公开(公告)号：US11572811B2

公开(公告)日：2023-02-07

申请号：US17668342

申请日：2022-02-09

申请人： Rondo Energy, Inc.

发明人： John Setel O'Donnell ,  Peter Emery von Behrens ,  Chiaki Treynor ,  Jeremy Quentin Keller ,  Matthieu Jonemann ,  Robert Ratz ,  Yusef Desjardins Ferhani

IPC分类号： F28D20/00 ,  F01K3/02 ,  H02M1/00 ,  F01K3/08 ,  F01K3/18 ,  F01K15/00 ,  H01M8/04014 ,  H01M8/04029 ,  H01M8/04007 ,  B63H11/00 ,  F03G6/00 ,  F01K13/02 ,  F22B29/06 ,  F22B35/10 ,  H02J1/10 ,  H02J3/00 ,  H02J3/04 ,  F03D9/18 ,  B63H11/12 ,  B63H11/14 ,  B63H11/16 ,  F01K11/02 ,  F01K19/04

摘要： An energy storage system converts variable renewable electricity (VRE) to continuous heat at over 1000° C. Intermittent electrical energy heats a solid medium. Heat from the solid medium is delivered continuously on demand. An array of bricks incorporating internal radiation cavities is directly heated by thermal radiation. The cavities facilitate rapid, uniform heating via reradiation. Heat delivery via flowing gas establishes a thermocline which maintains high outlet temperature throughout discharge. Gas flows through structured pathways within the array, delivering heat which may be used for processes including calcination, hydrogen electrolysis, steam generation, and thermal power generation and cogeneration. Groups of thermal storage arrays may be controlled and operated at high temperatures without thermal runaway via deep-discharge sequencing. Forecast-based control enables continuous, year-round heat supply using current and advance information of weather and VRE availability. High-voltage DC power conversion and distribution circuitry improves the efficiency of VRE power transfer into the system.

公开(公告)号：US20230003144A1

公开(公告)日：2023-01-05

申请号：US17757200

申请日：2020-12-07

申请人： General Electric Company

发明人： Xinsheng LOU ,  Stanley KMIOTEK

IPC分类号： F01K13/00 ,  F01K13/02

摘要： A system for maintaining electrical power continuity in a steam-based power plant is provided. The system includes a fossil fuel-fired power generation unit and an electrical power storage apparatus. The fossil fuel-fired power generation unit is operative to generate and provide electrical power to an electrical power grid. The electrical power storage apparatus is electrically coupled to the fossil fuel-fired power generation unit and operative to: receive and store electrical power from the fossil fuel-fired power generation unit during periods of surplus electrical power generation by the fossil fuel-fired power generation unit; and to provide electrical power to a component of the fossil fuel-fired power generation unit during periods of electrical power shortage by the electrical power grid.

公开(公告)号：US11530625B2

公开(公告)日：2022-12-20

申请号：US17650517

申请日：2022-02-09

申请人： Rondo Energy, Inc.

发明人： John Setel O'Donnell ,  Peter Emery von Behrens ,  Chiaki Treynor ,  Jeremy Quentin Keller ,  Matthieu Jonemann ,  Robert Ratz ,  Yusef Desjardins Ferhani

IPC分类号： F01K3/02 ,  H02M1/00 ,  F01K3/08 ,  F01K3/18 ,  F01K15/00 ,  F28D20/00 ,  H01M8/04014 ,  H01M8/04029 ,  H01M8/04007 ,  B63H11/00 ,  F03G6/00 ,  F01K13/02 ,  F22B29/06 ,  F22B35/10 ,  H02J1/10 ,  H02J3/00 ,  H02J3/04 ,  F03D9/18 ,  B63H11/12 ,  B63H11/14 ,  B63H11/16 ,  F01K11/02 ,  F01K19/04

