Patents by Inventor Hasan Karim
Hasan Karim has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20140000269Abstract: A combustion nozzle includes a mixing section and an exit section. The mixing section includes an air inlet, and a fuel inlet. The exit section includes a plurality of jets formed in a predefined pattern on an exit surface. A ratio of a core area of the plurality of jets to an exit surface area is greater than 0.25.Type: ApplicationFiled: June 29, 2012Publication date: January 2, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Uyigue Omoma Idahosa, Anthony Robert Brand, Hasan Karim, Michael John Hughes
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Publication number: 20130283810Abstract: A combustion nozzle includes at least one passage having a mixing section and an exit section. 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.Type: ApplicationFiled: April 30, 2012Publication date: October 31, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Uyigue Omoma Idahosa, Keith Robert McManus, Anthony Robert Brand, Hasan Karim, Michael John Hughes
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Publication number: 20130177858Abstract: A combustor includes a plurality of tubes arranged in a tube bundle and supported by at least one plate that extends radially within the combustor, wherein each tube includes an upstream end axially separated from a downstream end and provides fluid communication through the tube bundle. A flow conditioner extends upstream from the upstream end of one or more of the plurality of tubes, and a radial passage extends through the flow conditioner. A method for distributing fuel in a combustor including flowing a working fluid through a flow conditioner that extends from a tube that is configured in a tube bundle comprising a plurality of tubes and that is supported by at least one plate. The flow conditioner includes at least one radial passage to impart radial swirl to the working fluid. Flowing a fuel through an annular insert that is at least partially surrounded by the flow conditioner.Type: ApplicationFiled: January 6, 2012Publication date: July 11, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Gregory Allen Boardman, Geoffrey David Myers, Hasan Karim, Michael John Hughes, Azardokht Hajiloo
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Patent number: 8377156Abstract: The present subject matter is directed to a method for operating a fuel reformer. The method may generally include directing a fluid stream around a reactor assembly of the fuel reformer to cool the reactor assembly, and mixing a heated reformate stream produced by the reactor assembly with the fluid stream to cool the heated reformate stream.Type: GrantFiled: August 3, 2012Date of Patent: February 19, 2013Assignee: General Electric CompanyInventors: Jonathan Dwight Berry, Hasan Karim, Abdul Rafey Khan
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Publication number: 20120291352Abstract: The present subject matter discloses a fluid cooled reformer for gas turbine systems and a method for cooling both a fuel reformer and a heated reformate stream produced by such fuel reformer. The fluid cooled reformer may include a pressure vessel and a reactor assembly disposed within the pressure vessel, The reactor assembly may include a reactor and may be configured to receive and reform an oxygen/fuel mixture to produce a heated reformate stream. Additionally, the fluid cooled reformer may include an inlet configured to direct a fluid stream into the pressure vessel. At least a portion of the fluid stream may be used to cool the reactor assembly. A reformate cooling section may be disposed downstream of the reactor of the reactor assembly and may be configured to cool the heated reformate stream.Type: ApplicationFiled: August 3, 2012Publication date: November 22, 2012Applicant: General Electric CompanyInventors: Jonathan Dwight Berry, Hasan Karim, Abdul Rafey Khan
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Publication number: 20120272655Abstract: A system and a method of generating energy in a power plant using a turbine are provided. The system includes an air separation unit providing an oxygen output; a plasma generator that is capable of generating plasma; and a combustor configured to receive oxygen and to combust a fuel stream in the presence of the plasma, so as to maintain a stable flame, generating an exhaust gas. The system can further include a water condensation system, fluidly-coupled to the combustor, that is capable of producing a high-content carbon dioxide stream that is substantially free of oxygen. The method of generating energy in a power plant includes the steps of operating an air separation unit to separate oxygen from air, combusting a fuel stream in a combustor in the presence of oxygen, and generating an exhaust gas from the combustion. The exhaust gas can be used in a turbine to generate electricity. A plasma is generated inside the combustor, and a stable flame is maintained in the combustor.Type: ApplicationFiled: April 29, 2011Publication date: November 1, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Ahmed Mostafa ELKady, Uyigue Omoma Idahosa, Matthew Patrick Boespflug, Grover Andrew Bennett, John Thomas Herbon, Hasan Karim, Geoffrey David Myers, Seyed Gholamali Saddoughi
