A gas turbine is configured such that: in the case where the rotation speed of the turbine shaft is a predetermined rotation speed, when the magnitude of a load is set to a predetermined load, a compressed air quantity that is supplied to a primary combustion field in a combustor and a fuel quantity that is supplied to the combustor are controlled to quantities for an equivalent ratio that allows misfire to avoided; and when the magnitude of the load is set to no load, the compressed air quantity that is supplied to the primary combustion field in the combustor and the fuel quantity that is supplied to the combustor are reduced compared to when the magnitude of the load is set to the predetermined load, while the equivalent ratio that allows the misfire to be avoided is kept.

Systems and methods for regulating fuel at a power plant are provided. One example aspect of the present disclosure is directed to a method for regulating fuel at a power plant. The method includes receiving data from an engine. The engine includes an A-ring, a B-ring, and a C-ring. The method includes updating a plurality of models based on the received data. The method includes predicting a plurality of outputs using the plurality of models for a plurality of fuel splits. Each fuel split includes a fuel amount associated with the A-ring. Each fuel split includes a fuel amount associated with the C-ring. The method includes selecting an actual fuel split based on the plurality of outputs.

Electrical power systems, including generating capacity of a gas turbine, where additional electrical power is generated utilizing a separately fueled system during periods of peak electrical power demand.

The present disclosure provides systems and methods for power production. In particular, the systems and methods utilize the addition of heat to an expanded turbine exhaust stream in order to increase the available quantity of heat for recuperation and use therein for heating a compressed carbon dioxide stream for recycle back to a combustor of the power production system and method.

Systems and methods for NOx prediction in a power plant are disclosed. According to one embodiment of the disclosure, a method for NOx prediction in a power plant can be provided. The method may include receiving parameters associated with operation of a combined gas turbine and steam turbine in a power plant, wherein the parameters comprise a combined power output value; determining a steam turbine power output value; based at least in part on the steam turbine power output value, estimating a gas turbine power output value. The method may further include: based at least in part on an input matrix, determining a set of modeled gas turbine parameters. The method may further include based at least in part on omission of the estimated gas turbine power output value from the input matrix, determining a modified set of modeled gas turbine parameters; based at least in part on the modified set of modeled parameters, determining a NOx emission value associated with the power plant; based at least in part on the NOx emission value, determining a control action for the power plant; and facilitating the control action for the power plant.

A method is provided for operating a gas turbine installation which has at least one compressor for compressing combustion air, at least one combustion chamber for combusting a supplied fuel, using the compressed combustion air, and also at least one turbine which is exposed to throughflow by the hot gases from the at least one combustion chamber. Both a first fuel on a carbon base, especially in the form of natural gas, and also a second fuel, in the form of a hydrogen-rich fuel or pure hydrogen, are used as fuel. A reduction of the CO.sub.2 emission without basic modifications to the installation is achieved by the first and the second fuels being intermixed and combusted together in the at least one combustion chamber.

A non-transitory computer readable storage medium storing one or more processor-executable instructions wherein the one or more instructions when executed by a processor of a controller, cause acts to be performed is provided. The acts to be performed include controlling a fuel split to a combustor of a gas turbine utilizing automatic tuning and switching control of the fuel split to the combustor of the gas turbine to utilizing an adjusted fixed fuel split schedule instead of automatic tuning. The adjusted fixed fuel split schedule includes a fixed fuel split schedule adjusted via a biasing value, and the biasing value is based on both the fixed fuel split schedule and an automatic tuning based fuel split.

A system includes a control system configured to control one or more parameters of an exhaust gas recirculation (EGR) gas turbine system to control a portion of electrical power for export from a generator driven by the turbine to an electrical grid. The control system includes a closed-loop controller configured to control parameters of the EGR gas turbine system and an open-loop controller configured to temporarily control the parameters of the EGR gas turbine system to increase the portion of the electrical power exported to the electrical grid to provide a Primary Frequency Response (PFR) in response to a transient event associated with the electrical power. The open-loop controller is configured to provide control signals to increase a concentration of an oxidant in a combustor to provide the PFR in response to the transient event when the EGR gas turbine system is operating in an emissions compliant mode.

The present invention relates to an exhaust-gas treatment device for an aircraft engine, comprising an exhaust-gas channel, through which an exhaust gas of the aircraft engine flows, and a first cooling unit for cooling with ambient air, characterized by a second cooling unit, which is downstream of the first cooling unit with respect to an exhaust-gas flow in the exhaust-gas channel.

Electrical power systems, including generating capacity of a gas turbine, where additional electrical power is generated utilizing a separately fueled system during periods of peak electrical power demand.