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METHOD OF CONTROLLING TEMPERATURE OF GAS TURBINE COMPONENTS USING A COMPRESSED MOISURIZED COOLANT

United States Patent Application

20130061600
A1
View the Complete Application at the US Patent & Trademark Office
A method and apparatus for controlling a temperature a component of a gas turbine is disclosed. A compressed gas for use as a coolant is provided. The coolant is moisturized at a moisturizeing unit. A circulating unit circulates the moisturized coolant to the component of the gas turbine to control the temperature of the component. The coolant can be air, nitrogen, and a mixture of air and nitrogen in various embodiments. The component of the turbine can be a blade of a turbine section of the gas turbine, a turbine nozzle and a combustor, for example. A combustor can combust a mixture of fuel and the moisturized compressed coolant gas to reduce a NOx emission of the gas turbine.
Anand, Ashok Kumar (Niskayuna, NY), Itzel, Gary Michael (Simpsonville, SC), Lacy, Benjamin Paul (Greer, SC), Muthaiah, Veerappan (Bangalore, IN), Reddy, Nagarjuna Reddy Thirumala (Bangalore, IN)
GENERAL ELECTRIC COMPANY (Schenectady NY)
13/ 230,983
September 13, 2011
FEDERAL RESEARCH STATEMENT [0001] This invention was made with Government support under Agreement DE-FC26-05NT42643, awarded by the Department of Energy. The U.S. Government has certain rights in the invention.