust present at an outlet of the turbine; and a controller unit controlling flow of the fuel into the gas turbine comprising; inputs receiving the recorded humidity from the humidity-measuring device and the temperatures from the first and second temperature-measuring devices; an output connected to a shut-off member for controlling the flow of fuel; wherein the controller unit is configured to produce the output by; determining a temperature of the air stream at an inlet of the compressor, determining a corrected turbine outlet temperature as a function of the temperature of the air stream at the inlet of the compressor, comparing the determined corrected turbine outlet temperature to an inputted desired value of corrected turbine outlet temperature, and producing the output effective to control the shut-off member as a function of the compared corrected turbine outlet temperatures.