With Exhaust Treatment Patents (Class 60/39.5)
  • Patent number: 10227896
    Abstract: Systems and methods for suppressing infrared radiation generated by a turbine engine. A system comprises a primary assembly having a center body, a plurality of vanes extending from the center body, an outer radial duct with the plurality of vanes extending therethrough, a structural baffle, and a mixer. The primary assembly is disposed in the exhaust flow path of a turbine engine and encased in ducting and/or an airfoil. An air flow path defined between the center body and outer radial duct is axially spit by an interface rim and flow segregator. The flow segregator segregates engine core flow from ambient air flow.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: March 12, 2019
    Assignees: ROLLS-ROYCE CORPORATION, ROLLS-ROYCE NORTH AMERICAN TECHNOLOGIES INC.
    Inventors: James C. Muskat, Todd S. Taylor, Mike Nesteroff, Eric Donovan, James Carl Loebig
  • Patent number: 10213738
    Abstract: The present invention relates generally to the field of emission control equipment for boilers, heaters, kilns, or other flue gas-, or combustion gas-, generating devices (e.g., those located at power plants, processing plants, etc.) and, in particular to a new and useful method and apparatus for reducing or preventing the poisoning and/or contamination of an SCR catalyst. In still another embodiment, the present invention relates to a method and apparatus for increasing the service life and/or catalytic activity of an SCR catalyst while simultaneously controlling various emissions. In yet another embodiment, the present invention relates to a method and apparatus for controlling, mitigating and/or reducing the amount of selenium contained in and/or emitted by one or more pieces of emission control equipment for boilers, heaters, kilns, or other flue gas-, or combustion gas-, generating devices (e.g., those located at power plants, processing plants, etc.).
    Type: Grant
    Filed: February 18, 2013
    Date of Patent: February 26, 2019
    Assignee: The Babcock & Wilcox Company
    Inventors: Mandar R Gadgil, Bryan J Jankura, Jeb W Gayheart
  • Patent number: 10077718
    Abstract: A method for operating a gas turbine plant having a gas turbine and an electric generator driven by the gas turbine. The method includes detecting an instantaneous power of the gas turbine plant; comparing the detected instantaneous power with a power limit value; and limiting the instantaneous power when the result of the comparison is that the detected instantaneous power is equal to or greater than the power limit value. A step of detecting at least one operating parameter of the gas turbine plant and a step of determining the power limit value as a function of the at least one detected operating parameter are then implemented, wherein the at least one operating parameter of the gas turbine plant includes an ambient pressure and the power limit value is increased when the ambient pressure increases.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: September 18, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventors: Jan-Dirk Beiler, Hans-Georg Gamm, Thomas Kerstiens, Marco Larson, Rosa-Eos Mühlhölzer, Florian Purps, Oliver Schneider, Marc Schäfer, Philipp Kreutzer, Marc Reinberg, Martin Stapper
  • Patent number: 10018057
    Abstract: A technique for mounting a turbine retention device is provided. The technique comprises forming openings in a diffuser, aligning a mounting bracket with the openings, and installing fasteners through the openings and the mounting bracket. A turbine retention device mounted to a diffuser may is also provided. The turbine retention device may comprise a bullet, wings coupled to the bullet, mounting brackets coupled to the wings, and fasteners disposed through the mounting brackets and openings formed in the diffuser.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: July 10, 2018
    Assignee: United Technologies Corporation
    Inventors: Stacey H. Light, Behzad Hagshenas
  • Patent number: 10005016
    Abstract: A gas turbine system may include an exhaust gas processing system configured to process exhaust gas received from a gas turbine engine of the system. An exhaust path of the exhaust processing system is configured to flow the exhaust gas through the exhaust processing system. A tempering air system of the exhaust processing system is configured to introduce tempering air into the exhaust path to cool the exhaust gas. The tempering air system includes a tempering air pathway extending from an air inlet of the tempering air system to a tempering air outlet where tempering air is introduced from the tempering air system and into the exhaust path. A filter system of the tempering air system has a hydrophobic filter positioned along the tempering air pathway, the hydrophobic filter being configured to remove hygroscopic and deliquescent materials from the air flowing through the tempering air pathway.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: June 26, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventor: Bradly Aaron Kippel
  • Patent number: 9995314
