Claims
- 1. 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:a premixer provided in said combustor for burning premixed gas formed by premixing fuel and air; 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 adiabatic efficiency of said compressor and controlling a quantity of water spray on the basis of the adiabatic efficiency, during operation of spraying water droplets.
Priority Claims (2)
Number |
Date |
Country |
Kind |
9-174667 |
Jun 1997 |
JP |
|
9-174668 |
Jun 1997 |
JP |
|
Parent Case Info
This is a divisional application of U.S. Ser. No. 10/156,949, filed May 30, 2002, now U.S. Pat. No. 6,530,210 which is a divisional application of U.S. Ser. No. 09/855,678, filed May 16, 2001 now abandoned.
US Referenced Citations (10)
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56-43433 |
Apr 1991 |
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5-195809 |
Aug 1993 |
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6-10702 |
Jan 1994 |
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Non-Patent Literature Citations (4)
Entry |
Boggio, “Benefits of Compressor Inlet Air Cooling for Gas Turbine Co-generation Plants”, ASME, 95-GT-311, Jun. 1995. |
Poletavkin, “Cycles and Thermal Circuits of Steam-gas Turbine Installations, with Cooling of the Gas During Compression by the Evaporation of Injected Water”, Institute of High Temperature, Academy of Sciences of the USSR, May 1970. |
Johnson, Sr., “The Theory and Operation of Evaporative Coolers for Industrial Gas Turbine Installations”, Journal of Engineering for Gas Turbines and Power, Apr. 1989. |
Nolan et al, “Gas Turbine Performance Improvement Direct Mixing Evaporative Cooling System”, ASME 90-GT-368, Jun. 1990. |