Supercharging system for gas turbines
AssigneeEnhanced Turbine Output Holding, LLC
InventorWilliam L. Kopko
Life of this patent
Estimating the term…
Abstract
A supercharging system for gas turbine power plants (11). The system includes a supercharging fan (30, 32) and controller (50) for limiting turbine power output to prevent overload of the generator (28) at lower ambient temperatures. The controller can limit power output by burner control, inlet temperature control, control of supercharging fan pressure and other options. The system can be retrofit on an existing turbine without replacing the generator and associated parts.
Claims22
A supercharged, power-producing gas turbine system, said system comprising:
- a gas turbine subsystem and an electrical generator, said gas turbine subsystem comprising a compressor, a burner, and a gas turbine, wherein a gas turbine subsystem input airstream is compressed by said compressor, heated by said burner, and expanded through said turbine to cause said turbine to rotate, whereby said turbine drives said generator to generate electrical power;
- a variable supercharging subsystem comprising at least one supercharging fan and a controller which variably increases the pressure of said gas turbine subsystem input airstream as ambient temperature increases over an operating temperature range of said gas turbine system, up to a predefined maximum supercharging pressure above atmospheric pressure, whereby power output of said turbine and hence electrical output of said electrical generator may be increased;
- and
- at least one fogger located upstream of said gas turbine subsystem input airstream, for providing a source of mist to humidify and cool said input airstream before it is inputted to said compressor.
A supercharged, power-producing gas turbine system, said system comprising:
- a gas turbine subsystem and an electrical generator, said gas turbine subsystem comprising a compressor, a burner, and a gas turbine, wherein a gas turbine subsystem input airstream is compressed by said compressor, heated by said burner, and expanded through said turbine to cause said turbine to rotate, whereby said turbine drives said generator to generate electrical power;
- a variable supercharging subsystem comprising at least one supercharging fan and a controller which variably increases the pressure of said gas turbine subsystem input airstream above atmospheric pressure over an operating temperature range of said gas turbine system, whereby power output of said turbine and hence electrical output of said electrical generator may be increased so that the turbine system does not exceed a specified limit;
- and
- at least one fogger located upstream of said gas turbine subsystem input airstream, for providing a source of mist to humidify and cool said input airstream before it is inputted to said compressor.
A supercharged, power-producing gas turbine system, said system comprising:
- a gas turbine subsystem and an electrical generator, said gas turbine subsystem comprising a compressor, a burner, and a gas turbine, wherein a gas turbine subsystem input airstream is compressed by said compressor, heated by said burner, and expanded through said turbine to cause said turbine to rotate, whereby said turbine drives said generator to generate electrical power, and
- a variable supercharging subsystem comprising at least one supercharging fan and a controller which can variably increase and vary the pressure of said gas turbine subsystem input airstream above atmospheric pressure over an operating temperature range of said gas turbine system.
Dependencies are inferred from the claim text.