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US 7,980,083 B2Granted
Method and system for operating a combined cycle power plant
AssigneeGeneral Electric Company
InventorPing Yu
Life of this patent
Estimating the term…
Abstract
An embodiment of the present invention may provide a variable speed booster, which receives air from a compressor of a gas turbine through an intercooler, to supply air at a relatively constant pressure to an air processing unit. An embodiment of the present invention may provide an external power source to energize the variable speed booster; which provides air at a relatively constant pressure to an air processing unit.
Claims20
A combined cycle powerplant system comprising:
- a gas turbine comprising:
- a compressor, a combustion chamber, and a turbine section drivingly coupled to the compressor;
- a source of bleed air from the compressor coupled in flow communication with an inlet of a variable guide vane booster;
- an external power source, wherein the external power source comprises an internal combustion engine;
- an air separation unit coupled in flow communication with an outlet of the variable guide vane booster, the variable guide vane booster integrated with the external power source, wherein the external power source powers the variable guide vane booster to operate, wherein the variable guide vane booster is a single air supply source to the air separation unit.
2 more elements
A method of operating a combined cycle powerplant system, the method comprising:
- providing a gas turbine comprising a compressor, wherein the gas turbine generates an exhaust;
- coupling a source of bleed air deriving from the compressor with an inlet of a variable guide vane booster;
- and
- coupling an outlet of the variable guide vane booster with an air separation unit, and utilizing an external power source to energize the variable guide vane booster, wherein the external power source comprises an internal combustion engine and the variable guide vane booster is a single air supply source to the air separation unit.
1 more element
An integrated gasification combined cycle (IGCC) power plant comprising:
- a gas turbine comprising:
- a compressor, a combustion chamber, and a turbine section drivingly coupled to the compressor;
- an external power source, wherein the external power source comprises an internal combustion engine;
- and
- a variable guide vane booster coupled in flow communication between the compressor and an air separation unit, the variable guide vane booster configured to receive a flow of compressed air at a variable flow and pressure and to generate a flow of compressed air at a flow that matches a demand using one or more variable vanes and a substantially constant pressure to the air separation unit, the variable guide vane booster drivingly coupled to the external power source, wherein the variable guide vane booster is a single air supply source to the air separation unit.
2 more elements
Dependencies are inferred from the claim text.