-
公开(公告)号：US09927818B2
公开(公告)日：2018-03-27
申请号：US14213122
申请日：2014-03-14
Applicant: Ansaldo Energia IP UK Limited
Inventor： Hany Rizkalla , Donald Gauthier , Sumit Soni , Peter John Stuttaford
CPC classification number: G05D7/0676 , F02C7/228 , F02C9/28 , F02C9/34 , F05D2270/082 , F05D2270/301 , F05D2270/31 , F23N2041/20 , F23R3/343 , F23R3/346
Abstract: Methods and systems are provided for automatically tuning a combustor of a gas turbine engine during a transient period, such as when a state of the gas turbine engine is changing. Once it has been determined whether the state of the gas turbine engine is changing, it is then determined whether a lean blowout is imminent, which is based conditions being monitored. A stability bias is applied to the system if either the state is changing or if lean blowout is imminent until the lean blowout is no longer determined to be imminent. The stability bias monitors operating conditions of the gas turbine engine and determines when one of the operating conditions has overcome a threshold value. Once a threshold value is overcome, a fuel flow fraction is adjusted by a predefined increment. The application of the stability bias is gradually terminated once it is determined that the lean blowout is no longer imminent.
-
公开(公告)号：US09890714B2
公开(公告)日：2018-02-13
申请号：US14610760
申请日：2015-01-30
Applicant: ANSALDO ENERGIA IP UK LIMITED
Inventor： Sumit Soni , Nicolas Roger Demougeot , Peter John Stuttaford
CPC classification number: F02C9/28 , F02C7/228 , F02C9/34 , F05D2260/80 , F05D2270/05 , F05D2270/082 , F05D2270/301 , F05D2270/31 , F23N2041/20 , F23R3/343 , F23R3/346 , F23R2900/00013
Abstract: An auto-tune controller and tuning process implemented thereby for measuring and tuning the combustion dynamics and emissions of a GT engine, relative to predetermined upper limits, are provided. Initially, the tuning process includes monitoring the combustion dynamics of a plurality of combustors and emissions for a plurality of conditions. Upon determination that one or more of the conditions exceeds a predetermined upper limit, a fuel flow split to a fuel circuit on all of the combustors on the engine is adjusted by a predetermined amount. The control system continues to monitor the combustion dynamics and to recursively adjust the fuel flow split by the predetermined amount until the combustion dynamics and/or emissions are operating within a prescribed range of the GT engine. Additionally, a method of automated extended turndown of a GT engine to find a minimum load is provided.
-
公开(公告)号：US09897317B2
公开(公告)日：2018-02-20
申请号：US14038038
申请日：2013-09-26
Applicant: ANSALDO ENERGIA IP UK LIMITED
Inventor： Peter John Stuttaford , Stephen Jorgensen , Hany Rizkalla
CPC classification number: F23R3/002 , B23K1/0008 , B23K31/02 , F23R3/60 , F23R2900/00017 , F23R2900/00018 , Y10T29/49826
Abstract: The present invention discloses a novel and improved device and method for securing a combustion liner within a gas turbine combustor. The improved configuration comprises a plurality of equally spaced support tab assemblies secured about the combustion liner and positioned radially outward of the combustion zone. The support tab assemblies comprise parallel liner tabs which provide increased flexibility, greater structural support, and lower operating stresses.
-
公开(公告)号：US09803560B2
公开(公告)日：2017-10-31
申请号：US14213337
申请日：2014-03-14
Applicant: ANSALDO ENERGIA IP UK LIMITED
Inventor： Peter John Stuttaford , Sumit Soni , Donald Gauthier , Hany Rizkalla
CPC classification number: F02C9/22 , F02C9/00 , F02C9/48 , F05D2260/964 , G05B15/02
Abstract: A method for tuning a combustor of a gas turbine engine based on one or more monitored operating conditions is provided. One or more operating conditions of the gas turbine engine are monitored. The monitored operating conditions may include, for example, a low frequency tone, a high frequency tone, and a ratio of the low frequency tone to the high frequency tone. It is determined whether the ratio of the low frequency tone to the high frequency tone is within a first predefined normal range. If the ratio of the low frequency tone to the high frequency tone is within the first predefined normal range, a determination is made not to tune the gas turbine engine. But, if the ratio of the low frequency tone to the high frequency tone is not within the first predefined normal range, a determination is made to tune the gas turbine engine.
-
公开(公告)号：US09765702B2
公开(公告)日：2017-09-19
申请号：US14213366
申请日：2014-03-14
Applicant: ANSALDO ENERGIA IP UK LIMITED
Inventor： Donald Gauthier , Hany Rizkalla , Peter John Stuttaford
CPC classification number: F02C9/22 , F02C9/00 , F02C9/48 , F05D2260/964 , G05B15/02
Abstract: Methods are provided for ensuring non-excessive variation of a gradient of an applied split bias versus firing temperature of a gas turbine engine. It is determined that an incremental split bias step is to be taken, and a current firing temperature of the gas turbine engine is identified on a graph. A first difference between a split schedule and an applied schedule gradient is calculated using lower firing temperatures than the current firing temperature, and a second difference is calculated using higher firing temperatures. If the first difference exceeds a predetermined limit, the incremental split bias step is not allowed at a lower firing temperature, and similarly, if the second difference exceeds a predetermined limit, the incremental split bias step is not allowed at a higher firing temperature.
