Patents by Inventor Felix Guethe
Felix Guethe 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: 11174784Abstract: An exemplary gas turbine power plant includes a gas turbine with a compressor having a compressor inlet. A combustion chamber follows the compressor and a turbine follows the combustion chamber. A cross section of the compressor inlet includes an inner sector and an outer sector in relation to the axis of rotation of the compressor. A plurality of feed ducts introduces oxygen-reduced gas into the inner sector of the compressor inlet. The plurality of feed ducts is arranged in the compressor inlet so as to be distributed in a circumferential direction on a circle concentrically with respect to the axis of the gas turbine.Type: GrantFiled: December 29, 2017Date of Patent: November 16, 2021Assignee: ANSALDO ENERGIA SWITZEERLAND AGInventors: Jaan Hellat, Eribert Benz, Frank Graf, Torsten Wind, Felix Guethe, Klaus Doebbeling
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Patent number: 10557378Abstract: A system for regulating condensation of a flue gas in a steam generator is provided. The system includes a temperature controller and a flue gas analyzer. The temperature controller is configured to control a temperature of a component of the steam generator, the component being in heating-contact with the flue gas. The flue gas analyzer is configured to communicate with the temperature controller and to obtain a measurement of an amount of an acid-forming compound in the flue gas. The temperature controller adjusts the temperature of the component based at least in part on the measurement such that the temperature of the component is above an acid dew point of the flue gas when the component is in heating-contact with the flue gas.Type: GrantFiled: March 7, 2016Date of Patent: February 11, 2020Assignee: GENERAL ELECTRIC TECHNOLOGY GMBHInventors: Felix Guethe, John Martin Nilsson, Stefano Bernero, Mariah Couzzi Carneiro
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Patent number: 9970353Abstract: 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: GrantFiled: September 18, 2014Date of Patent: May 15, 2018Assignee: ANSALDO ENERGIA IP UK LIMITEDInventors: Felix Guethe, Eribert Benz, Frank Graf
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Publication number: 20180119612Abstract: An exemplary gas turbine power plant includes a gas turbine with a compressor having a compressor inlet. A combustion chamber follows the compressor and a turbine follows the combustion chamber. A cross section of the compressor inlet includes an inner sector and an outer sector in relation to the axis of rotation of the compressor. A plurality of feed ducts introduces oxygen-reduced gas into the inner sector of the compressor inlet. The plurality of feed ducts is arranged in the compressor inlet so as to be distributed in a circumferential direction on a circle concentrically with respect to the axis of the gas turbine.Type: ApplicationFiled: December 29, 2017Publication date: May 3, 2018Applicant: ANSALDO ENERGIA SWITZERLAND AGInventors: Jaan HELLAT, Eribert Benz, Frank Graf, Torsten Wind, Felix Guethe, Klaus Doebbeling
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Patent number: 9951656Abstract: The invention relates to a method for operating a gas turbine system, wherein the gas turbine system includes a compressor, a combustor, a heat recovery steam generator, a scrubber, a direct contact cooler. The method includes introducing the scrubbing fluid discharged from the scrubber into the direct contact cooler, contacting the scrubbing fluid in the direct contact cooler with the exhaust gas discharged from the heat recovery steam generator in order to remove a portion of nitrogen oxide therefrom; feeding the exhaust gas discharged from the direct contact cooler into the compressor. With the technical solution of the present invention, nitrogen oxide in the exhaust gas is reduced to a certain extent by means of used scrubbing fluid from the scrubber. This solution may improve the efficiency in reduction of nitrogen oxide with a simple and feasible manner.Type: GrantFiled: September 23, 2014Date of Patent: April 24, 2018Assignee: ANSALDO ENERGIA IP UK LIMITEDInventors: Wuyin Wang, Vasileios Stefanis, Julie Clavier, Mirco Colombo, Felix Guethe
