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Compressor discharge bleed air circuit in gas turbine plants and related method

United States Patent

April 8, 2003
View the Complete Patent at the US Patent & Trademark Office
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.
Anand; Ashok Kumar (Niskayuna, NY), Berrahou; Philip Fadhel (Latham, NY), Jandrisevits; Michael (Clifton Park, NY)
General Electric Company (Schenectady, NY)
10/ 153,609
May 24, 2002
This invention was made with Government support under Contract No. DE-FC21-95MC31176 awarded by the Department of Energy. The Government has certain rights in this invention.