    Abstract: A gas turbine engine including a compressor section and a turbine section, coupled by one or more shafts, is provided. The compressor section progressively compresses air and includes an aft-stage of rotor blades rotatable about an axial direction of the gas turbine engine. A cooling system is included with the gas turbine engine for cooling compressed air in or from the compressor section. The cooling system includes a fluid tank for storing a volume of cooling fluid and one or more fluid lines in fluid communication with the fluid tank. The one or more fluid lines include an outlet positioned adjacent to the aft-stage of rotor blades for injecting cooling fluid into the compressed air proximate the aft-stage of rotor blades.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: June 12, 2018
    Assignee: General Electric Company
    Inventors: Brandon Wayne Miller, Jeffrey Anthony Hamel
  • Patent number: 9938900
    Abstract: A turbine exhaust case for a gas turbine engine includes a multiple of CMC turbine exhaust case struts between a CMC core nacelle aft portion and a CMC tail cone.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: April 10, 2018
    Assignee: United Technologies Corporation
    Inventors: Gabriel L. Suciu, Ioannis Alvanos, Brian D. Merry
  • Patent number: 9822670
    Abstract: A power generation system may include: a first gas turbine system including a first turbine component, a first integral compressor and a first combustor to which air from the first integral compressor and fuel are supplied. The first integral compressor has a flow capacity greater than an intake capacity of the first combustor and/or the first turbine component, creating an excess air flow. A second gas turbine system may include similar components to the first except but without excess capacity in its compressor. A turbo-expander may be operatively coupled to the second gas turbine system. Control valves may control flow of the excess air flow from the first gas turbine system to at least one of the second gas turbine system and the turbo-expander, and flow of a discharge of the turbo-expander to an inlet of at least one of the first integral compressor and the second compressor.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: November 21, 2017
    Assignee: General Electric Company
    Inventors: Sanji Ekanayake, Thomas John Freeman, Kihyung Kim, Alston Ilford Scipio, Leslie Yung Min Tong
  • Patent number: 9803548
    Abstract: The present invention discloses a novel apparatus and methods for augmenting the power of a gas turbine engine, improving gas turbine engine operation, and reducing the response time necessary to meet changing demands of a power plant. Improvements in power augmentation and engine operation include additional heated compressed air injection, steam injection, water recovery, exhaust tempering, fuel heating, and stored heated air injection.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: October 31, 2017
    Assignee: POWERPHASE LLC
    Inventors: Robert J. Kraft, Scott Auerbach, Peter A. Sobieski, Sergio A. Arias-Quintero
  • Patent number: 9702302
    Abstract: Methods and a sensor module for use in controlling operation of a gas turbine system are provided herein. The sensor module is coupled within a combustion system and is configured to obtain an aspirated exhaust sample of exhaust flowing through an exhaust duct. The exhaust is generated by the combustion system. The aspirated exhaust sample is analyzed to determine a plurality of exhaust parameters. The sensor module also controls at least one combustion system parameter in a closed loop emission control (CLEC) system based on at least one of the plurality of exhaust parameters.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: July 11, 2017
    Assignee: General Electric Company
    Inventors: Siddharth Aphale, Nilesh Tralshawala, Aarron Dell Johansen
  • Patent number: 9644491
    Abstract: A single bolting flange arrangement for variable inlet guide vane (VIGV) connection includes a connection arm connected to a stem of the VIGV to rotate the VIGV. The connection arm is driven by a drive pin received in a slot of the connection arm. The connection arm has a bolting flange and the stem of the VIGV is fastened to one side of the single bolting flange by a bolt/nut assembly.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: May 9, 2017
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Yongsheng Zhou, Tibor Urac, Esther Leung, Grigory Rukin, Noushin Bahramshahi, Yuhua Wu
  • Patent number: 9638067
    Abstract: A Rankine cycle waste heat recovery system associated with an internal combustion engine is in a configuration that enables handling of exhaust gas recirculation (EGR) gas by using the energy recovered from a Rankine cycle waste heat recovery system. The system includes a control module for regulating various function of the internal combustion engine and its associated systems along with the Rankine cycle waste heat recovery system.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: May 2, 2017
    Assignee: CUMMINS INTELLECTUAL PROPERTY, INC.
