Patents by Inventor Michael Scheurlen
Michael Scheurlen 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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Patent number: 10100681Abstract: A system and method for increasing the responsiveness of a duct fired, combined cycle power generation plant (12) via operating one or more gas turbine engines (14) at a part load condition less than 100 percent load, one or more steam turbine engines (16), and one or more supplemental burners (18) providing additional heat to a heat recovery steam generator (20) upstream from the steam turbine engine (16) is disclosed. The combination of the steam turbine engines (16) and supplemental burners (18) operating together with gas turbine engines (14) at a part load condition enables the system to quickly change output to accommodate changes in output demand of the duct fired, combined cycle power generation plant (12). By operating the one or more gas turbine engines (14) at a part load condition, the gas turbine engines (14) are able to be used to increase net output of the combined cycle power generation plant (12) faster than relying on increasing output via duct firing.Type: GrantFiled: October 24, 2014Date of Patent: October 16, 2018Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Marlon H. Farquharson, Ray L. Johnson, Michael Scheurlen, Monica B. Hansel, James H. Sharp, Karin Marjan Oostendorp-Kramer
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Publication number: 20170298782Abstract: A system and method for increasing the responsiveness of a duct fired, combined cycle power generation plant (12) via operating one or more gas turbine engines (14) at a part load condition less than 100 percent load, one or more steam turbine engines (16), and one or more supplemental burners (18) providing additional heat to a heat recovery steam generator (20) upstream from the steam turbine engine (16) is disclosed. The combination of the steam turbine engines (16) and supplemental burners (18) operating together with gas turbine engines (14) at a part load condition enables the system to quickly change output to accommodate changes in output demand of the duct fired, combined cycle power generation plant (12). By operating the one or more gas turbine engines (14) at a part load condition, the gas turbine engines (14) are able to be used to increase net output of the combined cycle power generation plant (12) faster than relying on increasing output via duct firing.Type: ApplicationFiled: October 24, 2014Publication date: October 19, 2017Applicant: Siemens AktiegesellschaftInventors: Marlon H. Farquharson, Ray L. Johnson, Michael Scheurlen, Monica B. Hansel, James H. Sharp, Karin Marjan Oostendorp-Kramer
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Patent number: 9540962Abstract: An air cooled heat exchanger, such as a combustion turbine intercooler or rotor cooler or an air cooled condenser, utilizes a pressurized gas fluid entraining misting device that evaporatively cools conduits carrying the cooled fluid medium. Evaporative cooling liquid is entrained in the pressurized gas where it is atomized for evaporative cooling of the heat exchanger conduits. In some exemplary embodiments of the invention the misting device is a jet pump or ejector that entrains a supply of non-pressurized cooling liquid. In other exemplary embodiments of the invention the misting device is a misting emitter that entrains a supply of pressurized cooling liquid.Type: GrantFiled: July 14, 2014Date of Patent: January 10, 2017Assignee: Siemens Energy, Inc.Inventors: James H. Sharp, Monica B. Hansel, Michael Scheurlen, Joshua A. Bernstein
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Patent number: 9416685Abstract: A combined cycle plant (10) including: a gas turbine engine (12) having a compressor (14), a combustor and a gas turbine (16); a heat recovery steam generator (20) (HRSG) configured to receive exhaust from the gas turbine engine; a steam turbine (22, 24) configured to receive steam from the HRSG; a supplemental air arrangement (40) configured to generate supplemental heated air (42) when operating and to operate independent of the gas turbine engine; and a kettle boiler (26, 28) configured to use heat from the supplemental heated air to generate steam used in the steam turbine.Type: GrantFiled: January 6, 2014Date of Patent: August 16, 2016Assignee: SIEMENS ENERGY, INC.Inventors: James H. Sharp, Michael Scheurlen, Monica B. Hansel
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Publication number: 20160010510Abstract: An air cooled heat exchanger, such as a combustion turbine intercooler or rotor cooler or an air cooled condenser, utilizes a pressurized gas fluid entraining misting device that evaporatively cools conduits carrying the cooled fluid medium. Evaporative cooling liquid is entrained in the pressurized gas where it is atomized for evaporative cooling of the heat exchanger conduits. In some exemplary embodiments of the invention the misting device is a jet pump or ejector that entrains a supply of non-pressurized cooling liquid. In other exemplary embodiments of the invention the misting device is a misting emitter that entrains a supply of pressurized cooling liquid.Type: ApplicationFiled: July 14, 2014Publication date: January 14, 2016Inventors: James H. Sharp, Monica B. Hansel, Michael Scheurlen, Joshua A. Bernstein