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Patent number: 8252251Abstract: The present subject matter discloses a fluid cooled reformer for gas turbine systems and a method for cooling both a fuel reformer and a heated reformate stream produced by such fuel reformer. The fluid cooled reformer may include a pressure vessel and a reactor assembly disposed within the pressure vessel. The reactor assembly may include a reactor and may be configured to receive and reform an oxygen/fuel mixture to produce a heated reformate stream. Additionally, the fluid cooled reformer may include an inlet configured to direct a fluid stream into the pressure vessel. At least a portion of the fluid stream may be used to cool the reactor assembly. A reformate cooling section may be disposed downstream of the reactor of the reactor assembly and may be configured to cool the heated reformate stream.Type: GrantFiled: March 30, 2010Date of Patent: August 28, 2012Assignee: General Electric CompanyInventors: Jonathan Dwight Berry, Hasan Karim, Abdul Rafey Khan
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Publication number: 20120186266Abstract: A reformer for use in a gas turbine engine specially configured to treat a supplemental fuel feed to the combustor that includes a reformer core containing a catalyst composition and an inlet flow channel for transporting the reformer fuel mixture, air and steam (either saturated or superheated) into a reformer core. An outlet flow channel transports the resulting reformate stream containing reformed and thermally cracked hydrocarbons and substantial amounts of hydrogen out of the reformer core for later combination with the main combustor feed. Because the catalytic partial oxidation reaction in the reformer is highly exothermic, the additional heat is transferred (and thermally integrated) using one or more heat exchange units for a first and/or second auxiliary gas turbine fuel stream that undergo thermal cracking and vaporization before combining with the reformate. The combined, hydrogen-enriched feed significantly improves combustor performance.Type: ApplicationFiled: January 21, 2011Publication date: July 26, 2012Inventors: Abdul Rafey Khan, Hasan Karim, Jonathan Dwight Berry
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Publication number: 20120180497Abstract: A turbomachine system includes a compressor portion having a compressor inlet and a compressor outlet, a turbine portion operatively connected to the compressor portion, a combustor having a combustor inlet fluidly connected to the compressor outlet and a combustor outlet fluidly connected to the turbine portion; and a reformer having a reformer inlet fluidly connected to the compressor outlet and a reformer outlet fluidly connected to the combustor inlet. The reformer partially combusts air from the compressor portion and a fuel to form a hydrogen-rich syngas.Type: ApplicationFiled: January 13, 2011Publication date: July 19, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Kihyung Kim, Hasan Karim, Abdul Rafey Khan
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Publication number: 20110243805Abstract: The present subject matter discloses a fluid cooled reformer for gas turbine systems and a method for cooling both a fuel reformer and a heated reformate stream produced by such fuel reformer. The fluid cooled reformer may include a pressure vessel and a reactor assembly disposed within the pressure vessel. The reactor assembly may include a reactor and may be configured to receive and reform an oxygen/fuel mixture to produce a heated reformate stream. Additionally, the fluid cooled reformer may include an inlet configured to direct a fluid stream into the pressure vessel. At least a portion of the fluid stream may be used to cool the reactor assembly. A reformate cooling section may be disposed downstream of the reactor of the reactor assembly and may be configured to cool the heated reformate stream.Type: ApplicationFiled: March 30, 2010Publication date: October 6, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Jonathan Dwight Berry, Hasan Karim, Abdul Rafey Khan
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Publication number: 20110197566Abstract: A method for operating a catalytic reforming assembly. The method includes injecting a quantity of oxidizer gas and a quantity of combustion gas into a reformer to form a mixture. The mixture is channeled across a catalyst bed to form a reformate gas stream. A temperature of the catalyst bed is measured using at least one temperature sensor. A level of the oxidizer gas in the reformate stream is measured using at least one oxidizer gas sensor. A health of the catalyst bed is determined based on at least one of a catalyst bed temperature measurement and an oxidizer gas level.Type: ApplicationFiled: February 12, 2010Publication date: August 18, 2011Inventors: Chetan Babu Velkur, Hasan Karim
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Publication number: 20110113783Abstract: In one embodiment, a system includes a fuel nozzle that includes a fuel injector that includes a fuel port and a premixer tube. The premixer tube includes a wall disposed about a central passage, multiple air ports extending through the wall into the central passage, and a catalytic region. The catalytic region includes a catalyst, disposed inside the wall along the central passage, configured to increase a reaction of fuel and air.Type: ApplicationFiled: November 13, 2009Publication date: May 19, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Gregory Allen Boardman, David Martin Johnson, Ronald James Chila, Nishant Govindbhai Parsania, Hasan Karim, Joseph Citeno
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Publication number: 20110016866Abstract: In one embodiment, a system includes a fuel injector including a liquid fuel passage extending to a first port in a tip portion. The fuel injector also includes a selectable flow passage extending to a second port in the tip portion. The selectable flow passage surrounds the liquid fuel passage to the tip portion, the selectable flow passage is configured to selectively receive a gas fuel flow and an air flow, and the selectable flow passage has a flow temperature configured to cool a liquid fuel flowing through the liquid fuel passage to reduce coking.Type: ApplicationFiled: July 22, 2009Publication date: January 27, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Gregory Allen Boardman, Ronald Chila, Nishant Govindbhai Parsania, Hasan Karim