    Inventors: Christopher R. Nelson, Timothy C. Ernst
  • Patent number: 9617872
    Abstract: A hanger system for connecting components in a gas turbine engine has a first spaced component, a second spaced component arranged a desired distance from the first spaced component, and a plurality of spacers arranged between the first spaced component and the second spaced component. A T-bar having a shaft portion and a crossbar is arranged between the components. The shaft portion of the T-bar passes through an aperture in the first spaced component and the crossbar portion of the T-bar is arranged adjacent to the second spaced component. A bracket is coupled to the second spaced component and substantially encapsulates the crossbar portion of the T-bar.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: April 11, 2017
    Assignee: United Technologies Corporation
    Inventor: Thomas M. Barry
  • Patent number: 9617870
    Abstract: A turbine engine assembly, with an axis, includes a vane arrangement segment, a mounting bracket and a strut. The vane arrangement segment includes a first platform segment, a second platform segment and a guide vane that extends radially between and is connected to the first and the second platform segments. The mounting bracket is connected to the vane arrangement segment. The strut extends radially through the first platform segment, the second platform segment and the guide vane, and is engaged with the mounting bracket. The mounting bracket attaches the vane arrangement segment to the strut.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: April 11, 2017
    Assignee: United Technologies Corporation
    Inventor: Jaisukhlal V. Chokshi
  • Patent number: 9581334
    Abstract: An annular combustion chamber of a turbine engine, the chamber including inner and outer coaxial walls forming two surfaces of revolution, which are connected together upstream by an annular chamber end wall including injection systems passing therethrough, each including an injector and at least one swirler for producing a rotating air stream that mixes downstream with fuel from the injector, and at least one ignition spark plug mounted in an orifice of the outer wall downstream from the injection systems. The spark plug is situated circumferentially between two adjacent injection systems that are configured to produce two air/fuel mixture sheets rotating in opposite directions.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: February 28, 2017
    Assignee: SNECMA
    Inventors: Sebastien Alain Christophe Bourgois, Denis Jean Maurice Sandelis
  • Patent number: 9562459
    Abstract: Reciprocating-piston internal combustion engines having different power outputs are to be equipped simply, reliably and inexpensively with a device for the selective catalytic reduction of the exhaust gases having an SCR module for a reciprocating-piston internal combustion engine, comprising a housing and/or a frame, an exhaust-gas section which delimits a flow duct for guiding through exhaust gas, having an inlet opening for introducing the exhaust gas and an outlet opening for discharging the exhaust gas, an SCR catalytic converter which is arranged inside the flow duct, at least one injection element for adding a reducing agent, for example ammonia or a urea solution, to the exhaust gas which is guided through the flow duct. This problem is solved by virtue of the fact that the SCR module comprises at least one delivery device (13) for feeding the reducing agent to the injection element at a predetermined pressure.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: February 7, 2017
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Benjamin Sauter, Holger Sinzenich, Katharina Görner, Mathias Bauknecht, Klaus Wehler
  • Patent number: 9541030
    Abstract: An exhaust plume cooling device for cooling an exhaust gas plume to reduce deleterious heat effects on impinged and surrounding surfaces. The device is supportable in a position downstream of an exhaust nozzle of an exhaust gas plume-producing engine and configured to periodically interrupt the flow of exhaust gases.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: January 10, 2017
    Assignee: Lockheed Martin Corporation
    Inventors: Dan J. Baruzzini, Neal David Domel, Daniel N. Miller
  • Patent number: 9422868
    Abstract: A simple cycle gas turbomachine includes a compressor portion, and a turbine portion having an outlet. At least one combustor is fluidically connected to the compressor portion and the turbine portion. An exhaust member includes an inlet, fluidically connected to the outlet of the turbine portion, a first outlet and a second outlet. A fuel conditioning system includes a heat exchange member provided with a first circuit having an exhaust gas inlet fluidically connected to the second outlet of the exhaust member and an exhaust gas inlet, a second circuit having an inlet fluidically connected to a source of fuel and an outlet fluidically connected to the at least one combustor. A conditioned fluid conduit is fluidically connected between a source of conditioned fluid and one of the combustor assembly and the first outlet of the exhaust member.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: August 23, 2016
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Korey Frederic Rendo, David Wesley Ball, Jr., Diego Fernando Rancruel, Ameya Chandrakant Joshi, Michael Brian Smith
  • Patent number: 9334060
    Abstract: A method of managing aircraft exhaust includes providing hot air at a hot air mass flow rate, providing cold air at a cold air mass flow rate, and mixing the hot air and the cold air at a variable hot air mass flow rate to cold air mass flow rate ratio, wherein the variable hot air mass flow rate to cold air mass flow rate ratio is selectively maintained independent of at least one of (1) a variation in the hot air mass flow rate and (2) a variation in a translational speed of the aircraft.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: May 10, 2016
    Assignee: Bell Helicopter Textron Inc.
