摘要:
A method and apparatus for controlling a flame stability at a gas turbine generator 100 is disclosed. The method includes forming combustible mixtures at a plurality of fuel nozzles 612 of a combustor of the gas turbine generator; altering an oxygen concentration of at least one of the combustible mixtures at a selected fuel nozzle of the plurality of fuel nozzles 612; and burning the combustible mixtures at the plurality of fuel nozzles 612 to control the flame stability at the gas turbine generator 100.
摘要:
A combustion nozzle 28 includes at least one passage 30 having a mixing section 32 and an exit section 34. The mixing section includes an air inlet, and a fuel inlet. The mixing section has a first length and a first diameter. The exit section has a second length different from the first length, and a second diameter different from the first diameter.
摘要:
A control system (130) for use with a turbine engine (100) that is configured to operate at a rated power output is provided. The control system includes a computing device (200) that includes a processor (214) that is programmed to calculate an amount of fluid to be supplied for combustion in the turbine engine. The processor is also programmed to designate at least one nozzle of a plurality of nozzles to receive the fluid. Moreover, the control system includes at least one control valve (201) coupled to the computing device. The control valve (201) is configured to receive at least one control parameter from the computing device (200) for use in modulating the amount of the fluid to be channeled to the nozzle such that the rated power output is generated while emission levels are maintained below a predefined emissions threshold level.
摘要:
A premixing apparatus (110) for a gas turbine system includes non-swirl elements (220) around a face (210) of the premixing apparatus (110) and one or more swirl assemblies (230) located on the face. The non-swirl elements (220) premix a premixture prior to the premixture being delivered to a combustor of the gas turbine system. Each swirl assembly (230) disturbs a flow of fluid prior to the fluid being delivered to the combustor. The premixture includes fuel and oxidant, and the fluid disturbed by the swirl assembly (230) includes the oxidant or the premixture.
摘要:
A control system (130) for use with a turbine engine (100) that is configured to operate at a rated power output is provided. The control system includes a computing device (200) that includes a processor (214) that is programmed to calculate an amount of fluid to be supplied for combustion in the turbine engine. The processor is also programmed to designate at least one nozzle of a plurality of nozzles to receive the fluid. Moreover, the control system includes at least one control valve (201) coupled to the computing device. The control valve (201) is configured to receive at least one control parameter from the computing device (200) for use in modulating the amount of the fluid to be channeled to the nozzle such that the rated power output is generated while emission levels are maintained below a predefined emissions threshold level.
摘要:
A system for providing hydrogen enriched fuel includes first and second gas turbines 12,14. The second gas turbine 14 receives a fuel from a fuel supply and portion 36 of compressed working fluid from the first gas turbine 12 and produces a reformed fuel, and a fuel skid 20 provides fluid communication between a turbine 54 in the second gas turbine 14 and a combustor 24 in the first gas turbine 12. A method for providing hydrogen enriched fuel includes diverting a portion of a first compressed working fluid from a first compressor to a second compressor and providing a second compressed working fluid from the second compressor. Mixing a first portion of a compressed fuel with the second compressed working fluid in a reformer to produce a reformed fuel, flowing a second portion of the compressed fuel to a second turbine for cooling, and flowing the reformed fuel through the second turbine to cool the reformed fuel.
摘要:
A combustor (10) includes an end cap (28). The end cap (28) includes a first surface (30) and a second surface (32) downstream from the first surface (30), a shroud (24) that circumferentially surrounds at least a portion of the first and second surfaces (30,32), a plate (34) that extends radially within the shroud (24), a plurality of tubes (36) that extend through the plate (34) and the first and second surfaces (30,32), and a first purge port that extends through one or more of the plurality of tubes, (36) wherein the purge port is axially aligned with the plate (34).
摘要:
A method for reducing emissions in a turbo machine is disclosed. The method includes providing fuel to a multi-tube nozzle (10) and reducing the differences in the mass flow rate of fuel into each tube (15). An improved multi-tube nozzle (10) is also disclosed. The nozzle (9) includes an assembly (23, 29) that reduces the difference in the mass flow rate of fuel into each tube (15).
摘要:
Compensation is provided for a fuel demand signal of a gas turbine controller 110 during transition between operating modes. The compensation adjusts fuel demand to account for combustion efficiency differences between the starting and ending operating mode that otherwise can lead to severe swings in combustion reference temperature and lean blowout.