Added In Mixing Nozzle Or In Turbine Nozzle Patents (Class 60/39.58)
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Patent number: 9523311Abstract: Reliable, low-NOx-emission operation of a gas turbine plant with hydrogen-rich fuel gas, and a gas turbine plant with a device for water injection into hydrogen-rich fuels in a gas turbine, involves suitable water injection (21), a water-fuel gas mist, i.e., a fuel gas in which fine water droplets are suspended, is created in the fuel gas feed line (15). This mist is introduced into the burners (20) of the gas turbine. As a result of the water-fuel gas mist, four effects are combined for ignition delay and reduction of the flame velocity of hydrogen-rich fuel gas. When using a water-fuel gas mist, the water, in a directed manner, reaches the region in the burner (20) in which it directly has the greatest possible effect upon the flame or the flame velocity.Type: GrantFiled: November 6, 2009Date of Patent: December 20, 2016Assignee: GENERAL ELECTRIC TECHNOLOGY GMBHInventors: Richard Carroni, Gianfranco Guidati
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Patent number: 9410409Abstract: A low-emission and environmentally-friendly apparatus and method is used to generate a high-pressure stream of thermal vapor. The thermal vapor stream may be injected into a subsurface petroleum-bearing formation for recovery of highly viscous petroleum or used to turn a steam turbine for driving an electrical generator. In one implementation, the high-pressure stream of thermal vapor is generated by burning a high-temperature fuel, including any short or long chain hydrocarbon products from methane to coal, in an enclosed vessel to produce combustion gases. Various cooling techniques, including regenerative cooling, may be employed to maintain the internal temperature of the vessel below a predefined safe level. The high-pressure thermal vapor stream may then be used to enhance recovery of highly viscous petroleum.Type: GrantFiled: March 15, 2013Date of Patent: August 9, 2016Assignee: EOR Technology LLCInventors: Richard W. Krajicek, Robert J. Bakos, Dean P. Modroukas
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Patent number: 9267433Abstract: A system includes a turbine fuel supply system. The turbine fuel supply system includes a first turbine fuel mixer configured to mix a first liquid fuel and a first deaerated water to generate a first fuel mixture. The first fuel mixture is configured to combust in a combustor of a gas turbine engine. The turbine fuel supply system also includes a deaerated water flow path configured to route the first deaerated water to the first turbine fuel mixer and a liquid fuel flow path configured to route the first liquid fuel to the first turbine fuel mixer.Type: GrantFiled: October 24, 2011Date of Patent: February 23, 2016Assignee: General Electric CompanyInventors: Hua Zhang, Douglas Frank Beadie, Geoffrey David Myers, Fabien Thibault Codron, William Thomas Ross
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Patent number: 8931282Abstract: An internal combustion engine in which the power output is controlled by modulating at least one of the compression ratio, expansion ratio, ratio of expansion rate to compression rate, air to fuel ratio, and steam to air ratio. Continuous isobaric catalytic combustion followed by isothermal expansion and the use of separate compressor and expander devices are used. Control dynamically maximizes fuel efficiency for the given power demand conditions. Power output is controlled by modulating flame temperature and/or pressure instead of by throttling. Lean combustion, high compression ratio, exhaust heat recuperation, and high power density and fuel economy are provided. External cooling is minimized or eliminated. Insulation of the engine effectively reduces energy losses to friction. Interchangeable use of gasoline, hydrogen and ammonia at high fuel efficiency is made possible for transitional periods of fuel availabilities. An injector suitable for isothermal expansion is provided.Type: GrantFiled: April 3, 2012Date of Patent: January 13, 2015Inventor: Jonathan Jay Feinstein
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Publication number: 20140338353Abstract: An arrangement for injection of an emulsion of a first fluid and a second fluid into a flame of a burner has a central gas duct, an outer gas channel disposed coaxially with the gas duct, and a fluid channel disposed coaxially between the gas duct and the outer gas channel. The central gas duct and the fluid channel are separated by a first frustoconical wall. The fluid channel and the outer gas channel are separated by a second frustoconical wall. The arrangement is mounted concentrically surrounding a heat source which provides through the gas duct hot gases being directed into the flame of the burner. Further, the arrangement includes a mixing device for forming an emulsion of the first fluid and the second fluid, for supplying the emulsion into the fluid channel and for injecting the emulsion from the fluid channel into the flame.Type: ApplicationFiled: August 7, 2014Publication date: November 20, 2014Inventor: Vladimir Dusan Milosavljevic
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Patent number: 8656724Abstract: An engine that oxidizes aluminum with water to produce electrical and/or mechanical power. The engine can include a fuel made at least partly from aluminum powder that flows like liquid under high pressure. The engine can also include a steam supply system, a combustor, a fuel feed system, a fuel injection system, and a water supply system.Type: GrantFiled: April 12, 2011Date of Patent: February 25, 2014Assignee: The Penn State Research FoundationInventors: Thomas Cawley, Brian Lowery, Timothy F. Miller, John Herr, Martin Klanchar, Daniel H. Kiely