    Inventors: Daniel B. Robertson, Dudley E. Smith, Robert M. Laramee
  • Patent number: 9311539
    Abstract: Concepts and technologies described herein provide for the detection of aircraft contrails through the identification of contrail shadows in real time imagery provided during a flight. According to one aspect of the disclosure provided herein, an antisolar point is located on a surface from the perspective of the aircraft in flight. Real time imagery encompassing the antisolar point is received and analyzed for a contrail indicator. When the contrail indicator is detected, it is determined that the aircraft is creating a contrail.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: April 12, 2016
    Assignee: The Boeing Company
    Inventor: Timothy Mark Garrett
  • Patent number: 9163525
    Abstract: A catcher for a gas turbine engine includes a central hub, a plurality of struts, and a first ring. The plurality of struts are connected to and extend outward from the central hub. The first ring is connected to a mid-section of the plurality of struts and extends therebetween.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: October 20, 2015
    Assignee: United Technologies Corporation
    Inventors: Eric J. Alexander, Behzad Hagshenas, Richard L. Elgin
  • Publication number: 20150143811
    Abstract: A system includes a catalyst system having at least one catalyst to treat an exhaust gas from a gas turbine system, and a thermal storage system having at least one storage tank to store thermal energy in a medium, wherein the system is configured to transfer heat from the medium to the at least one catalyst.
    Type: Application
    Filed: November 25, 2013
    Publication date: May 28, 2015
    Applicant: General Electric Company
    Inventors: Raymond Pang, Parag Prakash Kulkarni, Huijuan Chen
  • Publication number: 20150143812
    Abstract: An exhaust plume cooling device for cooling an exhaust gas plume to reduce deleterious heat effects on impinged and surrounding surfaces. The device is supportable in a position downstream of an exhaust nozzle of an exhaust gas plume-producing engine and configured to periodically interrupt the flow of exhaust gases.
    Type: Application
    Filed: November 27, 2013
    Publication date: May 28, 2015
    Applicant: Lockheed Martin Corporation
    Inventors: Dan J. Baruzzini, Neal David Domel, Daniel N. Miller
  • Publication number: 20150128557
    Abstract: A microscale energy cogeneration system includes at least a micro/nano-turbine set for converting fuel into mechanical energy, and a generator for converting mechanical energy produced by said micro/nano-turbine into electrical energy in the range of 1 to 5 kWh. The system further includes an exhaust passage downstream from said micro/nano-turbine delivering high temperature exhaust air from said micro/nano-turbine. At least one heat exchanger receives high temperature exhaust air from said exhaust passage for heat transfer. Said heat exchanger may be used to heat water and/or air of a house. A water heating system may be coupled to the heat exchanger for convening tap water into hot water and/or cool heating air into hot air. The portable micro/nano-turbine set may be scaled up by interconnecting several units at the same time and/or interconnecting different units of different users for balancing out the energy demand of those users.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 14, 2015
    Applicant: GNC GALILEO S.A.
    Inventor: Osvaldo DEL CAMPO
  • Patent number: 9021779
    Abstract: The present application thus provides a gas turbine engine system. The gas turbine engine system may include a gas turbine engine, a nitrogen oxides reduction system in communication with a flow of combustion gases downstream from the gas turbine engine, and a nitrogen oxides controller to control the ratio of nitrogen dioxide to nitrogen oxides in the flow of combustion gases entering the nitrogen oxides reduction system.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: May 5, 2015
    Assignee: General Electric Company
    Inventor: Robert Frank Hoskin
  • Patent number: 9014945
    Abstract: A system is provided that includes a memory storing a turbomachinery degradation model configured to model degradation of a turbomachinery over time. The system also includes a controller communicatively coupled to the memory and configured to control the turbomachinery based on a feedback signal and the turbomachinery degradation model. Moreover, the turbomachinery degradation model is configured to use a target power to derive a control parameter by estimating a modeled power of the turbomachinery, and the controller is configured to use the control parameter to control the turbomachinery.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: April 21, 2015
    Assignee: General Electric Company
    Inventors: Sidharth Abrol, David Spencer Ewens, Alan Meier Truesdale
  • Patent number: 9010081
    Abstract: A power plant includes a gas turbine unit adapted to feed flue gases into a boiler of a steam turbine unit, to be then diverted into a recirculated flow and discharged flow. The recirculated flow is mixed with fresh air forming a mixture that is fed into a gas turbine unit compressor. The discharged flow is fed into a CO2 capture unit that is an amine based or chilled ammonia based CO2 capture unit. A cooler for the flue gases can be configured as a shower cooler located upstream of the CO2 capture unit. The plant can also include a washing unit to neutralize ammonia drawn by the flue gases that can be fed with nitric acid gathered at the cooler.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: April 21, 2015
    Assignee: Alstom Technology Ltd.
