Patent ID: 6973772

Claim:
A gas turbine installation including a compressor for compressing air, 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 path leading said compressed air discharged from said compressor to said combustor for adding water to said compressed air flowing in said path; a heat exchanger provided in said path on a downstream side of said water adding apparatus and an exhaust gas path leading exhaust gas discharged from said turbine to atmospheric air for heating the compressed air passed through said water adding apparatus, by said exhaust gas; a water recovery apparatus provided in said exhaust gas path on the downstream side of said heat exchanger for recovering moisture front said exhaust gas; and an exhaust gas reheater provided in said exhaust gas path on the downstream side of said heat exchanger for heating exhaust gas from which said moisture has been recovered at said water recovery apparatus by said exhaust gas passed through said heat exchanger.