Patents by Inventor David McDeed
David McDeed 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: 20230340896Abstract: A power plant comprises supplies of hydrogen fuel, oxygen fuel and water, a boiler comprising a burner for combusting hydrogen and oxygen to produce heat, combustion products and low/intermediate-pressure steam and a first heat exchanger configured to heat water to generate high-pressure steam, and a steam turbine comprising a first turbine configured to be driven only with the high-pressure steam to provide input to a first electrical generator and a second turbine configured to be driven by low/intermediate-pressure steam from the boiler. A method of operating a steam plant comprises combusting hydrogen fuel in a boiler to produce combustion products and LP/IP steam, turning a turbine with the combustion products, condensing water from the combustion products in a condenser, heating water from the condenser in a heat exchanger within the boiler to produce HP steam and turning a turbine with the steam from the first heat exchanger.Type: ApplicationFiled: April 11, 2023Publication date: October 26, 2023Inventor: David McDeed
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Publication number: 20230291232Abstract: A power plant is configured to output power to a grid power system and comprises a hydrogen generation system configured to produce hydrogen, a gas turbine combined cycle power plant comprising a gas turbine engine configured to combust hydrogen from the hydrogen generation system to generate a gas stream that can be used to rotate a turbine shaft and a heat recovery steam generator (HRSG) configured to generate steam with the gas stream of the gas turbine engine to rotate a steam turbine, a storage system configured to store hydrogen produced by the hydrogen generation system, and a controller configured to operate the hydrogen generation system with electricity from the grid power system when the grid power system has excess energy and balance active and reactive loads on the grid power system using at least one of the hydrogen generation system and the gas turbine combined cycle power plant.Type: ApplicationFiled: April 27, 2023Publication date: September 14, 2023Inventors: David Hunt, David McDeed, Mark Peak, Peter Luessen, Brian Allen, Jeanfils Saint-Cyr
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Publication number: 20230291231Abstract: A power plant is configured to output power to a grid power system and comprises a hydrogen generation system configured to produce hydrogen, a gas turbine combined cycle power plant comprising a gas turbine engine configured to combust hydrogen from the hydrogen generation system to generate a gas stream that can be used to rotate a turbine shaft and a heat recovery steam generator (HRSG) configured to generate steam with the gas stream of the gas turbine engine to rotate a steam turbine, a storage system configured to store hydrogen produced by the hydrogen generation system, and a controller configured to operate the hydrogen generation system with electricity from the grid power system when the grid power system has excess energy and balance active and reactive loads on the grid power system using at least one of the hydrogen generation system and the gas turbine combined cycle power plant.Type: ApplicationFiled: April 27, 2023Publication date: September 14, 2023Inventors: David Hunt, David McDeed, Mark Peak, Peter Luessen, Brian Allen, Jeanfils Saint-Cyr
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Patent number: 11670960Abstract: A power plant is configured to output power to a grid power system and comprises a hydrogen generation system configured to produce hydrogen, a gas turbine combined cycle power plant comprising a gas turbine engine configured to combust hydrogen from the hydrogen generation system to generate a gas stream that can be used to rotate a turbine shaft and a heat recovery steam generator (HRSG) configured to generate steam with the gas stream of the gas turbine engine to rotate a steam turbine, a storage system configured to store hydrogen produced by the hydrogen generation system, and a controller configured to operate the hydrogen generation system with electricity from the grid power system when the grid power system has excess energy and balance active and reactive loads on the grid power system using at least one of the hydrogen generation system and the gas turbine combined cycle power plant.Type: GrantFiled: August 31, 2021Date of Patent: June 6, 2023Assignee: Mitsubishi Power Americas, Inc.Inventors: David Hunt, David McDeed, Mark Peak, Peter Luessen, Brian Allen, Jeanfils Saint-Cyr