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Publication number: 20150192037Abstract: A combined cycle plant (10), including: a gas turbine engine (16) having a compressor (18), a combustor (20), and a gas turbine (22); and a heat recovery steam generator (HRSG) (36), a steam turbine (38), working fluid heated by the HRSG and effective to turn the steam turbine, and a blowdown heat transfer arrangement (90, 92, 94, 102, and 104) configured to capture heat present in blowdown water drawn from the working fluid and to transfer the heat to fuel (24) used in the combustor.Type: ApplicationFiled: January 6, 2014Publication date: July 9, 2015Inventors: James H. Sharp, MIchael Scheurlen, Monica B. Hansel
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Publication number: 20150192038Abstract: A combined cycle plant (10), including a heat recovery steam generator (HRSG) (36), a working fluid which is heated by the HRSG and effective to operate a steam turbine (38), and a blowdown heat transfer arrangement (90, 92, 94,102, 104) configured to capture heat present in blowdown water drawn from the working fluid and to transfer the heat to injection water (28), a gas turbine engine (16) having a compressor (18), a combustor (20), and a turbine (22), and a water injection arrangement (30) configured to inject the injection water into the combustorType: ApplicationFiled: January 6, 2014Publication date: July 9, 2015Inventors: James H. Sharp, MIchael Scheurlen, Monica B. Hansel
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Publication number: 20150192036Abstract: A power generation station (10), including: a combined cycle plant (12) having a gas turbine engine (20); a HRSG (30) configured to receive engine exhaust from the gas turbine engine and to generate steam, and a steam turbine (38, 40) configured to use the steam to develop mechanical energy; an auxiliary boiler (14) configured to generate heat used to create auxiliary steam for use in the combined cycle plant and to generate auxiliary boiler exhaust (52); and an auxiliary boiler exhaust heat transfer arrangement (16) configured to transfer heat present in the auxiliary boiler exhaust to the combined cycle plant.Type: ApplicationFiled: January 6, 2014Publication date: July 9, 2015Inventors: James H. Sharp, MIchael Scheurlen, Monica B. Hansel
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Publication number: 20150028675Abstract: An electrical power system includes a power grid and a plurality of power plants connected to the power grid. A central repository including one or more electrical energy storage devices is connected directly to the power grid. The one or more energy storage devices are configured to be connected to the power plants via the power grid. The central repository is operable to draw a portion of a power output produced by one or more of the power plants via the power grid during a first period, for storage therein. The central repository is operable to discharge power to the power grid during a second period shifted in time from the first period. The discharged power is a function of a grid requirement or a function of a power demand notified by an individual power plant of the electrical system.Type: ApplicationFiled: July 29, 2013Publication date: January 29, 2015Inventors: Michael Scheurlen, James H. Sharp, Monica B. Hansel, Michael S. Briesch
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Publication number: 20090252612Abstract: The invention relates to a turbomachine, in particular to a gas turbine and to a method for accelerating a temperature modification of a rotor shaft rotationally mounted in said turbomachine. The aim of said invention is to develop a device and a method for the turbomachine making it possible to reduce the size of a radial split of the turbomachine in order to obtain greater degree of efficiency. The inventive turbomachine comprises a rotor rotationally mounted in the case of the turbomachine, a feeding channel embodied in the rotor for introducing a fluid and an outlet channel embodied in the rotor for removing said fluid. An inlet orifice of the feeding channel is disposed further inside than the outlet orifice of the outlet channel, and means influencing a liquid flow is formed of an actuating device dependent on centrifugal force. Methods for cooling the rotor only by decelerating the gas turbine and for heating the turbomachine rotor by heating fluid flowing therethrough are also disclosed.Type: ApplicationFiled: May 27, 2004Publication date: October 8, 2009Inventors: Fathi Ahmad, Tobias Buchal, Michael Dankert, Gernot Lang, Michael Scheurlen
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Patent number: 7217081Abstract: A seal for sealing a seal groove in a shroud of a turbine vane. The seal may include a cooling system configured to pass cooling fluids through a cooling fluid supply port in a shroud, through a cooling system in which the cooling fluids contact the shroud and the seal, and exhaust the fluids through a gap between adjacent turbine vanes. The seal may include an elongated cooling channel for channeling cooling fluids from a supply to an exhaust channel at a first end. The cooling system may remove heat from the turbine vane shroud, the seal, and other related components, thereby reducing the likelihood of premature failure.Type: GrantFiled: October 15, 2004Date of Patent: May 15, 2007Assignee: Siemens Power Generation, Inc.Inventors: Michael Scheurlen, Xubin E. Gu
