公开(公告)号：US11674439B2

公开(公告)日：2023-06-13

申请号：US17385146

申请日：2021-07-26

Applicant: PINTAIL POWER LLC

Inventor： William M. Conlon

IPC: F02C6/00 ,  F02C6/16 ,  F02C7/08 ,  F01K23/18 ,  F01K23/10 ,  F01K25/10

CPC classification number: F02C6/16 ,  F01K23/10 ,  F01K23/18 ,  F01K25/10 ,  F02C7/08 ,  F05D2220/32 ,  F05D2220/60 ,  F05D2220/72 ,  Y02E20/16 ,  Y02E60/16

Abstract: Apparatus, systems, and methods store energy by liquefying a gas such as air, for example, and then recover the energy by regasifying the liquid and combusting or otherwise reacting the gas with a fuel to drive a heat engine. The process of liquefying the gas may be powered with electric power from the grid, for example, and the heat engine may be used to generate electricity. Hence, in effect these apparatus, systems, and methods may provide for storing electric power from the grid and then subsequently delivering it back to the grid.

公开(公告)号：US11661867B2

公开(公告)日：2023-05-30

申请号：US16775559

申请日：2020-01-29

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Hideyuki Uechi ,  Eisaku Ito

IPC: F02C6/18 ,  F01K23/10

CPC classification number: F01K23/106 ,  F02C6/18 ,  F05D2220/72 ,  F05D2220/76 ,  F05D2260/2322 ,  F05D2260/85 ,  F05D2270/303

Abstract: A gas turbine exhaust heat recovery plant includes a plurality of gas turbine exhaust heat recovery devices that have a gas turbine and an exhaust heat recovery boiler for generating steam by recovering exhaust heat of the gas turbine, a steam-utilizing facility that utilizes the steam generated by the exhaust heat recovery boiler, and an inter-device heat medium supply unit capable of supplying a portion of water heated or a portion of the steam generated by at least one of the gas turbine exhaust heat recovery devices out of the plurality of gas turbine exhaust heat recovery devices, to the other gas turbine exhaust heat recovery device.

公开(公告)号：US11643949B1

公开(公告)日：2023-05-09

申请号：US17456823

申请日：2021-11-29

Applicant: Trane International Inc.

Inventor： Michael Sean Day

IPC: F01K7/16 ,  F17C5/06 ,  F01K15/00 ,  F02C1/02 ,  F02C6/14 ,  F01K23/10 ,  F01K23/06

CPC classification number: F01K7/16 ,  F01K15/00 ,  F01K23/065 ,  F01K23/10 ,  F02C1/02 ,  F02C6/14 ,  F17C5/06 ,  F17C2265/07 ,  F17C2270/0581

Abstract: An energy generation system for converting combustible fluid from a nontraditional combustible fluid source to useable energy. The energy generation system including a fluid storage system including a compressor and at least one storage tank, the compressor configured to pressurize a combustible fluid from a combustible fluid source for storage in the one or more storage tanks; and an energy recovery system configured to receive the combustible fluid from the at least one storage tank, the energy recovery system including: a turboexpander configured to depressurize the combustible fluid received from the at least one storage tank; a motor-generator configured to input the combustible fluid as depressurized by the turboexpander, and generate electrical energy from the combustible fluid; and an organic Rankine cycle (ORC) system configured to generate electrical energy based on a temperature differential between the combustible fluid input to the motor-generator and a waste heat produced by the motor-generator.

公开(公告)号：US20230112330A1

公开(公告)日：2023-04-13

申请号：US17909489

申请日：2020-03-06

Applicant: Siemens Energy Global GmbH & Co. KG

Inventor： Alexander Broy ,  Gerald Franz Giering ,  Alexander Rentschler

IPC: F01K23/10 ,  C25B1/04 ,  C25B15/08 ,  F01K13/02 ,  F01K25/00

Abstract: A system includes a combustion power plant for generating power and an electrolysis unit for producing hydrogen. The combustion power plant has a combustion chamber for combustion of a fuel and an offgas conduit for leading off hot offgases formed in the combustion of the fuel. The offgas conduit is thermally coupled to the electrolysis unit. A method for operating the system includes burning the fuel in the combustion power plant, forming the hot offgases in the combustion of the fuel, removing the hot offgases through the offgas conduit, feeding the thermal energy of the hot offgases from the offgas conduit to the electrolysis unit, and producing hydrogen in the electrolysis unit by using the thermal energy from the hot offgases.

公开(公告)号：US11619145B2

公开(公告)日：2023-04-04

申请号：US17313406

申请日：2021-05-06

Applicant: General Electric Company

Inventor： Karl Dean Minto ,  John Rogers Huey ,  Quentin Lorron

IPC: F01K23/10 ,  F01D19/00 ,  F01K13/02 ,  F01K23/16 ,  F02C6/18

Abstract: A method for block loading an electrical grid with a combined cycle power plant (CCPP) includes operating a gas turbine system of the CCPP in an islanding mode with a steam turbine system of the CCPP off line with turning gear rotating only; loading the steam turbine system accordingly to temperature matching conditions of the steam turbine system, the loading of the steam turbine system includes controlling gas turbine exhaust fed to the steam turbine system and the gas turbine exhaust temperature heats the steam turbine system and to meet temperature matching conditions of the steam turbine system; wherein controlling gas turbine exhaust includes controlling fuel flow and air flow to the gas turbine system; and operating at least one of the gas turbine system and steam turbine system to block load the electrical grid from a load on at least one of gas turbine system and steam turbine system.