    Inventors: Eribert Benz, Gian-Luigi Agostinelli, Andreas Brautsch, Gisbert Wolfgang Kaefer, Felix Güthe
  • Patent number: 9003762
    Abstract: Various embodiments include an exhaust plume mitigation system for a turbine and systems incorporating the exhaust plume mitigation system. In some embodiments, the exhaust plume mitigation system includes: a first conduit fluidly connecting a compressor to an exhaust chamber of the turbine; a first control valve operably connected with the first conduit for regulating flow of compressor air through the first conduit; and a fluid inductor including: a first inlet fluidly connected with the first conduit; a second inlet fluidly connected with ambient; and an outlet fluidly connected with the exhaust chamber.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: April 14, 2015
    Assignee: General Electric Company
    Inventors: Alston Ilford Scipio, Sanji Ekanayake
  • Patent number: 9003761
    Abstract: In one embodiment, a system is provided that includes a first gas turbine engine. The first gas turbine engine has a first compressor configured to intake air and to produce a first compressed air and a first combustor configured to combust a first mixture to produce a first combustion gas. The first mixture has a first fuel, at least a first portion of the first compressed air, and a second combustion gas from a second gas turbine engine. The first gas turbine engine also includes a first turbine configured to extract work from the first combustion gas.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: April 14, 2015
    Assignee: General Electric Company
    Inventor: Samuel David Draper
  • Patent number: 8991149
    Abstract: A power generation system capable of eliminating NOxcomponents in the exhaust gas by using a 3-way catalyst, comprising a gas compressor to increase the pressure of ambient air fed to the system; a combustor capable of oxidizing a mixture of fuel and compressed air to generate an expanded, high temperature exhaust gas; a turbine that uses the force of the high temperature gas; an exhaust gas recycle (EGR) stream back to the combustor; a 3-way catalytic reactor downstream of the gas turbine engine outlet which treats the exhaust gas stream to remove substantially all of the NOx components; a heat recovery steam generator (HRSG); an EGR compressor feeding gas to the combustor and turbine; and an electrical generator.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: March 31, 2015
    Assignee: General Electric Company
    Inventors: Ashok Kumar Anand, James Anthony West, Gilbert Otto Kraemer, Hasan Ui Karim, Sam David Draper, Jonathan Dwight Berry
  • Publication number: 20150075131
    Abstract: An exhaust collector for a gas turbine engine is disclosed. The exhaust collector includes a front panel, a rear panel, and a side panel. The side panel includes a circumferential portion, a first contoured portion, and a second contoured portion. The circumferential portion extends about the exhaust collector axis with a constant radius. The first contoured portion and the second contoured portion are each between the circumferential portion and the exhaust outlet and include a plurality of curved sections with alternating concavity. Each of the plurality of curved sections extends from the front panel to the rear panel.
    Type: Application
    Filed: September 19, 2013
    Publication date: March 19, 2015
    Applicant: SOLAR TURBINES INCORPORATED
    Inventors: Kevin Kiyoto Hirako, Brian Alan Fox, Leslie John Faulder
  • Patent number: 8973346
    Abstract: A gas turbine engine, especially a turbojet or turbofan for an aircraft, includes a combustion section and an exhaust section produces an exhaust gas. The emission products can be reduced by using a gas treatment device with a reactor and an injection device. The reactor produces a nitrogeneous substance such as ammonia. This reducing agent is injected in the gas phase in the exhaust section of the gas turbine engine. By selective non catalytic reaction the Nitrogen oxides of the exhaust gas can be reduced. Furthermore the injection device is arranged such that the temperature window of this reduction process is ranging from 850° C. to 1100° C. The reactor for producing gaseous ammonia can either be a thermal reactor or a high pressure plasma device.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: March 10, 2015
    Assignee: Airbus Operations GmbH
    Inventors: Erwin Bayer, Jürgen Steinwandel, Emmanuel Joubert
  • Publication number: 20150059312
    Abstract: An exhaust stack includes an inlet section extending along a first axis and an outlet section extending along a second axis. A co-axial silencer is arranged in one of the inlet section and outlet section. The co-axial silencer includes a plurality of concentric baffles configured and disposed to absorb acoustics generated by fluid flow through the exhaust stack.