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Patent number: 9856792Abstract: The invention relates to a method for operating a gas turbine, in which an oxygen-reduced gas and fresh air are delivered to a compressor of the gas turbine in a radially staged manner, the fresh air being delivered via an outer sector of the inlet cross section in relation to the axis of rotation of the compressor, and the oxygen-reduced gas being delivered via an inner sector of the inlet cross section in relation to the axis of rotation of the compressor. The invention relates, further, to a gas turbine power plant with a gas turbine having a compressor inlet which is followed by the flow duct of the compressor and which is divided into an inner sector and an outer sector, a feed for an oxygen-reduced gas being connected to the inner sector of the compressor inlet, and a fresh air feed being connected to the outer sector of the compressor inlet.Type: GrantFiled: August 25, 2014Date of Patent: January 2, 2018Assignee: ANSALDO ENERGIA SWITZERLAND AGInventors: Jaan Hellat, Eribert Benz, Frank Graf, Torsten Wind, Felix Guethe, Klaus Doebbeling
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Publication number: 20170292708Abstract: A method for combusting a fuel includes, providing an oxidizer mass flow, providing a first oxidizer partial mass flow, combusting a fuel in the first oxidizer partial mass flow thus providing a mass flow of combustion products, providing the mass flow of combustion products to a duct, and ducting the mass flow of combustion products through the duct in a flow direction. A flow of a first supplementary fluid which is essentially aligned with the flow of combustion products is selectively provided as one of an oxidizer and a premixed fuel/oxidizer mixture. A further mass flow is discharged laterally offset with respect to a discharged mass flow of first supplementary fluid and across the flow cross section of the duct, to provide mass flows of supplementary fluids as laterally stratified layers of the respective supplementary fluids.Type: ApplicationFiled: April 10, 2017Publication date: October 12, 2017Applicant: ANSALDO ENERGIA SWITZERLAND AGInventors: Steffen TERHAAR, Felix GÜTHE
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Publication number: 20170254227Abstract: A system for regulating condensation of a flue gas in a steam generator is provided. The system includes a temperature controller and a flue gas analyzer. The temperature controller is configured to control a temperature of a component of the steam generator, the component being in heating-contact with the flue gas. The flue gas analyzer is configured to communicate with the temperature controller and to obtain a measurement of an amount of an acid-forming compound in the flue gas. The temperature controller adjusts the temperature of the component based at least in part on the measurement such that the temperature of the component is above an acid dew point of the flue gas when the component is in heating-contact with the flue gas.Type: ApplicationFiled: March 7, 2016Publication date: September 7, 2017Applicant: GENERAL ELECTRIC TECHNOLOGY GMBHInventors: Felix Guethe, John Martin Nilsson, Stefano Bernero, Mariah Couzzi Carneiro
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Patent number: 9664110Abstract: The invention relates to a method for operating a gas turbine which includes a compressor with annular inlet area, at least two burners, a combustion chamber and a turbine. According to the method, at least one first partial intake flow, consisting of oxygen-reduced gas which has an oxygen concentration which is lower than the average oxygen concentration of the compressor intake flow, and at least one second partial intake flow, consisting of fresh air, are fed to the compressor in an alternating manner in the circumferential direction of the inlet area. In addition, the invention relates to a gas turbine power plant with a gas turbine, the compressor inlet of which includes at least one first segment and at least one second segment which are arranged in an alternating manner around a compressor inlet in the circumferential direction, wherein a feed for an oxygen-reduced gas is connected to the first segment and a fresh air feed is connected to the second segment of the compressor inlet.Type: GrantFiled: September 22, 2014Date of Patent: May 30, 2017Assignee: ANSALDO ENERGIA SWITZERLAND AGInventors: Felix Guethe, Madhavan Narasimhan Poyyapakkam, Frank Graf, Bruno Schuermans, Eribert Benz
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Patent number: 9500127Abstract: The power plant includes a gas turbine unit adapted to feed flue gases into a diverter where they are divided into a recirculated flow and a discharged flow. The recirculated flow is fed into a mixer together with fresh air to form a mixture that is fed to the gas turbine unit. The gas turbine unit includes a combustion chamber where a fuel is burnt together with the mixture. A control unit is provided, that is supplied with information regarding the fuel C2+ and/or H2 content and is connected to at least the diverter to drive it and online regulate the recirculated flow mass flow rate in relation to the fuel C2+ and/or H2 content.Type: GrantFiled: October 13, 2011Date of Patent: November 22, 2016Assignee: GENERAL ELECTRIC TECHNOLOGY GMBHInventors: Stefan Rofka, Frank Sander, Eribert Benz, Felix Güthe, Dragan Stankovic
