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US 2001/0022075 A1Published application
Gas turbine
OwnerShigemi Mandai, Masataka Ohta +2inventors
InventorsShigemi Mandai, Masataka Ohta, Kuniaki Aoyama, Katsunori Tanaka
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OwnerShigemi Mandai, Masataka Ohta +2inventors
InventorsShigemi Mandai, Masataka Ohta, Kuniaki Aoyama, Katsunori Tanaka
Estimating the term…
A gas turbine is provided with combustors having cooling passages formed in the wall of the combustors. The walls of the combustors are cooled by cooling fluid flowing through the cooling passages. Steam generated by a waste heat recovery boiler is supplied to the cooling passages as cooling fluid during the normal operation of the gas turbine. During start up and shut down operation of the gas turbine, pressurized air from the gas turbine compressor is supplied to the cooling passage as cooling fluid. Since pressurized air from the gas turbine compressor is used for cooling fluid for the combustors during start up and shut down operations, a separate auxiliary boiler is not required for supplying cooling steam to the combustor during start up and shut down operation.
A gas turbine comprising a turbine driven by combustion gas generated by burning a mixture of combustion air and fuel in a combustor, an air compressor driven by the turbine for supplying pressurized combustion air to the combustor, a cooling passage formed in the wall of the combustor and a cooling means for cooling the wall of the combustor by supplying a cooling fluid to the cooling passage, wherein the cooling means supplies either of steam and air, or both of steam and air to the cooling passage as the cooling fluid.
A method for starting a gas turbine comprising:
A method for stopping a gas turbine comprising:
Dependencies are inferred from the claim text.