Patent ID: 8266910

Claim:
A system for changing the efficiency of a combustion turbine operating at partload, the system comprising: an inlet system configured for receiving an airstream, the inlet system comprising: an inlet bleed heat (IBH) system and an air conditioning system configured for adjusting a temperature of the inlet air; wherein the airstream enters the air conditioning system at a first temperature and exits the air conditioning system at a second temperature, wherein the IBH system is disposed downstream from the air conditioning system, the IBH system comprising a recirculation conduit coupled to a compressor section for recirculating a compressed air to the IBH system; a combustion turbine comprising a compressor section, wherein the compressor section comprises an inlet guide vane (IGV) system, and wherein the compressor section receives the airstream from the inlet system; a heat source located external to the combustion turbine and integrated with the air conditioning system; wherein the heat source increases the temperature of the airstream, wherein the heat source comprises at least one of a boiler, a power plant component, a solar energy source, a geothermal energy source, a fuel cell/chemical reaction, and combinations thereof; and a turbine control system configured to control the air conditioning system and the IGV system to provide a bias that delays a modulation of the IGV system when the air conditioning system operates.