Compressor discharge bleed air circuit in gas turbine plants and related method
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United States of America Patent
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-
Apr 8, 2003
Grant Date -
Sep 19, 2002
app pub date -
May 24, 2002
filing date -
Sep 11, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
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.
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