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Patent number: 11635003Abstract: An emission reduction system for a combined cycle power plant including a gas turbine and heat recovery steam generator (HRSG) can comprise a stationary emission converter in fluid communication with and disposed upstream of the HRSG, and a diversion system operably coupled to an exhaust passage of the gas turbine, the exhaust passage defining an exhaust path for exhaust gas of the gas turbine through the heat recovery steam generator, the diversion system operable to define a primary exhaust path excluding the stationary emission converter and a start-up exhaust path including the stationary emission converter.Type: GrantFiled: October 5, 2021Date of Patent: April 25, 2023Assignee: Mitsubishi Power Americas, Inc.Inventors: David McDeed, Maria Kacer, Eric J. Albrecht, David Hunt
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Patent number: 11623181Abstract: An apparatus for a gas turbine power plant that uniquely configures emission control equipment such that the plant can extend the emissions compliant operational range, the apparatus including a plurality of oxidation (CO) catalysts arranged in series.Type: GrantFiled: October 4, 2017Date of Patent: April 11, 2023Assignee: MITSUBISHI POWER AMERICAS, INC.Inventors: David McDeed, George Pyros, Anthony Bravato
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Publication number: 20220065162Abstract: A power plant is configured to output power to a grid power system and comprises a hydrogen generation system configured to produce hydrogen, a gas turbine combined cycle power plant comprising a gas turbine engine configured to combust hydrogen from the hydrogen generation system to generate a gas stream that can be used to rotate a turbine shaft and a heat recovery steam generator (HRSG) configured to generate steam with the gas stream of the gas turbine engine to rotate a steam turbine, a storage system configured to store hydrogen produced by the hydrogen generation system, and a controller configured to operate the hydrogen generation system with electricity from the grid power system when the grid power system has excess energy and balance active and reactive loads on the grid power system using at least one of the hydrogen generation system and the gas turbine combined cycle power plant.Type: ApplicationFiled: August 31, 2021Publication date: March 3, 2022Inventors: David Hunt, David McDeed, Mark Peak, Peter Luessen, Brian Allen, Jeantfils Saint-Cyr
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Publication number: 20220025785Abstract: An emission reduction system for a combined cycle power plant including a gas turbine and heat recovery steam generator (HRSG) can comprise a stationary emission converter in fluid communication with and disposed upstream of the HRSG, and a diversion system operably coupled to an exhaust passage of the gas turbine, the exhaust passage defining an exhaust path for exhaust gas of the gas turbine through the heat recovery steam generator, the diversion system operable to define a primary exhaust path excluding the stationary emission converter and a start-up exhaust path including the stationary emission converter.Type: ApplicationFiled: October 5, 2021Publication date: January 27, 2022Inventors: David McDeed, Maria Kacer, Eric J. Albrecht, David Hunt
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Patent number: 11168588Abstract: An emission reduction system for a combined cycle power plant including a gas turbine and heat recovery steam generator (HRSG) can comprise a stationary emission converter in fluid communication with and disposed upstream of the HRSG, and a diversion system operably coupled to an exhaust passage of the gas turbine, the exhaust passage defining an exhaust path for exhaust gas of the gas turbine through the heat recovery steam generator, the diversion system operable to define a primary exhaust path excluding the stationary emission converter and a start-up exhaust path including the stationary emission converter.Type: GrantFiled: October 1, 2018Date of Patent: November 9, 2021Assignee: Mitsubishi Power Americas, Inc.Inventors: David McDeed, Maria Kacer, Eric J. Albrecht, David Hunt
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Patent number: 11092080Abstract: Systems and methods for starting a gas turbine engine can comprise a generator to be driven by the gas turbine engine to supply power to a grid system, a first switch to electrically couple and decouple the generator from the grid system, a first static frequency converter having a first capacity, a second static frequency converter having a second capacity, control means for electrically coupling and decoupling the first and second static frequency converters from the grid system, a synchronizer and a controller configured to operate the generator as a starter-motor with power from: the first static frequency converter to turn the gas turbine engine at a first rate sufficient to start the gas turbine engine within a first time period or the first static frequency converter and the second static frequency converter in synchronization to turn the gas turbine engine at a second rate greater than the first rate.Type: GrantFiled: November 20, 2019Date of Patent: August 17, 2021Assignee: Mitsubishi Power Americas, Inc.Inventor: David McDeed
