Abstract: A system for augmenting gas turbine power output is disclosed. The system may include a gas turbine engine having a compressor, a combustor, and a turbine. The system also may include a pressurized air tank in communication with the gas turbine engine. Moreover, the system may include an external compressor in communication with the pressurized air tank. The external compressor may be configured to supply compressed air to the pressurized air tank, and the pressurized air tank may be configured to supply compressed air to the gas turbine engine.

Abstract: A system and method for generating steam during gas turbine low-load operating conditions is disclosed herein. The system includes a gas turbine having a compressor, a combustor, a turbine and at least one bleed air extraction port in fluid communication with the compressor, a compressor discharge casing or the combustor. The system further includes a premix duct burner downstream from the turbine and upstream from a heat recovery steam generator of the gas turbine. During operation, the premix duct burner increases temperature of combustion gases flowing from the turbine and into the heat recovery steam generator and compressed air flows out of the bleed air extraction port so as to reduce pressure within the compressor, the compressor discharge casing or the combustor during low-load gas turbine operating conditions.

Abstract: A system for decoupling steam production dependency from gas turbine load includes a gas turbine having an inlet system, a compressor, a combustor and a turbine. The combustor includes a plurality of axially staged fuel injectors positioned downstream from a plurality of primary fuel nozzles and a center fuel nozzle. The gas turbine further includes at least one bleed air extraction port that is in fluid communication with at least one of the compressor, a compressor discharge casing or the combustor. The system also includes a diluent injection system that is in fluid communication with the combustor and an exhaust section that is disposed downstream from the turbine. The exhaust section includes an oxidation catalyst system and a heat recovery steam generator.

Abstract: A system and related method for maintaining emissions compliance while operating a gas turbine in turndown mode are disclosed herein. The system includes a gas turbine including a compressor, a combustor, a turbine and an exhaust section. The combustor comprises a plurality of axially staged fuel injectors positioned downstream from a plurality of primary fuel nozzles and a center fuel nozzle. The gas turbine further comprises a bleed air extraction port that is in fluid communication with at least one of the compressor, a compressor discharge casing or the combustor. The system further includes a controller programmed to bleed compressed air from the bleed air extraction port and to energize the plurality of axially staged fuel injectors during turndown operation of the gas turbine.

Abstract: A system for augmenting gas turbine power output is disclosed. The system may include a gas turbine engine having a compressor, a combustor, and a turbine. The system also may include a pressurized air tank in communication with the gas turbine engine. Moreover, the system may include an external compressor in communication with the pressurized air tank. The external compressor may be configured to supply compressed air to the pressurized air tank, and the pressurized air tank may be configured to supply compressed air to the gas turbine engine.