Abstract:
A method of operating a control unit for controlling at least two different input fuel flows to a combustion device, e.g. a gas turbine includes the step of determining on the basis of at least one operating parameter whether the combustion device is in a predefined operating stage. In response hereto, generating a control signal configured for setting a ratio of at least two different input fuel flows to a predetermined value (psc1, psc3) for a predetermined time (dt) in case the combustion device is in the predefined operating stage.
Abstract:
A method of operating a control unit for controlling at least two different input fuel flows to a combustion device, e.g. a gas turbine includes the step of determining on the basis of at least one operating parameter whether the combustion device is in a predefined operating stage. In response hereto, generating a control signal configured for setting a ratio of at least two different input fuel flows to a predetermined value (psc1, psc3) for a predetermined time (dt) in case the combustion device is in the predefined operating stage.
Abstract:
A combustor system for a gas turbine engine includes a combustion chamber into which a pilot fuel and a main fuel is injectable and flammable, wherein an exhaust gas generated by the burned pilot fuel and the burned main fuel is exhaustible out of the combustion chamber. A control unit is coupled to a fuel control unit for adjusting the pilot fuel ratio. The control unit is adapted for determining a predicted pollutant concentration of the exhaust gas on the basis of a temperature signal, a fuel signal, a mass flow signal and a fuel split ratio.