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Publication number: 20210148284Abstract: Systems and methods for starting a gas turbine engine can comprise a generator to be driven by the gas turbine engine to supply power to a grid system, a first switch to electrically couple and decouple the generator from the grid system, a first static frequency converter having a first capacity, a second static frequency converter having a second capacity, control means for electrically coupling and decoupling the first and second static frequency converters from the grid system, a synchronizer and a controller configured to operate the generator as a starter-motor with power from: the first static frequency converter to turn the gas turbine engine at a first rate sufficient to start the gas turbine engine within a first time period or the first static frequency converter and the second static frequency converter in synchronization to turn the gas turbine engine at a second rate greater than the first rate.Type: ApplicationFiled: November 20, 2019Publication date: May 20, 2021Inventor: David McDeed
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Publication number: 20200102856Abstract: An emission reduction system for a combined cycle power plant including a gas turbine and heat recovery steam generator (HRSG) can comprise a stationary emission converter in fluid communication with and disposed upstream of the HRSG, and a diversion system operably coupled to an exhaust passage of the gas turbine, the exhaust passage defining an exhaust path for exhaust gas of the gas turbine through the heat recovery steam generator, the diversion system operable to define a primary exhaust path excluding the stationary emission converter and a start-up exhaust path including the stationary emission converter.Type: ApplicationFiled: October 1, 2018Publication date: April 2, 2020Inventors: David McDeed, Maria Kacer, Eric J. Albrecht, David Hunt
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Publication number: 20180021727Abstract: An apparatus for a gas turbine power plant that uniquely configures emission control equipment such that the plant can extend the emissions compliant operational range, the apparatus including a plurality of oxidation (CO) catalysts arranged in series.Type: ApplicationFiled: October 4, 2017Publication date: January 25, 2018Applicant: MITSUBISHI HITACHI POWER SYSTEMS AMERICAS, INC.Inventors: David McDeed, George Pyros, Anthony Bravato
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Patent number: 9399927Abstract: An apparatus for a gas turbine power plant that uniquely configures emission control equipment such that the plant can extend the emissions compliant operational range, the apparatus including a plurality of oxidation (CO) catalysts arranged in series, optimized SCR for high NO2 reduction, Control valves with added capabilities for low turndown and other characteristics.Type: GrantFiled: November 25, 2014Date of Patent: July 26, 2016Assignee: Mitsubishi Hitachi Power Systems Americas, Inc.Inventors: David McDeed, George Pyros, Anthony Bravato
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Publication number: 20150204214Abstract: An apparatus for a gas turbine power plant that uniquely configures emission control equipment such that the plant can extend the emissions compliant operational range, the apparatus including a plurality of oxidation (CO) catalysts arranged in series, optimized SCR for high NO2 reduction, Control valves with added capabilities for low turndown and other characteristics.Type: ApplicationFiled: November 25, 2014Publication date: July 23, 2015Applicant: MITSUBISHI HITACHI POWER SYSTEMS AMERICAS, INC.Inventors: David McDeed, George Pyros, Anthony Bravato
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Publication number: 20150204241Abstract: An apparatus for a gas turbine power plant that uniquely configures emission control equipment such that the plant can extend the emissions compliant operational range, the apparatus including a plurality of oxidation (CO) catalysts arranged in series.Type: ApplicationFiled: September 25, 2014Publication date: July 23, 2015Applicant: MITSUBISHI HITACHI POWER SYSTEMS AMERICAS, INC.Inventors: David McDeed, George Pyros, Anthony Bravato