Patent ID: 6854259

Claim:
A gas turbine installation including an air compressor, a combustor for burning fuel together with the air discharged from said compressor, and a turbine driven by combustion gas generated by said combustor, said gas turbine installation comprising: a spraying apparatus provided on an upstream side of said compressor for spraying water droplets to air to be supplied to said compressor; a water adding apparatus provided in a first path leading said compressed air discharged from said compressor to said combustor for adding water to said compressed air flowing in said first path; a heat exchanger provided in said first path on a downstream side of said water adding apparatus for heating the compressed air passed through said water adding apparatus by exhaust gas discharged from the gas turbine; a water recovery apparatus for recovering moisture from exhaust gas having passed through said heat exchanger; a second water supply path for supplying water recovered by said water recovery apparatus to said water adding apparatus; and a spray water supply path through which spray water is led from an external source outside the system to said spraying apparatus.