Patent ID: 6530229
Filing Date: 2003-03-11
Classification: F02C

Abstract:
A gas turbine having a turbine, a combustor fluidly connected to said turbine and producing combustion gas which drives said turbine, and a gas turbine compressor fluidly connected to said combustor and supplying compressed combustion air thereto, comprising:a heat exchanger fluidly connected to said gas turbine compressor which exchanges heat with a part of the air compressed by said gas turbine compressor; first and second boost compressors fluidly connected to said heat exchanger which compress the air heat-exchanged by said heat exchanger, said first and second boost compressors being arranged in parallel with each other in an air system, said second boost compressor being driven by a driving source other than a shaft of said turbine; and a spray air system which supplies the air compressed by said second boost compressor to said corubustor as air for spraying fuel.