Gas turbine operative at high ambient temperatures
AssigneeEnhanced Turbine Output Holding, LLC
InventorWilliam L. Kopko
Life of this patent
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Abstract
A generating plant with improved capacity at high ambient temperatures comprises a gas turbine (32) matched to a generator (26) for summer peaking conditions. The plant includes a system for limiting turbine output at lower ambient temperatures to ensure that the generator or other components are not overloaded. It also preferably includes an evaporative cooler (70) for gas turbine inlet air.
Claims20
A gas-turbine power plant, comprising:
- a compressor having an air inlet and an air outlet;
- a flow path between the atmosphere and the inlet of said compressor;
- a burner that receives compressed air from the outlet of said compressor;
- a turbine that receives heated, compressed air from said bumer, provides output power in response to receiving said heated air and which is sized in relation to said compressor so as to produce a maximum design output capacity at a preselected ambient temperature of at least 50 degrees Fahrenheit by providing an increased pressure and flow capability of said compressor relative to said turbine at said preselected ambient temperature;
- an output shaft that is connected to said turbine;
- and
- means for varying the output of said turbine to limit the output of said turbine to a predetermined maximum output not greater than said maximum design output capacity for ambient temperatures below said preselected ambient temperature.
A method for enhancing the capacity at high ambient temperatures of a gas-turbine power plant that comprises a compressor, a burner, and a turbine, said method comprising the steps of:
- providing an increased pressure and flow capability from the compressor relative to that of the turbine at ambient temperatures above about 50 degrees Fahrenheit such that a maximum design output capacity of said plant is achieved at an ambient temperature above about 50 degrees Fahrenheit, and
- limiting the capacity of the gas-turbine power plant at ambient temperatures below about 50 degrees Fahrenheit so that a design capacity limit of the turbine is not exceeded.
Dependencies are inferred from the claim text.