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Publication number: 20130227955Abstract: A system for reducing combustion dynamics in a combustor includes an end cap having an upstream surface axially separated from a downstream surface, and tube bundles extend through the end cap. A diluent supply in fluid communication with the end cap provides diluent flow to the end cap. Diluent distributors circumferentially arranged inside at least one tube bundle extend downstream from the downstream surface and provide fluid communication for the diluent flow through the end cap. A method for reducing combustion dynamics in a combustor includes flowing fuel through tube bundles that extend axially through an end cap, flowing a diluent through diluent distributors into a combustion chamber, wherein the diluent distributors are circumferentially arranged inside at least one tube bundle and each diluent distributor extends downstream from the end cap, and forming a diluent barrier in the combustion chamber between at least one pair of adjacent tube bundles.Type: ApplicationFiled: March 1, 2012Publication date: September 5, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Jong Ho Uhm, Thomas Edward Johnson, Baifang Zuo, William David York
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Publication number: 20130227928Abstract: A fuel nozzle for use with a turbine engine is provided. The fuel nozzle includes a housing coupled to a combustor liner defining a combustion chamber. The housing is at least partially positioned within an air plenum and comprises an endwall that at least partially defines the air plenum. The fuel nozzle includes a plurality of mixing tubes extending through the housing for channeling a fuel to the combustion chamber, a cooling fluid plenum at least partially defined within the housing by the housing endwall, and a plurality of apertures defined within the housing endwall for channeling a cooling fluid from the cooling fluid plenum to the air plenum.Type: ApplicationFiled: March 1, 2012Publication date: September 5, 2013Inventors: Jong Ho Uhm, Thomas Edward Johnson
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Publication number: 20130213051Abstract: A combustor includes an end cap having upstream and downstream surfaces and a cap shield surrounding the upstream and downstream surfaces. First and second sets of premixer tubes extend from the upstream surface through the downstream surface. A first fuel conduit supplies fuel to the first set of premixer tubes. A casing circumferentially surrounds the cap shield to define an annular passage, and a second fuel conduit supplies fuel through the annular passage to the second set of premixer tubes. A method for supplying fuel to a combustor includes flowing a working fluid through first and second sets of premixer tubes, flowing a first fuel into the first set of premixer tubes, and flowing a second fuel through an annular passage surrounding the end cap and into the second set of premixer tubes.Type: ApplicationFiled: February 20, 2012Publication date: August 22, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: James Harold Westmoreland, III, Patrick Benedict Melton
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Patent number: 7827776Abstract: A power generation system. The exemplary system shown in FIGS. 1 and 2 includes a gas turbine (28), a gasifier (10) for generating gaseous fuel and a gas combustor (26) configured to receive the fuel and power the gas turbine (28). A drain collection and separation system (5) is positioned to collect gaseous fuel entrained in liquid and to separate the gaseous fuel from the liquid so the gaseous fuel can be cycled or disposed of separately from the liquid.Type: GrantFiled: November 16, 2006Date of Patent: November 9, 2010Assignee: Siemens Energy, Inc.Inventors: Jack Douglas Moore, Damien G. Teehan, Christopher J. Davila-Aponte
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Patent number: 7451602Abstract: A method facilitates operating a gas turbine engine. The method comprises supplying steam and primary fuel to a chamber within a nozzle, mixing the primary fuel and steam within the chamber, and discharging the mixture into a combustor from a plurality of circumferentially spaced mixture outlets.Type: GrantFiled: November 7, 2005Date of Patent: November 18, 2008Assignee: General Electric CompanyInventors: Steve Marakovits, Mark Durbin
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Patent number: 6598801Abstract: A nozzle for a gas turbine engine that includes an air circuit, a water circuit, and a swirler that facilitate reducing erosion within the nozzle is described. The air circuit is formed by a first conduit that extends along the nozzle. The water circuit is formed by a second conduit that also extends along the nozzle and is radially inward from the first conduit. Each circuit is in flow communication with a discharge opening. An air swirler adjacent the discharge opening discharges air into water spray exiting the water circuit to facilitate evaporating the water to lower engine operating temperatures.Type: GrantFiled: November 17, 2000Date of Patent: July 29, 2003Assignee: General Electric CompanyInventors: Douglas Marti Fortuna, Mark Patrick Kelsey, Neil Sidney Rasmussen, James Anthony Groeschen
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Patent number: 6484506Abstract: Combustion turbine power plants and methods of operating the same are provided in which air is cooled using solar energy and supplied to an air inlet of the power plant to support combustion. Also, combustion turbine power plants and methods of operating the same are provided in which steam is produced using solar energy and injected into a turbine of the power plant.Type: GrantFiled: August 26, 1999Date of Patent: November 26, 2002Assignee: York Research Corp.Inventors: Alphonse H. Bellac, Ronald Destefanis
