Power plants – Combustion products used as motive fluid – Combined with starting feature
Reexamination Certificate
2006-10-24
2006-10-24
Kim, Ted (Department: 3746)
Power plants
Combustion products used as motive fluid
Combined with starting feature
C060S782000, C060S794000, C060S795000
Reexamination Certificate
active
07124591
ABSTRACT:
A gas turbine includes a compressor, a combustor, a turbine, and a flow path diverting an excess portion of the compressed air produced by the compressor around the turbine. The flow path conducts the excess portion into a turbine exhaust gas flow producing a cooled exhaust gas. A method of operating the gas turbine includes opening an inlet guide vane of the compressor to allow the compressor to produce an increased volume of compressed air. The increased volume exceeds a volume of compressed air needed to support combustion. An excess portion of the compressed air is directed into the exhaust gas to produce a cooled exhaust. In a combined cycle power plant, the cooled exhaust from the gas turbine may be used to warm a steam turbine portion to a desired temperature while allowing operation of the gas turbine at a power level that produces exhaust gas at a temperature higher than the desired temperature.
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Baer Joan Mae
Keller Douglas Allen
Laster Walter Ray
Kim Ted
Siemens Power Generation, Inc.
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