Adjustable fuel injector for flame dynamics control
AssigneeKing Abdullah University of Science and Technology
InventorsDeanna A. Lacoste, Thibault F. Guiberti, Amit Katoch
Life of this patent
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Abstract
An adjustable injector system for adjusting a radial distribution of a mixed fuel includes an adjustable injector configured to receive first and second non-carbon fuels and configured to adjust the radial distribution of the mixed fuel with a movable part, wherein the mixed fuel is obtained from mixing the first non-carbon fuel with the second non-carbon fuel; a sensor configured to determine an instability of a flame generated by the mixed fuel; and a controller electrically connected to the adjustable injector and the sensor, and configured to change a configuration of the adjustable injector, based on an input signal from the sensor, to control the radial distribution of the mixed fuel.
Claims20
An adjustable injector system for adjusting a radial distribution of a mixed fuel, the adjustable injector system comprising:
- an adjustable injector configured to receive first and second non-carbon fuels at first and second fuel chambers, respectively, and configured to adjust the radial distribution of the mixed fuel, within a third mixed fuel chamber, with a movable part, wherein the mixed fuel is obtained from mixing the first non-carbon fuel with the second non-carbon fuel and an outlet port, of the first fuel chamber, that opens into the second fuel chamber is fully blocked by the movable part;
- a sensor configured to determine an instability of a flame generated by the mixed fuel;
- and
- a controller electrically connected to the adjustable injector and the sensor, and configured to change a configuration of the adjustable injector, based on an input signal from the sensor, to control the radial distribution of the mixed fuel.
An adjustable injector for adjusting a radial distribution of a mixed fuel in the adjustable injector comprising:
- a body having a first fuel chamber configured to receive a first non-carbon fuel, a second fuel chamber configured to receive a second non-carbon fuel, and a third mixed fuel chamber configured to receive the mixed fuel, which is a mixture of the first fuel and the second fuel;
- a tube that extends into the first and second fuel chambers when the tube is in a fully retracted state, and extends into the first and second fuel chambers and the third mixed fuel chamber when the tube is in a fully extended state;
- and
- an actuator connected to the tube and configured to translate the tube along a longitudinal axis of the body, between the fully retracted position and the fully extend position, to adjust a radial distribution of the first and second non-carbon fuels inside the mixed fuel.
A method for controlling a radial distribution of a mixed fuel within a combustion chamber of a gas turbine, the method comprising:
- detecting with a sensor a fluctuation of a flame within a combustion chamber;
- transferring from the sensor to a controller a signal indicative of the fluctuation of the flame;
- determining in the controller an amplitude of the fluctuation of the flame, based on the signal indicative of the fluctuation of the flame;
- comparing the determined amplitude of the fluctuation of the flame with a given threshold value;
- and
- instructing an adjustable injector to change a radial distribution of first and second non-carbon fuels inside the combustion chamber to decrease the amplitude of the fluctuation of the flame,
- wherein the first and second non-carbon fuels are received at first and second fuel chambers, respectively, and mixed within a third mixed fuel chamber to generate the flame, and
- wherein an outlet port, of the first fuel chamber, that opens toward the second fuel chamber is fully blocked by a movable part of the adjustable injector.
Dependencies are inferred from the claim text.