Patent ID: 6779332
Filing Date: 2004-08-24
Classification: F02C,Y02E

Abstract:
A gas turbine having a compressor for compressing air supplied thereto and discharging the compressed air, a combustor for combusting the compressed air from said compressor and a fuel and a gas turbine to be driven by a combustion gas from said combustor, comprising:an injection unit, arranged at an upstream side of said compressor and constructed so that water droplets are sprayed into the air to be supplied to said compressor to decrease the temperature of the air to be supplied into said compressor to a temperature lower than an atmospheric temperature and the sprayed water droplets introduced into said compressor with the air having been decreased in temperature are evaporated during passage through said compressor; a detection unit for detecting the opening of a compressor inlet vane, arranged in said compressor; and a controlling unit for controlling a quantity of water to be sprayed from said injection unit on the basis of a signal from said detection unit.