公开(公告)号：US11608758B2

公开(公告)日：2023-03-21

申请号：US16527649

申请日：2019-07-31

Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA

Inventor： Kazuhiko Tanimura ,  Hikaru Sano ,  Satoshi Nakayama ,  Naoki Miyake ,  Akihisa Oka

IPC: F01K25/00 ,  F01K23/10

Abstract: A hydrogen/oxygen stoichiometric combustion turbine system includes: a high-pressure steam turbine (2); a low-pressure steam turbine (3); and a heater (5) disposed between the high-pressure and low-pressure steam turbines. The heater (5) has a combustion portion (53) in which stoichiometric combustion of hydrogen and oxygen is caused, and a mixing portion (55) configured to mix discharged steam (S4) from the high-pressure steam turbine (2) with combustion gas (R) from the combustion portion (53) and to supply the obtained product to the low-pressure steam turbine (3).

公开(公告)号：US11598261B2

公开(公告)日：2023-03-07

申请号：US17601788

申请日：2021-04-27

Applicant: JUST IN TIME ENERGY CO.

Inventor： James E. Berry

IPC: F02C1/00 ,  F01K7/12 ,  F01K7/32 ,  F02M31/04 ,  F01K25/08 ,  F01K23/10 ,  F01K23/06

Abstract: To produce power using the cold in a stored fluid in a cold condensed state (for example, LNG or liquid air), the fluid is initially pumped, heated, and expanded to generate a first amount of power and form initially expanded fluid, which is then re-condensed, re-pumped, re-heated, and re-expanded to generate a second amount of power, where the initially expanded fluid is re-condensed against the pumped fluid from the initial pumping. The technique can be used to store excess energy in the cold condensed fluid using excess energy generation capacity for subsequent recovery when energy is either deficient or otherwise more expense to generate.

公开(公告)号：US11578623B2

公开(公告)日：2023-02-14

申请号：US17367050

申请日：2021-07-02

Applicant: William M. Conlon

Inventor： William M. Conlon

IPC: F01K19/00 ,  F01K11/00 ,  F01K13/00 ,  F01K25/06 ,  F01K9/00 ,  F01K7/02 ,  F01K23/10 ,  F02C6/02 ,  F02C6/18

Abstract: In a cryogenic combined cycle power plant electric power drives a cryogenic refrigerator to store energy by cooling air to a liquid state for storage within tanks, followed by subsequent release of the stored energy by first pressurizing the liquid air, then regasifying the liquid air and raising the temperature of the regasified air at least in part with heat exhausted from a combustion turbine, and then expanding the heated regasified air through a hot gas expander to generate power. The expanded regasified air exhausted from the expander may be used to cool and make denser the inlet air to the combustion turbine. The combustion turbine exhaust gases may be used to drive an organic Rankine bottoming cycle. An alternative source of heat such as thermal storage, for example, may be used in place of or in addition to the combustion turbine.

公开(公告)号：US11530628B2

公开(公告)日：2022-12-20

申请号：US16967244

申请日：2019-02-04

Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.

Inventor： Akira Hirota ,  Kanji Ishikawa

IPC: F01K23/10 ,  B01D53/94 ,  F01N3/10 ,  F02C7/00

Abstract: A denitration device comprising a duct (22) that leads and distributes exhaust gas from a turbine (56) of a gas turbine (50) including a compressor (52) and the turbine (56), an ammonia injection grid (24) that sprays, into the duct (22), an mixed gas in which ammonia gas and dilution air are mixed with each other, and a denitration catalyst (26) that is installed on a downstream side of flow of the exhaust gas of the ammonia injection grid in the duct (22), and there is provided an air bleeding line (76) that is connected to a low compression portion of the compressor (52) of the gas turbine (50) and supplies air bled of the compressor (52) into the ammonia injection grid (24) as the dilution air.

公开(公告)号：US20220389843A1

公开(公告)日：2022-12-08

申请号：US17782648

申请日：2020-10-22

Applicant: Siemens Energy Global GmbH & Co. KG

Inventor： Christian Keune ,  Detlef Bock

IPC: F01K23/10 ,  F22B37/56

Abstract: A method for flushing a heat recovery steam generator in a power plant having a gas turbine, having a compressor, a combustion chamber and a turbine with a rotor, and having a generator coupled to the gas turbine and a start-up converter to convert from an alternating current of random frequency into an alternating current of a specified frequency. The start-up converter is connected to an output of the generator at which the alternating current of random frequency is applied. Wherein, when the gas turbine is run down, the rotor is cushioned with the help of the start-up converter at a boiler flushing speed and the heat recovery steam generator is further flushed until the specifications for flushing the waste heat steam generator are complied with.