公开(公告)号：US20230012284A1

公开(公告)日：2023-01-12

申请号：US17872489

申请日：2022-07-25

Applicant: MALTA INC.

Inventor： Benjamin R. Bollinger ,  Bao H. Truong

IPC: F01K3/00 ,  F01D15/10 ,  F01K3/18 ,  F01K13/02 ,  F02C6/14

Abstract: A method including: (i) operating a pumped-heat energy storage system (“PHES system”) in a charge mode to convert electricity into stored thermal energy in a hot thermal storage medium (“HTS medium”) by transferring heat from a working fluid to a warm HTS medium, resulting in a hot HTS medium, wherein the PHES system is further operable in a generation mode to convert at least a portion of the stored thermal energy into electricity; and (ii) heating the hot HTS medium with an electric heater above a temperature achievable by transferring heat from the working fluid to the warm HTS medium.

公开(公告)号：US20220372893A1

公开(公告)日：2022-11-24

申请号：US17769761

申请日：2020-10-15

Applicant: MAXEFF TEKNOLOJI ANONIM SIRKETI

Inventor： Murat ISLER

IPC: F01K3/12 ,  F01K3/00 ,  F01K7/16

Abstract: A mechanical energy generation system with an energy recovery, includes at least one heating volume, wherein a liquid fluid stored in the at least one heating volume, at least one heat exchanger element or a heating fluid allows a heat to be changed to the liquid fluid inside the at least one heating volume, at least one outlet line allows the liquid fluid and/or a gas fluid to exit in a pressurized state when the liquid fluid and/or the gas fluid is compressed inside the at least one heating volume when the liquid fluid transitions partially into a gas phase and the at least one outlet line allows resulting a mechanical energy and at least one feed line allows the liquid fluid to be fed into the at least one heating volume, and an embodiment of the mechanical energy generation system comprising at least a second closed volume.

公开(公告)号：US20220186635A1

公开(公告)日：2022-06-16

申请号：US17601948

申请日：2020-04-08

Applicant: Wigner Fizikai Kutatóközpont

Inventor： Zoltán Németh

IPC: F01K23/04 ,  F01K3/00

Abstract: A method for extracting and storing, respectively, energy in the form of concentration gradients wherein a process of extracting energy comprising the steps of feeding stored gaseous working medium into a working volume (2), compressing the working medium in the working volume (2), spraying a dilute solution into the working volume (2) before or during compression, increasing the temperature of the working medium fed in the working volume (2) by compression, evaporating the dilute solution with the working medium of increased temperature, removing heat from the working medium by the evaporating solution, keeping the heat extracted from the working medium in the form of latent heat of the vapor in the working volume (2), further increasing the temperature of the working medium until the partial pressure of the vapor in it approaches the vapor pressure of a solution of higher concentration at a corresponding temperature, spraying a solution of higher concentration of a vapor pressure of up to 60% of the vapor pressure of the dilute solution into the working medium of an expanding and high solvent vapor content, condensing the vapor in the working volume (2) onto solution droplets of the atomized solution and thereby heating the solution droplets, transferring the heat energy of the heated solution droplets to the working medium through contact surfaces of the solution and the working medium, feeding the heat previously conveyed to the dilute solution vapor during the compression back into the working medium plus as much heat as the condensation heat of the warmer vapor to the solution of higher concentration exceeds the heat of evaporation of the dilute solution, using the heat thus fed for performing work by the expansion of the working medium, obtaining the work performed by the working medium, removing the working medium and the solution from the working volume (2) after the gaseous working medium of low relative humidity is getting into a state near to its initial state, separating the working medium and the solution and returning the working medium to a container (7) for working medium and returning the slightly diluted solution of higher concentration to one of a container (11) for solution of higher concentrations and an additional intermediate container (24).
The invention also relates to an apparatus for implementing the method.
The invention can be used in all fields, where electric or mechanical energy should be stored for later use, but especially for leveling out the production and consumption differences on electrical power grids.

公开(公告)号：US11205523B2

公开(公告)日：2021-12-21

申请号：US16741307

申请日：2020-01-13

Applicant: TerraPower, LLC

Inventor： Roderick A Hyde ,  Muriel Y Ishikawa ,  Clarence T Tegreene ,  Joshua C Walter ,  Lowell L Wood, Jr. ,  Victoria Y. H. Wood

IPC: F28D20/00 ,  G21D3/00 ,  F01K3/00 ,  F01K3/18 ,  F01K13/02 ,  F02C1/05 ,  G21D9/00 ,  F28D19/00 ,  F28D17/00

Abstract: A method, system, and apparatus for the thermal storage of nuclear reactor generated energy including diverting a selected portion of energy from a portion of a nuclear reactor system to an auxiliary thermal reservoir and, responsive to a shutdown event, supplying a portion of the diverted selected portion of energy to an energy conversion system of the nuclear reactor system.

公开(公告)号：US20210180861A1

公开(公告)日：2021-06-17

申请号：US16761699

申请日：2018-10-24

Applicant: Siemens Aktiengesellschaft

Inventor： Sebastian Haas

IPC: F25J1/02 ,  F01K3/00 ,  F02C1/02 ,  F01K25/10 ,  F01K13/02

Abstract: An apparatus and method for power generation during regasification, having a tank for a cryogenic fluid, a first pump connected to the tank via a first line, a first heat exchanger connected to the first pump via a second line, and a second heat exchanger connected downstream of the first heat exchanger, and a first turbine connected immediately downstream of the second heat exchanger, wherein a third line branches off from the first turbine and opens into the first heat exchanger, and a fourth line branches off from this first heat exchanger and opens into the second line, wherein a second pump is connected into the fourth line.

