| Patent application number | Description | Published |
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| 20090005951 | Systems and Methods for Using a Combustion Dynamics Tuning Algorithm with a Multi-Can Combustor - Embodiments of the invention can provide systems and methods for using a combustion dynamics tuning algorithm with a multi-can combustor. According to one embodiment of the invention, a method for controlling a gas turbine engine with an engine model can be implemented for an engine comprising multiple cans. The method can include obtaining operating frequency information associated with multiple cans of the engine. In addition, the method can include determining variation between operating frequency information of at least two cans. Furthermore, the method can include determining a median value based at least in part on the variation. Moreover, the method can include inputting the median value to an engine model, wherein based at least in part on the median value, the engine model determines an engine control action. In addition, the method can include outputting a control command to implement the engine control action. | 01-01-2009 |
| 20100220182 | SYSTEM AND METHOD FOR ADJUSTING ENGINE PARAMETERS BASED ON FLAME VISUALIZATION - In one embodiment, a system includes an engine that includes a combustion chamber and a viewing port into the combustion chamber. The engine also includes a camera configured to obtain an image of a flame in the combustion chamber through the viewing port and a controller configured to adjust a parameter of the engine based on the image of the flame. | 09-02-2010 |
| 20110107765 | COUNTER ROTATED GAS TURBINE FUEL NOZZLES - In certain embodiments, a system includes a gas turbine controller. The gas turbine controller includes a first operational mode enabling fuel flow only through a first plurality of fuel nozzles having a first swirl direction. The gas turbine controller also includes a second operational mode enabling fuel flow only through a second plurality of fuel nozzles having a second swirl direction opposite from the first swirl direction. | 05-12-2011 |
| Patent application number | Description | Published |
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| 20090043447 | Systems and Methods for Model-Based Sensor Fault Detection and Isolation - The systems and method may include receiving a plurality of measured tuning inputs associated with an operating parameter of an engine, providing a plurality of parameter estimation modules that utilize one or more component performance maps having adjustable knobs to generate model outputs, where each parameter estimation module is configured independently of a respective one of the operating parameters of the engine, and where each parameter estimation module generates the model outputs based upon fundamental inputs associated with the engine. The systems and methods may further include calculating residual values for each parameter estimation module, adjusting knobs of each parameter estimation module, and determining that a sensor associated with a measured tuning input or a fundamental input is faulty based at least in part upon values of the knobs and residual values. | 02-12-2009 |
| 20090064682 | METHOD AND SYSTEM TO DETERMINE COMPOSITION OF FUEL ENTERING COMBUSTOR - Disclosed is a method and system for determining composition of a fuel entering a combustor. The method includes determining a temperature of the fuel entering the combustor, calculating a first estimated total fuel flow utilizing fuel properties and fuel nozzle effective area (A | 03-12-2009 |
| 20090183492 | COMBUSTION LEAN-BLOWOUT PROTECTION VIA NOZZLE EQUIVALENCE RATIO CONTROL - Disclosed is a method and system for controlling a combustor of a gas turbine utilizing fuel nozzle equivalence ratio. The equivalence ratio of at least one fuel nozzle of the combustor, the combustor having at least one fuel nozzle disposed in at least one combustor can, is measured. The measured equivalence ratio is compared to a threshold value for lean blowout. The fuel flow from the at least one nozzle is modified thereby adjusting the equivalence ratio to prevent lean blowout. | 07-23-2009 |
| 20100011851 | METHOD AND SYSTEM TO DETERMINE COMPOSITION OF FUEL ENTERING COMBUSTOR - Disclosed is a method and system for determining composition of a fuel entering a combustor. The method includes determining a temperature of the fuel entering the combustor, calculating a first estimated total fuel flow utilizing fuel properties and fuel nozzle effective area (A | 01-21-2010 |
| 20100175384 | Optical Flame Holding And Flashback Detection - Optical flame holding and flashback detection systems and methods are provided. Exemplary embodiments include a combustor including a combustor housing defining a combustion chamber having combustion zones, flame detectors disposed on the combustor housing and in optical communication with the combustion chamber, wherein each of the flame detectors is configured to detect an optical property related to one or more of the combustion zones. | 07-15-2010 |
| 20100275573 | FUEL NOZZLE FLASHBACK DETECTION - A combustor of a turbine engine having a combustion zone defined therein is provided and includes a fuel nozzle, including two or more burners, each of the burners having a passage defined therein through which combustible materials are permitted to travel toward the combustion zone, a plurality of sensors disposed in relative association with each of the burners to respectively sense static pressures within the passages of each of the burners and to respectively issue sensed static pressure signals accordingly, and a controller, coupled to the sensors and receptive of the signals, which is configured to determine from an analysis of the signals whether any of the burners are associated with a flashback risk and to mitigate the flashback risk in accordance with the determination. | 11-04-2010 |