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Publication number: 20100330510Abstract: A method is provided for achieving low NOx in the operation of a non-premixed combustion system by reacting a fuel-rich mixture to produce partial reaction products plus heat, transferring a portion of the heat to a bypass air stream, and passing the cooled partial reaction products into non-premixed contact and combustion with a stoichiometric portion of the heated bypass air stream. A supply of fuel and a supply of air is provided; and a fuel-rich mixture is formed and reacted to produce partial reaction products plus a heat of reaction. A portion of the heat of reaction is transferred to a bypass air stream and the cooled partial reaction products are passed into non-premixed contact and combustion with a stoichiometric portion of the heated bypass air stream.Type: ApplicationFiled: May 19, 2010Publication date: December 30, 2010Inventors: William C. Pfefferle, Shahrokh Etemad, Hasan Karim, Lance L. Smith
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Publication number: 20100269513Abstract: The present application describes a combustion liner. The combustion liner may include a number of air mixing holes and a number of thimble fans positioned thereon.Type: ApplicationFiled: April 23, 2009Publication date: October 28, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Jonathan D. Berry, Russell DeForest, Hasan Karim
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Publication number: 20100170216Abstract: A gas turbine engine is provided and includes a late lean injection (LLI) compatible combustor having a first interior in which a first fuel supplied thereto by a fuel circuit is combustible, a turbine, a transition zone, including a second interior in which a second fuel supplied thereto by the fuel circuit and the products of the combustion of the first fuel are combustible, the transition zone being disposed to fluidly couple the combustor and the turbine to one another, and a plurality of fuel injectors, which are structurally supported by the transition zone and coupled to the fuel circuit, and which are configured to supply the second fuel to the second interior in any one of a single axial stage, multiple axial stages, a single axial circumferential stage and multiple axial circumferential stages.Type: ApplicationFiled: January 7, 2009Publication date: July 8, 2010Applicant: General Electric CompanyInventors: Krishna Kumar Venkataraman, Roy Marshall Washam, Hasan Karim, Jason Charles Terry, Lewis Berkley Davis, JR.
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Publication number: 20100170254Abstract: A gas turbine engine is provided and includes a combustor having a first interior in which a first fuel supplied thereto is combustible, a turbine, including rotating turbine blades, into which products of at least the combustion of the first fuel are receivable to power a rotation of the turbine blades, a transition zone, including a second interior in which a second fuel supplied thereto and the products of the combustion of the first fuel are combustible, the transition zone being disposed to fluidly couple the combustor and the turbine to one another, and a plurality of fuel injectors, which are supported by the transition zone and coupled to a fuel circuit, and which are configured to supply the second fuel to the second interior in any one or more of a single axial stage, multiple axial stages, a single axial circumferential stage and multiple axial circumferential stages.Type: ApplicationFiled: January 7, 2009Publication date: July 8, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Krishna Kumar Venkataraman, Jason Charles Terry, Chetan Babu Velkur, Hasan Karim
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Publication number: 20100170253Abstract: In one embodiment, a turbine system, may include a fuel nozzle, that includes a plurality of fuel passages and a plurality of air passages offset in a downstream direction from the fuel passages. In the embodiment, an air flow from the air passages is configured to intersect with a fuel flow from the fuel passages at an angle to induce swirl and mixing of the air flow and the fuel flow downstream of the fuel nozzle.Type: ApplicationFiled: January 7, 2009Publication date: July 8, 2010Applicant: General Electric CompanyInventors: Jonathan Dwight Berry, James T. Brown, Hasan Karim, Girard A. Simons
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Publication number: 20100058758Abstract: An exhaust gas recirculation system that includes an exhaust gas recirculation regulator operatively connectable to a turbomachine system, and regulating a predetermined amount of exhaust gas to be recirculated. The exhaust gas recirculation system further includes a measuring unit that measures fuel composition of incoming fuel, and a control unit connected to the EGR regulator and the measuring unit, and determining a Wobbe Index and/or reactivity of the incoming fuel based on the measured fuel composition and determining the predetermined amount of exhaust gas to be recirculated based on the determined Wobbe Index and/or reactivity.Type: ApplicationFiled: September 11, 2008Publication date: March 11, 2010Applicant: General Electric CompanyInventors: George Martin Gilchrist, III, Stanley Frank Simpson, Hasan Karim
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Publication number: 20090301054Abstract: While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.Type: ApplicationFiled: June 4, 2008Publication date: December 10, 2009Inventors: Stanley F. SIMPSON, George M. Gilchrist, Hasan Karim