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A gas turbine system that includes a compressor, a turbine component and a load, wherein fuel and compressor discharge bleed air are supplied to a combustor and gaseous products of combustion are introduced into the turbine component and subsequently exhausted to atmosphere. A compressor discharge b

A gas turbine system that includes a compressor, a turbine component and a load, wherein fuel and compressor discharge bleed air are supplied to a combustor and gaseous products of combustion are introduced into the turbine component and subsequently exhausted to atmosphere. A compressor discharge bleed air circuit removes bleed air from the compressor and supplies one portion of the bleed air to the combustor and another portion of the compressor discharge bleed air to an exhaust stack of the turbine component in a single cycle system, or to a heat recovery steam generator in a combined cycle system. In both systems, the bleed air diverted from the combustor may be expanded in an air expander to reduce pressure upstream of the exhaust stack or heat recovery steam generator.

대표청구항 ▼

1. A combined cycle system comprising a compressor, a gas turbine component, a first load, a heat recovery steam generator and a steam turbine; wherein fuel and compressor discharge air are supplied to a combustor and gaseous products of combustion are introduced into the gas turbine component and s

1. A combined cycle system comprising a compressor, a gas turbine component, a first load, a heat recovery steam generator and a steam turbine; wherein fuel and compressor discharge air are supplied to a combustor and gaseous products of combustion are introduced into the gas turbine component and subsequently exhausted to said heat recovery steam generator for re-heating condensed steam from said steam turbine and returning the reheated steam to said steam turbine for driving a second load; and a compressor discharge bleed air circuit that supplies one portion of the compressor discharge air to the combustor and a bleed air portion of the compressor discharge air to the heat recovery steam generator where said bleed air portion is exhausted to atmosphere.