    Type: Application
    Filed: August 29, 2013
    Publication date: March 5, 2015
    Applicant: General Electric Company
    Inventors: Prabhakaran Saraswathi Rajesh, Keshava Kumar Chilkunda Keshavamurthy, Rajkumar Jain
  • Patent number: 8966878
    Abstract: A compressor compresses air to produce compressed air. A mixture of fuel and the compressed air is combusted in a combustor to produce combustion gas. The combustion gas is supplied to a turbine to obtain rotational power. High-temperature gas accumulated in a space partitioned by an exhaust-side bearing portion that rotatably supports a turbine shaft and an exhaust diffuser is discharged through an exhaust gas passage. The high-temperature gas is sucked into the exhaust gas passage by exhaust gas flowing in the exhaust diffuser.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: March 3, 2015
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Hideyuki Satou, Masao Terazaki
  • Patent number: 8959887
    Abstract: The present invention provides methods and system for power generation using a high efficiency combustor in combination with a CO2 circulating fluid. The methods and systems advantageously can make use of a low pressure ratio power turbine and an economizer heat exchanger in specific embodiments. Additional low grade heat from an external source can be used to provide part of an amount of heat needed for heating the recycle CO2 circulating fluid. Fuel derived CO2 can be captured and delivered at pipeline pressure. Other impurities can be captured.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: February 24, 2015
    Assignees: Palmer Labs, LLC, 8 Rivers Capital, LLC
    Inventors: Rodney John Allam, Glenn William Brown, Jr., Miles R. Palmer
  • Patent number: 8959885
    Abstract: A heat recovery system for use with a gasification system is provided. One system includes a gasification system and an organic Rankine cycle system coupled to the gasification system. The organic Rankine cycle system is configured to receive heated fluid from the gasification system and to deliver cooled fluid to the gasification system. The organic Rankine cycle system is configured to produce power by converting heat energy in the heated fluid.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: February 24, 2015
    Assignee: General Electric Company
    Inventors: Ganesh Prasadh Kidambi, Atul Kumar Vij, Priyanandini Balasubramanian, Ronald Frederick Tyree
  • Patent number: 8955302
    Abstract: A method and gas turbine are provided for the reliable purging of an exhaust gas recirculation line of the gas turbine with exhaust gas recirculation without the use of additional blow-off fans. A blow-off flow of the compressor is used for the purging of the exhaust gas recirculation line. The gas turbine can include at least one purging line which connects a compressor blow-off point to the exhaust gas recirculation line.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: February 17, 2015
    Assignee: Alstom Technology Ltd.
    Inventors: Floris Van Straaten, Juergen Hoffmann
  • Publication number: 20150035277
    Abstract: A method for operating a gas power plant is provided, having a gas turbine which has a compressor stage and a turbine stage, and is connected to a generator via an axle, wherein the generator is designed to also be operated as a motor, wherein the method involves the operation of the generator as a motor for the rotatory operation of the axle, as well as a simultaneous discharge of the heated gas flow exiting from the turbine stage and routing of said gas flow to a first heat exchanger for the transfer of thermal energy from the gas flow to a heat exchanger fluid, wherein the heat exchanger fluid is provided to either discharge thermal energy to a heat accumulating medium or it can be used an accumulating medium itself for temporary storage.
    Type: Application
    Filed: February 1, 2013
    Publication date: February 5, 2015
    Applicant: Siemens Aktiengesellschaft
    Inventors: Christian Brunhuber, Oliver Hirschfelder, Uwe Lenk, Wolfgang Menapace, Nicolas Vortmeyer
  • Publication number: 20150033751
    Abstract: A system includes a compressor configured to compress a gaseous stream, an exhaust gas cooler configured to cool an exhaust gas from combustion with a cooling water, and a water injection system configured to inject the cooling water from the exhaust gas cooler into at least one of a compressor inlet of the compressor, a stage of the compressor, between stages of the compressor, or an inlet duct coupled to the compressor inlet of the compressor, or any combination thereof.
