Patent ID: 6568167
Filing Date: 2003-05-27
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 within an intake air duct at an upstream side of said compressor and constructed so that water droplets are sprayed into the air to be supplied to the 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; and a controlling unit for monitoring an axial flow velocity of fluid flowing in said compressor and controlling a quantity of water spray on the basis of the axial flow velocity, during operation of spraying water droplets.