摘要： An energy storage system converts variable renewable electricity (VRE) to continuous heat at over 1000° C. Intermittent electrical energy heats a solid medium. Heat from the solid medium is delivered continuously on demand. An array of bricks incorporating internal radiation cavities is directly heated by thermal radiation. The cavities facilitate rapid, uniform heating via reradiation. Heat delivery via flowing gas establishes a thermocline which maintains high outlet temperature throughout discharge. Gas flows through structured pathways within the array, delivering heat which may be used for processes including calcination, hydrogen electrolysis, steam generation, and thermal power generation and cogeneration. Groups of thermal storage arrays may be controlled and operated at high temperatures without thermal runaway via deep-discharge sequencing. Forecast-based control enables continuous, year-round heat supply using current and advance information of weather and VRE availability. High-voltage DC power conversion and distribution circuitry improves the efficiency of VRE power transfer into the system.

公开(公告)号：US11519304B2

公开(公告)日：2022-12-06

申请号：US17708355

申请日：2022-03-30

申请人： KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

发明人： Mohammad Mozahar Hossain ,  Muflih Arisa Adnan ,  Iswan Pradiptya

IPC分类号： F01K23/10 ,  F02C7/22 ,  F02C3/22 ,  F01K23/18 ,  F01K19/02 ,  F01K13/02 ,  F01K7/16 ,  C10J3/46 ,  C10J3/72 ,  H02K7/18 ,  F02C9/40

摘要： An integrated chemical looping combustion (CLC) electrical power generation system and method for diesel fuel combining four primary units including: gasification of diesel to ensure complete conversion of fuel, chemical looping combustion with supported nickel-based oxygen carrier on alumina, gas turbine-based power generation and steam turbine-based power generation is described. An external combustion and a heat recovery steam generator (HRSG) are employed to maximize the efficiency of a gas turbine generator and steam turbine generator. The integrated CLC system provides a clean and efficient diesel fueled power generation plant with high CO2 recovery.

公开(公告)号：US20220316363A1

公开(公告)日：2022-10-06

申请号：US17626610

申请日：2020-07-22

申请人： Mitsubishi Power, Ltd.

发明人： Takaharu HIROE ,  Kazunari IDE ,  Ryo SASE ,  Yoshito NAGAHAMA ,  Hiroshi ITO ,  Yukihito OKUDA ,  Nobuhiro OSAKI ,  Shoichiro HOSOMI

IPC分类号： F01K13/02 ,  F01D19/00

摘要： Provided is a startup control device for adjusting a startup schedule during startup of a power generation plant. This startup control device is provided with: a determining unit which, for a prescribed physical quantity that restricts the startup of the power generation plant, determines, on the basis of a predicted value of a physical quantity corresponding to the elapsed time from startup when the power generation plant has started up on the basis of a prescribed optimal startup schedule, and an observed value of the physical quantity acquired during the startup of the power generation plant, whether the observed value will exceed the predicted value; a speed adjusting unit which, if the determining unit determines that the observed value will exceed the predicted value, issues an instruction to decelerate the speed of progress of elapsed time from the startup in the optimal startup schedule; and a startup timer which progresses the elapsed time from the startup at a speed based on the instruction.

公开(公告)号：US11428115B2

公开(公告)日：2022-08-30

申请号：US17032645

申请日：2020-09-25

申请人： General Electric Company

发明人： Austin Daniel Frazer ,  Dean Alexander Baker ,  Steven Di Palma ,  Carl Raymond Toth ,  Bruce Frederick Nagel

IPC分类号： F01D19/02 ,  F01K13/02 ,  F01K23/10

摘要： Embodiments of the disclosure provide a method for controlling steam pressure within a turbine component. The method includes calculating a predicted stress on a rotor of the turbine component based on a predicted steam flow with the inlet valve in a minimum load position, a rotor surface temperature, and an inlet steam temperature, and determining whether the predicted stress exceeds a threshold. If the predicted stress exceeds the threshold, the inlet valve adjusts to a warming position. When steam in the discharge passage reaches a target pressure, the exhaust valve partially closes while maintaining the warming position of the inlet valve. If a safety parameter of the turbine component violates a boundary, the exhaust valve partially opens while maintaining the warming position of the inlet valve. When the predicted stress does not exceed the threshold, the inlet valve opens to at least the minimum load position.