    Type: Application
    Filed: June 25, 2014
    Publication date: February 5, 2015
    Inventor: Philip Lynn Andrew
  • Patent number: 8943826
    Abstract: A combustor of a gas turbine engine is fed with liquid ammonia and that liquid ammonia is burned to drive a turbine. Inside the exhaust passage of the gas turbine engine, an NOX selective reduction catalyst is arranged. Inside the intake air which flows into the compressor, liquid ammonia is fed. This liquid ammonia is used to cool the intake air. The NOX which is contained in the exhaust gas is reduced by the unburned ammonia which is exhausted into the exhaust passage by the NOX selective reduction catalyst.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: February 3, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shunsuke Kasuga, Atsushi Watanabe, Shin-ichiro Tanaka, Osamu Azegami
  • Publication number: 20150027099
    Abstract: A gas turbine facility 10 of an embodiment has a combustor 20 combusting fuel and oxidant, a turbine 28 rotated by combustion gas exhausted from the combustor 20, a heat exchanger 25 cooling the combustion gas from the turbine 28, a pipe 46 guiding a part of the combustion gas to the combustor 20 via the heat exchanger 25, and a pipe 45 exhausting a remaining part of the combustion gas to an outside. Further, the facility has a pipe 40 supplying fuel to the combustor 20, a pipe 41 supplying oxidant to the combustor 20 via the heat exchanger 25, and a pipe 42 branched from the pipe 41, bypassing the heat exchanger 25, and coupled to the pipe 41, so as to introduce the oxidant into the pipe 41.
    Type: Application
    Filed: July 15, 2014
    Publication date: January 29, 2015
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasunori IWAI, Masao ITOH, Shinju SUZUKI
  • Publication number: 20150020530
    Abstract: Embodiments of the present disclosure are directed towards a system including a gas turbine engine, a selective catalytic reduction system, and a control system configured to regulate operation of the selective catalytic reduction system based at least partially on preset variations in an emissions compound of exhaust gases produced by the gas turbine engine.
    Type: Application
    Filed: July 18, 2013
    Publication date: January 22, 2015
    Inventors: Achalesh Kumar Pandey, Timothy Andrew Healy
  • Publication number: 20150020529
    Abstract: Embodiments of the present disclosure are directed towards a system including a gas turbine engine configured to produce exhaust gas, a selective catalytic reduction system configured to produce processed exhaust gas from the exhaust gas, and a control system. The control system includes a first controller configured to regulate operation of the selective catalytic reduction system, a second controller configured to regulate operation of the gas turbine engine, and an optimizer configured to coordinate operation of the first controller and the second controller to simultaneously maximize a first level of an emissions compound in the exhaust gas and regulate injection of a reductant into the selective catalytic reduction system to reduce a second level of the emissions compound in the processed exhaust gas to a first desired level of the emissions compound in the processed exhaust gas.
    Type: Application
    Filed: July 18, 2013
    Publication date: January 22, 2015
    Applicant: General Electric Company
    Inventors: Robert Frank Hoskin, Balachandar Naidu
  • Publication number: 20150013341
    Abstract: An exhaust mixer for a gas turbine engine where each outer lobe has at the downstream end a circumferential offset in a direction corresponding to that of the swirl component of the flow entering the mixer. The mixer has a crest line having at least a downstream portion curved with respect with respect to a circumferential direction of the mixer and/or a center line at the downstream end tilted with respect to a radial line extending to the tip of the outer lobe to define the circumferential offset. A method of mixing a core flow and a bypass flow surrounding the core flow with an annular mixer is also provided.
    Type: Application
    Filed: July 9, 2013
    Publication date: January 15, 2015
    Inventors: Mark CUNNINGHAM, Remo MARINI, Sami GIRGIS, Mohammad Reza KAMESHKI, Raja RAMAMURTHY
  • Publication number: 20150000244
    Abstract: A system for reducing emissions includes a gas production source that produces nitrogen oxides, sulfur oxides, hydrogen sulfide, sulfuric acid, nitric acid, formaldehyde, benzene, metal oxides, or volatile organic compound emissions. An exhaust plenum is downstream from the gas production source, and structure for dispersing a solvent is in the exhaust plenum. A collection tank is in fluid communication with the exhaust plenum to receive the solvent from the exhaust plenum, and a heat source is in the exhaust plenum downstream from the structure for dispersing the solvent. A method for reducing emissions from a gas production source includes flowing exhaust gases through an exhaust plenum, dispersing a solvent through a nozzle in the exhaust plenum, collecting the dispersed solvent in a collection tank, and heating the exhaust gases flowing through the exhaust plenum downstream from the nozzle.