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Patent number: 6393823Abstract: A fuel delivery system for fuel nozzle staging includes a gas circuit and a fuel circuit. Each circuit includes a first manifold and a second manifold. The fuel delivery system delivers a first gas and a first fuel to a gas turbine engine during initial operation through the first manifold connected within each respective gas circuit. As the gas turbine engine reaches a predetermined operational speed, staging valves permit the fuel delivery system to also deliver the first gas and the first fuel to the gas turbine engine through the second manifold of each respective gas circuit.Type: GrantFiled: November 5, 1999Date of Patent: May 28, 2002Assignee: General Electric CompanyInventor: Gilbert H. Badeer
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Patent number: 6389800Abstract: A fuel delivery system for fuel nozzle staging includes a gas circuit and a fuel circuit. Each circuit includes a first manifold and a second manifold. The fuel delivery system delivers a first gas and a first fuel to a gas turbine engine during initial operation through the first manifold connected within each respective gas circuit. As the gas turbine engine reaches a predetermined operational speed, staging valves permit the fuel delivery system to also deliver the first gas and the first fuel to the gas turbine engine through the second manifold of each respective gas circuit.Type: GrantFiled: August 28, 2001Date of Patent: May 21, 2002Assignee: General Electric CompanyInventor: Gilbert H. Badeer
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Patent number: 6293088Abstract: This invention relates to a combustion turbine power plant having a gas turbine. The plant includes a compressor for generating a compressed gas stream, a fuel delivery system for supplying a combustible fuel to the gas turbine, a combustor for receiving the compressed gas stream and fuel and generating a high temperature working gas, a turbine section for receiving the working gas from the combustor and expanding the working gas through the turbine section to produce rotating shaft power, a steam generator for supplying cooling steam to components of either the combustor and/or the turbine to extract heat therefrom and cool the same and, a steam outlet manifold for collecting the cooling steam and selectively directing at least a portion thereof to either, or both, the fuel delivery system to atomize the fuel oil entering said combustor or the turbine to augment the power output of the turbine.Type: GrantFiled: November 29, 1999Date of Patent: September 25, 2001Assignee: Siemens Westinghouse Power CorporationInventors: Jack D. Moore, Brad A. Steinebronn
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Patent number: 6263664Abstract: In a combined steam and gas turbine engine cycle, a combustion chamber is made durable against high pressure and enlarged in length to increase the operation pressure ratio, without exceeding the heat durability temperature of the system while increasing the fuel combustion gas mass flow four times as much as the conventional turbine system and simultaneously for greatly raising the thermal efficiency of the system and specific power of the combined steam and gas turbine engine. Water pipes and steam pipes are arranged inside the combustion chamber so that the combustion chamber can function as a heat exchanger and thereby convert most of the combustion thermal energy into super-critical steam energy for driving a steam turbine and subsequently raising the operation pressure ratio and the thermal efficiencies of the steam turbine cycle and gas turbine cycle.Type: GrantFiled: December 16, 1998Date of Patent: July 24, 2001Inventors: Hiroyasu Tanigawa, Kazunaga Tanigawa
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Patent number: 6250065Abstract: Liquid fuel purge device uses water, not compressed air as in the prior art, thereby prevented are rapid load change of gas turbine due to sudden discharge of liquid fuel and coking of remaining liquid fuel. Upon supply of liquid fuel to fuel nozzle (05) being stopped, water purge system (15) having stop valve (16) supplies water into fuel system including liquid fuel system (08) and fuel nozzle (05) and liquid fuel remaining therein is purged by water into combustion chamber (013) from the fuel nozzle (05).Type: GrantFiled: April 15, 1999Date of Patent: June 26, 2001Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Shigemi Mandai, Tetsuo Gora, Koichi Nishida, Masataka Ota, Ichiro Fukue, Shinji Akamatsu, Satoshi Tanimura, Hideki Haruta, Tomohisa Takasaki, Teruya Tachibana
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Patent number: 6212872Abstract: A pressurized fluidized bed combined electricity generation system for improving gas turbine output increases and prevention of surging is provided. This pressurized fluidized bed combined electricity generation system is a combined electricity generation system including a steam turbine; a pressurized fluidized bed boiler for generating steam for supply to the steam turbine by combusting air from an air supply system and fuel from a fuel supply system; a gas turbine driven by exhaust gas such as combustion gas from the pressurized fluidized bed boiler and the air; and a compressor directly coupled to the gas turbine.Type: GrantFiled: July 6, 1999Date of Patent: April 10, 2001Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Katsuhiko Abe, Makoto Kato, Yoshinori Hyakutake, Satoshi Uchida, Yoshifumi Masuda, Fuminori Fujii