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公开(公告)号：US12091992B2
公开(公告)日：2024-09-17
申请号：US18228480
申请日：2023-07-31
发明人： Todd Eric Carlson
IPC分类号： F01K23/10
CPC分类号： F01K23/10 , F05D2220/72 , F05D2220/74 , F05D2220/75 , F05D2240/35 , F05D2260/2322
摘要： A power plant comprises a steam system, a first electrolyzer, a heat storage system, and a heat exchanger configured to exchange thermal energy between the steam system, the first electrolyzer and the heat storage system. A method of operating an electrolyzer in a combined cycle power plant comprises operating a steam system to convert water to steam, operating an electrolyzer in a standby mode, the electrolyzer configured to convert water and electricity to hydrogen and oxygen when the electrolyzer is in an operating mode, circulating water from the steam system through a heat exchanger, circulating a first heat transfer medium between the electrolyzer and the heat exchanger, and circulating a second heat transfer medium between the heat exchanger and a thermal storage container.
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公开(公告)号：US20240183289A1
公开(公告)日：2024-06-06
申请号：US18286409
申请日：2022-01-19
发明人： Shimin Deng
CPC分类号： F01K23/101 , F01K13/02 , F02C6/18 , F02C7/224 , F05D2210/12 , F05D2220/72 , F05D2260/606
摘要： A power production facility comprises a combined cycle power plant comprising a gas turbine engine configured to compress air for combustion with a fuel in a combustor to produce exhaust gas that can be used to produce rotational shaft power for generating electricity and a steam system configured to produce steam from water with the exhaust gas to rotate a steam turbine for generating additional electricity, an electrolyzer configured to generate H2 and O2, wherein the electrolyzer is configured to provide the H2 to the combustor for combustion and the O2 to portions of the gas turbine engine, and a heat exchanger configured to receive the O2 and fluid from the steam system and to heat the O2 before passing the O2 into portions of the gas turbine engine.
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公开(公告)号：US20230335995A1
公开(公告)日：2023-10-19
申请号：US17722996
申请日：2022-04-18
CPC分类号： H02J3/32 , H02J7/00036 , H02J7/00047 , H02J2207/20
摘要： A battery system for storing electric energy on a grid system comprises a stationary energy storage facility comprising a first bank of batteries comprising a first plurality of batteries of a first type, wherein the first type comprises stationary storage batteries, a local power conversion system for receiving output of the first plurality of batteries and outputting power to the grid system, and a local controller for integrating and operating the local power conversion system with the first bank of batteries; an augmentation battery system comprising a second bank of batteries comprising a second plurality of batteries of a second type, wherein the second type of batteries comprises electric vehicle batteries, a secondary power conversion system for receiving output of the second plurality of batteries and outputting power to the local power conversion system, and a battery management system for operating the second bank of batteries, the battery management system comprising part of the electric vehicle batteries; and a translation battery management system configured to translate communications of the pack battery management system for communicating with the local controller.
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公开(公告)号：US20230291232A1
公开(公告)日：2023-09-14
申请号：US18140381
申请日：2023-04-27
发明人： David Hunt , David McDeed , Mark Peak , Peter Luessen , Brian Allen , Jeanfils Saint-Cyr
CPC分类号： H02J15/008 , F02C3/20 , F02C6/00 , H02J3/32 , H02J3/381 , F05D2220/76 , H02J3/18 , Y02E20/16
摘要： 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.
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公开(公告)号：US11670960B2
公开(公告)日：2023-06-06
申请号：US17446597
申请日：2021-08-31
发明人： David Hunt , David McDeed , Mark Peak , Peter Luessen , Brian Allen , Jeanfils Saint-Cyr
CPC分类号： H02J15/008 , F02C3/20 , F02C6/00 , H02J3/32 , H02J3/381 , F05D2220/32 , F05D2220/76 , H02J3/18 , H02J2300/24 , H02J2300/28 , Y02E20/16
摘要： 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.