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Publication number: 20060083620Abstract: A seal for sealing a seal groove in a shroud of a turbine vane. The seal may include a cooling system configured to pass cooling fluids through a cooling fluid supply port in a shroud, through a cooling system in which the cooling fluids contact the shroud and the seal, and exhaust the fluids through a gap between adjacent turbine vanes. The seal may include an elongated cooling channel for channeling cooling fluids from a supply to an exhaust channel at a first end. The cooling system may remove heat from the turbine vane shroud, the seal, and other related components, thereby reducing the likelihood of premature failure.Type: ApplicationFiled: October 15, 2004Publication date: April 20, 2006Inventors: Michael Scheurlen, Xubin Gu
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Patent number: 6641362Abstract: A component can be subjected to hot gas. At least one duct is provided which can be subjected to a cooling fluid. The duct is bounded by two first walls opposite to one another. The walls include turbulators with the same direction of inclination. In order to avoid constrictions, the turbulators of the first wall have a different angle of inclination relative to a flow direction of the cooling fluid to the turbulators of the second wall.Type: GrantFiled: December 28, 2001Date of Patent: November 4, 2003Assignee: Siemens AktiengesellschaftInventors: Dirk Anding, Hans-Thomas Bolms, Michael Scheurlen, Michael Strassberger, Peter Tiemann
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Patent number: 6631561Abstract: A method is for producing a turbine blade, in particular, a gas turbine blade, comprising a head, a foot, and a blade section, in addition to an internal canalization system, including individual channels through which coolant gas can pass along a flow path within the turbine blade. The turbine blade also includes a throttle device which influences the passage of the coolant gas without impairing the flow of the coolant gas in the intake area. The throttle device is located in the rear section of the flow path, and is positioned upstream of the exit openings.Type: GrantFiled: August 12, 2002Date of Patent: October 14, 2003Assignee: Siemens AktiengesellschaftInventors: Dirk Anding, Michael Scheurlen, Peter Tiemann
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Patent number: 6602050Abstract: A covering element is for the protection of components in a machine subjected to high thermal load, in particular of components in a gas turbine. The covering element includes a wall with a hot side capable of being exposed to a hot medium, and with a cool side located opposite the hot side. The cooling side includes a cooling surface capable of being acted upon by a coolant. Holding elements are provided on the cool side.Type: GrantFiled: September 24, 2001Date of Patent: August 5, 2003Assignee: Siemens AktiengesellschaftInventors: Michael Scheurlen, Peter Tiemann
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Patent number: 6533547Abstract: The turbine blade has an internal space through which a coolant fluid is guided and in which stiffening ribs are formed to reinforce and support the external walls. Coolant screens that reduce the cooling of the stiffening ribs, are arranged in front of the stiffening ribs in order to reduce thermal stresses. The turbine blade is preferably a gas turbine blade.Type: GrantFiled: February 28, 2001Date of Patent: March 18, 2003Assignee: Siemens AktiengesellschaftInventors: Dirk Anding, Burkhard Bischoff-Beiermann, Hans-Thomas Bolms, Michael Scheurlen, Thomas Schulenberg, Peter Tiemann
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Publication number: 20010018021Abstract: The turbine blade has an internal space through which a coolant fluid is guided and in which stiffening ribs are formed to reinforce and support the external walls. Coolant screens that reduce the cooling of the stiffening ribs, are arranged in front of the stiffening ribs in order to reduce thermal stresses. The turbine blade is preferably a gas turbine blade.Type: ApplicationFiled: February 28, 2001Publication date: August 30, 2001Inventors: Dirk Anding, Burkhard Bischoff-Beiermann, Hans-Thomas Bolms, Michael Scheurlen, Thomas Schulenberg, Peter Tiemann
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Patent number: 6039537Abstract: A turbine blade which can be subjected to a hot gas flow includes a substrate, at least one interior space and a plurality of bores leading from the interior space out of the substrate. The substrate is at least partly covered by a heat-insulating-layer system at a suction side and/or a pressure side. At least one of the bores is closed by the heat-insulating-layer system and at least one further bore is open for developing film cooling.Type: GrantFiled: March 4, 1999Date of Patent: March 21, 2000Assignee: Siemens AktiengesellschaftInventor: Michael Scheurlen