-
Patent Agency Ranking
公开(公告)号：US10718525B2
公开(公告)日：2020-07-21
申请号：US15194203
申请日：2016-06-27
Applicant: ANSALDO ENERGIA IP UK LIMITED
Inventor： Stephen W. Jorgensen , Joshua R. McNally , Douglas Pennell , Donald Gauthier , Pawel Matys , Marc Paskin , Thomas R. Ruck , Peter John Stuttaford , Bernard Tam-Yen Sam
IPC: F23R3/28 , F23R3/20 , F23R3/14 , F23R3/36 , F02C7/22 , F23R3/34 , F23R3/44 , F23R3/54 , F23R3/00 , F02C7/232
Abstract: Systems and methods for dual-fuel operation of a gas turbine combustor are provided. An exemplary gas turbine combustor may comprise one or more components, such as a cylindrical combustion liner, a flow sleeve, a main mixer, a radial inflow swirler, a combustor dome, and a fuel cartridge assembly, one or more of which may be configured to supply either a gaseous or a liquid fuel to the combustion liner, depending on whether gaseous fuel operation or liquid fuel operation of the combustor is desired.
-
公开(公告)号：US10571128B2
公开(公告)日：2020-02-25
申请号：US15194209
申请日：2016-06-27
Applicant: ANSALDO ENERGIA IP UK LIMITED
Inventor： Stephen W. Jorgensen , Joshua R. McNally , Douglas Pennell , Donald Gauthier , Pawel Matys , Marc Paskin , Thomas R. Ruck , Peter John Stuttaford , Bernard Tam-Yen Sam
IPC: F23R3/28 , F23R3/34 , F23R3/44 , F23R3/54 , F23R3/20 , F23R3/00 , F23R3/14 , F23R3/36 , F02C7/22 , F02C7/232
Abstract: Gas turbine combustion systems and fuel cartridge assemblies are provided. An exemplary combustion system may comprise a combustor including one or more components, such as a cylindrical combustion liner, a flow sleeve, a main mixer, a radial inflow swirler, a combustor dome, and a fuel cartridge assembly. An exemplary fuel cartridge assembly may comprise first and second fuel manifolds which are connected to respective fuel circuits which supply fuel, such as liquid fuel, through a plurality of fuel passages within the fuel cartridge assembly or to other locations within an associated combustor. The fuel cartridge assembly may further include a plurality of fuel injector tips located at a tip plate of the fuel cartridge assembly through which fuel may be supplied to an associated combustor.
-
公开(公告)号：US10060630B2
公开(公告)日：2018-08-28
申请号：US14549922
申请日：2014-11-21
Applicant: ANSALDO ENERGIA IP UK LIMITED
Inventor： Peter John Stuttaford , Hany Rizkalla
CPC classification number: F23R3/54 , F23C2201/20 , F23C2900/06043 , F23C2900/07001 , F23R3/14 , F23R3/16 , F23R3/286 , F23R3/34 , F23R3/343 , F23R2900/00014 , F23R2900/03343
Abstract: The present invention discloses a novel apparatus and way for reducing the recirculation zone at the inlet end of a combustor. The recirculation zone is reduced by altering the geometry of the inlet end through a tapering of the liner wall thickness and a tapering of the thermal barrier coating to reduce the bluff body effect at the combustion liner inlet end.
-
公开(公告)号：US09851107B2
公开(公告)日：2017-12-26
申请号：US14334918
申请日：2014-07-18
Applicant: ANSALDO ENERGIA IP UK LIMITED
Inventor： Peter John Stuttaford , Paul Economo , Stephen Jorgensen , Donald Gauthier , Timothy Hui
Abstract: The present invention discloses a novel and improved apparatus and method for reducing the emissions of a gas turbine combustion system. More specifically, a combustion system is provided having a first combustion chamber and a premixer positioned proximate an outlet end of a combustion liner for mixing a second fuel/air mixture with hot combustion gases and burning the subsequent mixture to achieve reduced emissions levels. The premixer is positioned generally about the combustion liner and includes a plurality of channels and fuel injectors for introducing a fuel/air mixture, induced with a swirl, into a second, axially staged combustor.
-
公开(公告)号：US09752781B2
公开(公告)日：2017-09-05
申请号：US14038064
申请日：2013-09-26
Applicant: ANSALDO ENERGIA IP UK LIMITED
Inventor： Peter John Stuttaford , Stephen Jorgensen , Timothy Hui , Yan Chen , Hany Rizkalla , Khalid Oumejjoud
CPC classification number: F23R3/54 , F23C2201/20 , F23C2900/06043 , F23C2900/07001 , F23R3/14 , F23R3/16 , F23R3/26 , F23R3/286 , F23R3/34 , F23R3/343 , F23R3/60 , F23R2900/00014 , F23R2900/03343
Abstract: The present invention discloses a novel apparatus and way for controlling a velocity of a fuel-air mixture entering a gas turbine combustion system. The apparatus comprises a hemispherical dome assembly which directs a fuel-air mixture along a portion of the outer wall of a combustion liner and turns the fuel-air mixture to enter the combustion liner in a manner coaxial to the combustor axis and radially outward of a pilot fuel nozzle so as to regulate the velocity of the fuel-air mixture.
-
-
-
-
-
-
-
-
-
Search Results
10
records
(took 0.024 seconds)