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公开(公告)号：US11536140B2
公开(公告)日：2022-12-27
申请号：US17474429
申请日：2021-09-14
发明人： Antonio Melo , Noah Rowe
摘要： A gas turbine engine rotor assembly comprises a torque tube, turbine stage and stiffening mass. The torque tube comprises a shaft extending from a forward location to an aft end, and a shaft fastening flange disposed at the aft end. The turbine stage comprises a disc, a disc adapter extending forward from the disc, and a disc fastening flange extending from the disc adapter and couplable to the shaft fastening flange at an interface. The stiffening mass is positioned proximate the interface to reduce operational stress in the torque tube. A method of reducing operational stress in a rotor assembly comprises de-stacking a rotor stack, separating a first stage rotor disc adapter from a torque tube, attaching a stiffening mass to an inner diameter of one or both of the disc adapter and the torque tube, attaching the disc adapter to the torque tube, and re-stacking the rotor stack.
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公开(公告)号：US20220397057A1
公开(公告)日：2022-12-15
申请号：US17530864
申请日：2021-11-19
发明人： Benjamin Shimin Deng
摘要： A power production facility comprises a power plant that combusts fuel to produce energy for generating electricity and exhaust gas, an emissions capture unit to receive the exhaust gas to remove pollutants, a fuel cell to generate electricity via reaction of constituents and provide byproduct heat to operate the emissions capture unit, and an electrolyzer to generate constituents for the fuel cell from water byproduct received from the fuel cell resulting from the reaction process. A method of generating power with an emissions capture unit comprises providing a hybrid power plant configured to generate hydrogen gas and oxygen gas with an electrolyzer from a water input using an electrical input, generate electricity, heat and the water input with a fuel cell from the hydrogen gas and oxygen gas of the electrolyzer, and capture emissions from exhaust gas with an emissions capture unit using the heat from the fuel cell.
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公开(公告)号：US11434786B2
公开(公告)日：2022-09-06
申请号：US16991796
申请日：2020-08-12
发明人： Benjamin Shimin Deng
摘要： A power plant can comprise a gas turbine productive of an exhaust gas, a steam turbine, a heat recovery steam generator that extracts heat from gas turbine exhaust gas and supplies fluid to the steam turbine, a thermal storage unit storing a thermal storage working medium that is configured to discharge thermal energy into the fluid supplied from the heat recovery steam generator to supplement power generation by the steam turbine, a first heat exchanger disposed within the heat recovery steam generator to transfer thermal energy from the exhaust gas to the thermal storage working medium, and a second heat exchanger in flow communication with the heat recovery steam generator and the thermal storage unit, the second heat exchanger facilitating a direct heat transfer of thermal energy from the thermal storage working medium in the thermal storage unit to the fluid supplied from the heat recovery steam generator.
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公开(公告)号：US11268409B2
公开(公告)日：2022-03-08
申请号：US16631127
申请日：2018-11-07
发明人： Scott Cloyd , Jiro Asakuno , Toshihiko Toyota , Masaru Takamatsu , Michael Ducker , David Hunt
摘要： A power plant system can comprise a first gas turbine having a first efficiency to produce a first exhaust flow, a first electrical generator driven by the first gas turbine, a first heat recovery steam generator to receive the first exhaust flow and generate a first steam flow, a second gas turbine having a second efficiency less than the first efficiency to produce a second exhaust flow, a second electrical generator driven by the second gas turbine, and an exhaust gas conditioning device to reduce temperature of the second exhaust flow, a steam turbine driving a steam electrical generator to receive the first steam flow. The second gas turbine can be selectively operated to generate electricity with the second electrical generator under peak loading conditions when a sum of output from the steam electrical generator and the first electrical generator are less than an electrical demand from a grid.
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公开(公告)号：US20210254547A1
公开(公告)日：2021-08-19
申请号：US17252177
申请日：2018-06-27
发明人： Benjamin Shimin DENG
摘要： A gas turbine combined-cycle power plant can comprise a gas turbine engine, a heat recovery steam generator, a steam turbine, a fuel regasification system and a Rankine Cycle system. The gas turbine engine can comprise a compressor for generating compressed air, a combustor that can receive a fuel and the compressed air to produce combustion gas, and a turbine for receiving the combustion gas and generating exhaust gas. The heat recovery steam generator is configured to generate steam from water utilizing the exhaust gas. The steam turbine is configured to produce power from steam from the heat recovery steam generator. The fuel regasification system is configured to convert the fuel from a liquid to a gas before entering the combustor. The Organic Rankine Cycle system is configured to cool compressed air extracted from the compressor to cool the gas turbine engine, and heat liquid fuel entering the fuel regasification system.
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