公开(公告)号：US10961873B2

公开(公告)日：2021-03-30

申请号：US15718687

申请日：2017-09-28

Applicant: Saudi Arabian Oil Company

Inventor： Mahmoud Bahy Mahmoud Noureldin ,  Hani Mohammed Al Saed ,  Ahmad Saleh Bunaiyan

IPC: F01K13/02 ,  C10G59/00 ,  C10G61/00 ,  C10G63/00 ,  F01K3/00 ,  F01K27/00 ,  C10G53/04 ,  C10G55/00 ,  C10G61/10 ,  C10G57/00 ,  F01D17/14 ,  F01K3/18 ,  H02K7/18 ,  C10G99/00

Abstract: Optimizing power generation from waste heat in large industrial facilities such as petroleum refineries by utilizing a subset of all available hot source streams selected based, in part, on considerations for example, capital cost, ease of operation, economics of scale power generation, a number of ORC machines to be operated, operating conditions of each ORC machine, combinations of them, or other considerations are described. Recognizing that several subsets of hot sources can be identified from among the available hot sources in a large petroleum refinery, subsets of hot sources that are optimized to provide waste heat to one or more ORC machines for power generation are also described. Further, recognizing that the utilization of waste heat from all available hot sources in a mega-site such as a petroleum refinery and aromatics complex is not necessarily or not always the best option, hot source units in petroleum refineries from which waste heat can be consolidated to power the one or more ORC machines are identified.

公开(公告)号：US10724805B2

公开(公告)日：2020-07-28

申请号：US15504456

申请日：2015-03-20

Applicant: Siemens Gamesa Renewable Energy A/S

Inventor： Till Andreas Barmeier ,  Volker Seidel ,  Henrik Stiesdal

IPC: F28D17/00 ,  F01K3/00 ,  F28D20/02 ,  F28D20/00

Abstract: A charging system with a least one high temperature thermal energy exchange system is provided. The high temperature thermal energy exchange system includes at least one heat exchange chamber with chamber boundaries which surround at least one chamber interior of the heat exchange chamber, wherein the chamber boundaries include at least one inlet opening for guiding in an inflow of at least one heat transfer fluid into the chamber interior and at least one outlet opening for guiding out an outflow of the heat transfer fluid out of the chamber interior. At least one heat storage material is arranged in the heat exchange chamber interior such that a heat exchange flow of the heat transfer fluid through the heat exchange chamber interior causes a heat exchange between the heat storage material and the heat transfer fluid.

公开(公告)号：US20200232417A1

公开(公告)日：2020-07-23

申请号：US16743537

申请日：2020-01-15

Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION ,  Sanyu Industries Co., Ltd.

Inventor： Akito Kunimoto ,  Keita Mori

IPC: F02K1/82 ,  F01K13/00 ,  F01D25/24 ,  F01K3/00 ,  G10K11/175

Abstract: A steam turbine 1 includes a turbine body 11 which includes a rotor 5 which is configured to rotate around an axis Ac, and a casing 6 which covers the rotor 5 to form a flow path through which steam flows in an axis Ac direction, together with the rotor 5, a thermal insulation member 12 which is provided to be in contact with an outer surface of the casing 6 in a high-pressure side region 61 out of the high-pressure side region 61 and a low-pressure side region 62 of the steam in the axis Ac direction of the casing 6, and a soundproof cover 13 which covers the low-pressure side region 62 out of the high-pressure side region 61 and the low-pressure side region 62 via a space between the outer surface of the casing 6 and the soundproof cover 13.

公开(公告)号：US10458283B2

公开(公告)日：2019-10-29

申请号：US15440295

申请日：2017-02-23

Applicant: Malta Inc.

Inventor： Robert B. Laughlin ,  Philippe Larochelle ,  Nicholas Cizek

IPC: F01K3/00 ,  F01K3/12 ,  F01K3/18 ,  F24S60/00 ,  F02C1/10 ,  F02C6/14 ,  F28D15/00 ,  F28D20/00 ,  F01K3/20

Abstract: In the present disclosure, an example method is provided. The example method may comprise operating a pumped thermal system in a charging cycle at a first compression ratio, wherein the pumped thermal system comprises a working fluid circulating through, in sequence, a compressor system, a hot side heat exchanger, a turbine system, and a cold side heat exchanger, wherein the working fluid is in thermal contact with a hot thermal storage (“HTS”) medium in the hot side heat exchanger and the working fluid is in thermal contact with a cold thermal storage (“CTS”) medium in the cold side heat exchanger. The example method may also comprise operating the pumped thermal system in a discharging cycle at a second compression ratio different than the first compression ratio.

公开(公告)号：US20190301306A1

公开(公告)日：2019-10-03

申请号：US16315736

申请日：2017-06-26

Applicant: Siemens Aktiengesellschaft

Inventor： Stefan Becker ,  Erich Schmid

IPC: F01K3/00 ,  F01K3/06 ,  F01K23/10 ,  F01K3/14

Abstract: A power plant having a steam circuit which can be supplied, in the region of a heat recovery steam generator, with thermal energy for producing steam, the steam circuit has, in the region of the heat recovery steam generator, a high pressure part, a medium pressure part and a low pressure part. In addition, a heat reservoir which has a phase change material and which is not situated in the region of the heat recovery steam generator is included, wherein, in order to supply the heat reservoir with thermally processed water, a supply line which leads out from the high pressure part or the medium pressure part is included and a discharge line which leads into the medium pressure part, the low pressure part or a steam turbine is included for discharging thermally processed water from the heat reservoir.