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Patent number: 9429079Abstract: In a method for operating a gas turbine (10), a CO2-containing gas is compressed in a compressor (13), the compressed gas is used to burn a fuel in at least one subsequent combustion chamber (14, 18), and the hot combustion gases are used to drive at least one turbine (17, 21). Improved control and performance can be achieved by measuring the species concentration of the gas mixture flowing through the gas turbine (10) at several points within the gas turbine (10) by a distributed plurality of species concentration sensors (22; 22a-1; 23), and utilizing the measured concentration values to control the gas turbine (10) and/or optimize the combustion performance of the gas turbine (10).Type: GrantFiled: October 9, 2012Date of Patent: August 30, 2016Assignee: GENERAL ELECTRIC TECHNOLOGY GMBHInventors: Felix Guethe, Dragan Stankovic, Meike Gumprecht-Liebau
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Patent number: 9297311Abstract: A method is disclosed for operating a gas turbine power plant having a gas turbine, a heat recovery steam generator and an flue gas splitter which splits flue gases into a first flue gas flow for recirculation into an inlet flow of the gas turbine and into a second flue gas flow for discharge to an environment. An oxygen-depleted gas can be used in an open cooling system for cooling hot gas parts of the gas turbine. A split compressor intake can be provided for separate feed of recirculated flue gas and fresh air into a compressor intake. Compressor blades can include a separating band which blocks intermixing of recirculated flue gas and fresh air during compression.Type: GrantFiled: March 21, 2012Date of Patent: March 29, 2016Assignee: ALSTOM TECHNOLOGY LTDInventors: Jaan Hellat, Stefan Rofka, Michael Hoevel, Eribert Benz, Andre Burdet, Frank Sander, Felix Guethe
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Publication number: 20160061114Abstract: The invention relates to a method for controlling a gas turbine, operating with an integral fuel reactivity measurement concept. In order to fast determine a safe operation range of the gas turbine with respect to flashback and blow-out, the method includes deducing the fuel composition and therefore the fuel reactivity by combined measurements of (n?1) physico-chemical properties of a fuel mixture with n>1 fuel components, for deriving the concentration of one component for each physico-chemical property of the fuel gas mixture or for determining of a ratio of the fuels with known compositions and adjusting at least one operation parameter of the gas turbine at least partially based on the determined property of the fuel gas mixture entering the combustors. With the technical solution of the present invention, by way of detecting fast changes in fuel gas, it is assured that the gas turbine may operate with varieties of fuel gas under optimized performance and in safe operation ranges.Type: ApplicationFiled: August 26, 2015Publication date: March 3, 2016Inventors: Felix GUETHE, Torsten Wind, Hanspeter Zinn, Michael KLEEMANN
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Patent number: 9217367Abstract: A method is provided for operating a gas turbine power plant with flue gas recirculation, in which the flue gases are split into a first flue gas flow for recirculation into an intake flow of the gas turbine and into a second flue gas flow for discharging to the environment. The first flue gas flow is cooled in a recooler before its mixing with ambient air for forming the intake flow. The recirculation flow, after being recooled, is reheated in order to avoid condensation of vaporous water contained in the recycled flue gases during cooling as a result of the mixing with the ambient air. A gas turbine power plant is provided with flue gas recirculation, which includes a heat exchanger for reheating the recirculation flow after being recooled.Type: GrantFiled: July 27, 2012Date of Patent: December 22, 2015Assignee: ALSTOM TECHNOLOGY LTDInventors: Frank Sander, Felix Guethe, Frank Graf