公开(公告)号：US20220271563A1

公开(公告)日：2022-08-25

申请号：US17184474

申请日：2021-02-24

申请人： General Electric Company

发明人： Roland Hug

IPC分类号： H02J11/00 ,  H02J3/38 ,  H02J3/32 ,  F01K13/02

摘要： An auxiliary power source is configured to black start a power plant. The auxiliary power source includes a first power source having an auxiliary generator driven by an auxiliary drive. The auxiliary power source also includes a second power source having energy storage. The auxiliary power source is configured to supply power from the first and second power sources to support the black start of the power plant.

公开(公告)号：US11371442B2

公开(公告)日：2022-06-28

申请号：US17174490

申请日：2021-02-12

申请人： MALTA INC.

发明人： Raj Apte ,  Philippe Larochelle

IPC分类号： F02C9/24 ,  F01K13/02 ,  F01K25/10 ,  F01D15/10 ,  F01K3/06 ,  F22B1/00 ,  F01K3/18 ,  F01K7/38 ,  F01K3/02 ,  F01K3/12 ,  F02C1/04 ,  F02C1/10 ,  F02C9/16 ,  F01K25/06

摘要： Systems and methods for variable pressure inventory control of a closed thermodynamic cycle power generation system or energy storage system, such as a reversible Brayton cycle system, with at least a high pressure tank and an intermediate pressure tank are disclosed. Operational parameters of the system such as working fluid pressure, turbine torque, turbine RPM, generator torque, generator RPM, and current, voltage, phase, frequency, and/or quantity of electrical power generated and/or distributed by the generator may be the basis for controlling a quantity of working fluid that circulates through a closed cycle fluid path of the system.

公开(公告)号：US11371382B2

公开(公告)日：2022-06-28

申请号：US16847803

申请日：2020-04-14

申请人： TLV Co., Ltd.

发明人： Noriaki Tsuchiiwa ,  Tomoyuki Shiraishi

IPC分类号： F01D21/00 ,  F01D21/14 ,  F01D25/32 ,  F16T1/48 ,  F01D25/00 ,  F01D19/02 ,  F01K13/02 ,  G01H17/00 ,  G01D1/00 ,  G05B23/02 ,  G01D3/08

摘要： Suitability of an operational state of a steam-using equipment is accurately estimated to allow for early detection of a sign of abnormality in the steam-using equipment. A steam-using facility monitoring system (M) comprised of a steam-using equipment (4) includes a control state detector (D1) that detects a state of a steam controller (1) provided in a steam pipe (2) accompanying the steam-using equipment (4), and an operational state estimating means (S) having a signal input unit (S1) that inputs a detection signal (σi) from the control state detector (D1) and an operational state estimation unit (S2) that estimates the operational state of the steam-using equipment (4) based on one inputted detection signal (σi) or a preset particular combination of detection signals (σi).

公开(公告)号：US11352950B2

公开(公告)日：2022-06-07

申请号：US16445007

申请日：2019-06-18

申请人： The Regents of the University of California

发明人： Sammy Houssainy ,  Mohammad Janbozorgi ,  Walid Ismail ,  Hossein Pirouz Kavehpour

IPC分类号： F02C1/05 ,  F01K7/16 ,  F01K13/00 ,  F01K13/02 ,  F01K17/02 ,  F02C6/18

摘要： An energy storage-combined cooling, heating and power (S-CCHP) system for a building receives energy from a source, for example an intermittent source, and stores the energy in first and second high temperature energy storage (HTES) units. A Brayton cycle using the first HTES unit produces hot and pressurized air that is further heated in the second HTES unit. The heated air drives a turbine to generate electricity for the building. A portion of the compressed air from the Brayton cycle is diverted to a hot water heat exchanger, then to another turbine to produce electricity to the building. The hot water heat exchanger heats water for the building and the other turbine exhaust cools water for building cooling. Heat exchangers are strategically placed to optimize the thermal efficiency of the cycle. In some embodiments the heat transfer fluid is humidified to improve thermal energy transfer properties.