摘要:
A combustor (56) of a gas turbine engine (20) includes an axial fuel injection system (92) in communication with a combustion chamber (56), the axial fuel injection system (92) operable to supply a first percentage of fuel and a radial fuel injection system (120) that communicates with the combustion chamber (56) downstream of the axial fuel injection system (92), the radial fuel injection system (120) operable to supply a second percentage of fuel, the first percentage and the second percentage of fuel scheduled in response to an engine operating parameter.
摘要:
A system includes a gas turbine engine having a combustor (10), a liquid fuel supply (50) coupled to the combustor (16), and a water supply (15) coupled to the liquid fuel supply (50). The water supply (15) is configured to flow water (15) through the liquid fuel supply (50) while the liquid fuel supply (50) is not in use to flow a liquid fuel (42).
摘要:
A system includes a network of a plurality of sensing / control / identification devices (68A, 68B) distributed throughout a machine, each of the sensing / control / identification devices (68A, 68B) associated with at least one sub-system component (70, 74) of the machine and operable to communicate through a plurality of electromagnetic signals (86). Shielding (84) surrounds at least one of the sensing / control / identification devices (68A, 68B) to contain the electromagnetic signals (86) proximate to the at least one sub-system component. A communication path is integrally formed in a component of the machine to route a portion of the electromagnetic signals (86) through the component and a remote processing unit (66) operable to communicate with the network of the sensing / control / identification devices (68A, 68B) through the electromagnetic signals, wherein at least a portion of the sensing / control / identification devices (68A, 68B) comprise a wide band gap semiconductor device.
摘要:
A method for monitoring and controlling a gas turbine (10), comprises predicting (86) frequencies of combustion dynamics in a combustor (14) using operating conditions (40) of a gas turbine (10), receiving (88) a signal (38) from a sensor (36) that is indicative of combustion dynamics in the combustor (14), and detecting (94) a flashback if a frequency of the received signal does not correspond to the predicted frequencies.
摘要:
A system includes an engine (10) that includes a combustion chamber (16) and a viewing port (36) into the combustion chamber (16). The engine (10) also includes a camera (38) configured to obtain an image of a flame (80) in the combustion chamber (16) through the viewing port (36) and a controller (42) configured to adjust a parameter of the engine (10) based on the image of the flame (80).
摘要:
Provided are more efficient techniques for operating gas turbine systems. In one embodiment a gas turbine system comprises an oxidant system, a fuel system, a control system, and a number of combustors adapted to receive and combust an oxidant from the oxidant system and a fuel from the fuel system to produce an exhaust gas. The gas turbine system also includes a number of oxidant-flow adjustment devices, each of which are operatively associated with one of the combustors, wherein an oxidant-flow adjustment device is configured to independently regulate an oxidant flow rate into the associated combustor. An exhaust sensor is in communication with the control system. The exhaust sensor is adapted to measure at least one parameter of the exhaust gas, and the control system is configured to independently adjust each of the oxidant-flow adjustment devices based, at least in part, on the parameter measured by the exhaust sensor.
摘要:
A system (200) for modifying the operation and/or performance of a gas turbine (205) comprising one or more combustors, the system comprising at least one sensor (240) for determining a gas exhaust temperature (220) for the gas turbine, and a controller (245) operable to receive the gas exhaust temperature from the at least one sensor, estimate a transient heat transfer rate (225) for the gas turbine based at least in part on the gas exhaust temperature, and control the one or more combustors based at least in part on the estimated transient heat transfer rate for the gas turbine.
摘要:
A fuel system comprises a fuel actuation arrangement 28 operable to split a metered flow of fuel into at least a first stream and a second stream, a control unit 25 controlling the operation of the fuel actuation arrangement 28, and wherein the control unit 25 controls the operation of the fuel actuation arrangement 28 in response to the output of a temperature sensor 34 sensitive to a gas temperature downstream of the high pressure compressor 14 of an associated engine and the output of a gas sensor 24 sensitive to at least one parameter of the composition of a gas downstream of a combustor 15 of the engine.