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Publication number: 20150337742Abstract: A method for operating a gas turbine plant is provided. According to the method a first fuel gas with a first fuel reactivity and a second fuel gas with a second fuel reactivity which is higher than the first fuel reactivity are injected into a combustor of the gas turbine, and the ratio of the mass flows of the second fuel gas to the first fuel gas is controlled depending on the combustion behavior of the combustor. A gas turbine plant configured to carry out the method is further shown.Type: ApplicationFiled: July 31, 2015Publication date: November 26, 2015Inventors: Stefano BERNERO, Frank GRAF, Gianfranco Ludovico GUIDATI, Martin GASSNER, Felix GUETHE
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Patent number: 9170023Abstract: Provided is a control method for a gas turbine plant having a first and a second combustors in series, such that combustion gases produced in the first combustor flows into the second combustor. The second combustor having a fuel lance with internal partitions, for injecting at least one fuel and a gas having a mixture of inert gas and support air into the second combustor. The partitions enable the gas to carry, and/or veil, at least one of the fuels as the fuel exits the lance. A variable of the second combustor is measured and the inert gas to support air mixture varies in response to variations of the variable so as to at least partially compensate for the operational effects of the variable on the operation of the second combustor.Type: GrantFiled: March 30, 2009Date of Patent: October 27, 2015Assignee: ALSTOM TECHNOLOGY LTD.Inventors: Felix Guethe, Jonas Hurter, Giovanni Cataldi, Gijsbertus Oomens, Manfred Wirsum, Franz Joos
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Patent number: 9010081Abstract: 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: GrantFiled: October 14, 2011Date of Patent: April 21, 2015Assignee: Alstom Technology Ltd.Inventors: Eribert Benz, Gian-Luigi Agostinelli, Andreas Brautsch, Gisbert Wolfgang Kaefer, Felix Güthe
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Publication number: 20150089956Abstract: The invention relates to a method for operating a gas turbine system, wherein the gas turbine system includes a compressor, a combustor, a heat recovery steam generator, a scrubber, a direct contact cooler. The method includes introducing the scrubbing fluid discharged from the scrubber into the direct contact cooler, contacting the scrubbing fluid in the direct contact cooler with the exhaust gas discharged from the heat recovery steam generator in order to remove a portion of nitrogen oxide therefrom; feeding the exhaust gas discharged from the direct contact cooler into the compressor. With the technical solution of the present invention, nitrogen oxide in the exhaust gas is reduced to a certain extent by means of used scrubbing fluid from the scrubber. This solution may improve the efficiency in reduction of nitrogen oxide with a simple and feasible manner.Type: ApplicationFiled: September 23, 2014Publication date: April 2, 2015Inventors: Wuyin WANG, Vasileios Stefanis, Julie Clavier, Mirco Colombo, Felix Guethe
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Publication number: 20150007576Abstract: The invention relates to a method for operating a gas turbine which includes a compressor with annular inlet area, at least two burners, a combustion chamber and a turbine. According to the method, at least one first partial intake flow, consisting of oxygen-reduced gas which has an oxygen concentration which is lower than the average oxygen concentration of the compressor intake flow, and at least one second partial intake flow, consisting of fresh air, are fed to the compressor in an alternating manner in the circumferential direction of the inlet area. In addition, the invention relates to a gas turbine power plant with a gas turbine, the compressor inlet of which includes at least one first segment and at least one second segment which are arranged in an alternating manner around a compressor inlet in the circumferential direction, wherein a feed for an oxygen-reduced gas is connected to the first segment and a fresh air feed is connected to the second segment of the compressor inlet.Type: ApplicationFiled: September 22, 2014Publication date: January 8, 2015Inventors: Felix GUETHE, Madhavan Narasimhan Poyyapakkam, Frank Graf, Bruno Schuermans, Eribert Benz
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Publication number: 20150000296Abstract: 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: ApplicationFiled: September 18, 2014Publication date: January 1, 2015Inventors: Felix GUETHE, Eribert Benz, Frank Graf