    Type: Application
    Filed: July 1, 2013
    Publication date: January 1, 2015
    Inventors: Robert Thomas Thatcher, Gilbert Otto Kraemer, Andrew Mitchell Rodwell, Brett Matthew Thompson
  • Publication number: 20150000298
    Abstract: Advanced gas turbines and associated components, systems and methods are disclosed herein. A gas turbine configured in accordance with a particular embodiment includes a rotor operably coupled to a shaft and a stator positioned adjacent to the rotor. A coolant line extends at least partially through the stator to transfer heat out of an air flow within a compressor section of the gas turbine.
    Type: Application
    Filed: December 20, 2013
    Publication date: January 1, 2015
    Applicant: ADVANCED GREEN TECHNOLOGIES, LLC
    Inventor: Roy Edward McAlister
  • Publication number: 20150000292
    Abstract: A system includes a gas turbine engine that includes a combustor section having one or more combustors configured to generate combustion products and a turbine section having one or more turbine stages between an upstream end and a downstream end. The one or more turbine stages are driven by the combustion products. The gas turbine engine also includes an exhaust section disposed downstream from the downstream end of the turbine section. The exhaust section has an exhaust passage configured to receive the combustion products as an exhaust gas. The gas turbine engine also includes a mixing device disposed in the exhaust section. The mixing device is configured to divide the exhaust gas into a first exhaust gas and a second exhaust gas, and to combine the first and second exhaust gases in a mixing region to produce a mixed exhaust gas.
    Type: Application
    Filed: June 11, 2014
    Publication date: January 1, 2015
    Inventors: Moorthi Subramaniyan, Christian Michael Hansen, Richard A. Huntington, Todd Franklin Denman
  • Publication number: 20150000296
    Abstract: In a method for operating a gas turbine, NOx is removed from the exhaust gases of the gas turbine by means of a selective catalysis device with the addition of NH3. The method achieves an extremely low NOx content while simultaneously achieving economic consumption of NH3 and avoiding NH3 in the exhaust gas by maintaining the NOx content of the exhaust gas at a constant level via a regulated return of a portion of the exhaust gas in varying operating conditions of the gas turbine, and by adjusting the addition of the NH3 in the selective catalysis device to the constant NOx level.
    Type: Application
    Filed: September 18, 2014
    Publication date: January 1, 2015
    Inventors: Felix GUETHE, Eribert Benz, Frank Graf
  • Publication number: 20140373504
    Abstract: A gas turbine having an exhaust gas diffuser connected to a turbine unit is provided, wherein the gas diffuser channel of the gas diffuser is delimited on the outside by a channel wall and has a plurality of hollow supporting fins extending inward for fastening a radial bearing of the gas turbine, wherein at least one blow-off line for blow-off air having at least one pipeline ends at the outlet side on the exhaust gas diffuser and the end of the exhaust gas diffuser on the inlet side is connected to a compressor of the gas turbine. In order to at least partially compensate for incorrect incident flow of the supporting fins, more particularly in partial load operation, the supporting fins have a hub on the inner end thereof, the axial end of said hub having additional openings for blowing out the blow-off air in the diffuser channel.
    Type: Application
    Filed: January 15, 2013
    Publication date: December 25, 2014
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Marc Broker, Tobias Buchal
  • Publication number: 20140367476
    Abstract: A heating system (50) for heating a cabin (2) of an aircraft (1), said heating system including an annular heat exchanger (10) positioned around an exhaust pipe (21) of a turbine engine (20), and through which a heat transfer fluid (14) and ambient air (25) flow. Said heat exchanger (10) is provided with a rear casing situated at an outlet of said heat exchanger (10) and directing the ambient air (25) exiting form said heat exchanger (10) towards said exhaust gas (15) exiting via said exhaust pipe (21). Said exhaust gas (15) then generates a flow of ambient air (25) through said heat exchanger (10) by the “Coanda” effect. Said ambient air (25) flowing through said heat exchanger (10) is thus heated by convection from said pipe (21), and said heat transfer fluid (14) is heated firstly by radiation from said pipe (21) and secondly by convection between said heat transfer fluid (14) and said ambient air (25).
    Type: Application
    Filed: June 12, 2014
    Publication date: December 18, 2014
    Inventor: Vincent POMME