Abstract: A fuel heating system for a power plant includes a fuel source for a gas turbine system, wherein the fuel source contains a fuel at a first temperature. Also included is a feedwater source for distributing a feedwater. Further included is a fuel heater configured to receive the fuel at the first temperature and distribute the fuel to the gas turbine system at a second temperature and capable of receiving the feedwater from the feedwater source. Yet further included is at least one boiler drum for containing a boiler substance. Also included is at least one heat exchanger for receiving the feedwater and the boiler substance and distributing the feedwater to the fuel heater and the boiler substance to the blowdown system.

Abstract: In one embodiment of the present disclosure, a gas turbine system for part load efficiency improvement is described. The system includes a gas turbine having a compressor which receives inlet-air. An evaporative cooler system using heated fluid heats the inlet-air before the inlet-air flows to the compressor. Heating the inlet-air reduces an output of the gas turbine and extends the turndown range.

Abstract: A method for assembling a combined cycle power generation system includes coupling a gas turbine in flow communication with a heat recovery steam generator (HRSG). The method also includes coupling a steam turbine in flow communication with the HRSG via at least one steam conduit. The method further includes coupling at least one heating element to a portion of the at least one steam conduit. The method also includes operatively coupling at least one controller to the at least one heating element. The method further includes programming the at least one controller to vary a rate of temperature change in the portion of the at least one steam conduit.

Abstract: A method for assembling a combined cycle power generation system includes coupling a gas turbine in flow communication with a heat recovery steam generator (HRSG). The method also includes coupling a steam turbine in flow communication with the HRSG via at least one steam conduit. The method further includes coupling at least one heating element to a portion of the at least one steam conduit. The method also includes operatively coupling at least one controller to the at least one heating element. The method further includes programming the at least one controller to vary a rate of temperature change in the portion of the at least one steam conduit.