公开(公告)号：US20240159168A1

公开(公告)日：2024-05-16

申请号：US18392818

申请日：2023-12-21

Applicant: MALTA INC.

Inventor： Benjamin R. BOLLINGER ,  Sebastian W. FREUND ,  Mert GEVECI

IPC: F01K3/12 ,  F01K3/00 ,  F01K3/06 ,  F01K3/26 ,  F01K13/02 ,  F01K25/00 ,  F02C1/10 ,  F02C6/14

CPC classification number: F01K3/12 ,  F01K3/006 ,  F01K3/06 ,  F01K3/262 ,  F01K13/02 ,  F01K25/00 ,  F02C1/10 ,  F02C6/14 ,  Y02E60/14

Abstract: The present disclosure provides pumped thermal energy storage systems that can be used to store and extract electrical energy. A pumped thermal energy storage system of the present disclosure can store energy by operating as a heat pump or refrigerator, whereby net work input can be used to transfer heat from the cold side to the hot side. A working fluid of the system is capable of efficient heat exchange with heat storage fluids on a hot side of the system and on a cold side of the system. The system can extract energy by operating as a heat engine transferring heat from the hot side to the cold side, which can result in net work output.

公开(公告)号：US20240159167A1

公开(公告)日：2024-05-16

申请号：US18423919

申请日：2024-01-26

Applicant: MALTA INC.

Inventor： Benjamin R. BOLLINGER ,  Bao H. TRUONG

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

CPC classification number: F01K3/004 ,  F01D15/10 ,  F01K3/186 ,  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：US11982228B2

公开(公告)日：2024-05-14

申请号：US17400953

申请日：2021-08-12

Applicant: MALTA INC.

Inventor： Benjamin R. Bollinger ,  Bao Truong ,  Michael Geyer ,  Frederick Redell

IPC: F02C6/14 ,  F01K3/02 ,  F01K3/12 ,  F01K3/18 ,  F01K7/38 ,  F02C1/05 ,  F02C1/10 ,  F28D20/00

CPC classification number: F02C6/14 ,  F01K3/02 ,  F01K3/12 ,  F01K3/18 ,  F01K7/38 ,  F02C1/05 ,  F02C1/10 ,  F05D2220/60 ,  F28D2020/0047 ,  F28D20/0056 ,  F28D2020/0082 ,  Y02E60/14

Abstract: The present disclosure provides pumped heat energy storage systems that can be used to store and/or extract electrical energy. A pumped heat energy storage system of the present disclosure can store energy by operating as a heat pump, whereby net work input can be used to transfer heat from the cold side to the hot side. A working fluid of the system is capable of efficient heat exchange with heat storage fluids on a hot side of the system and on a cold side of the system. Such pumped energy storage systems can be beneficially integrated with steam plants to provided heating to the steam cycle.

公开(公告)号：US11927130B2

公开(公告)日：2024-03-12

申请号：US17952753

申请日：2022-09-26

Applicant: MALTA INC.

Inventor： Raj Apte ,  Philippe Larochelle

IPC: F02C1/04 ,  F02C1/10 ,  F02C6/14 ,  F03G6/04 ,  F03G6/06 ,  H02P9/04

CPC classification number: F02C1/04 ,  F02C1/10 ,  F02C6/14 ,  F03G6/04 ,  F03G6/064 ,  H02P9/04 ,  Y02E10/46 ,  Y02E20/14

Abstract: Disclosed are systems and methods for pump control of a closed thermodynamic cycle system, such as a Brayton cycle. Operational parameters such as working fluid temperature, thermal fluid temperature, stream pressure, and power generation may be the basis for controlling a thermal fluid pump rate.

公开(公告)号：US11885244B2

公开(公告)日：2024-01-30

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

CPC classification number: F01K3/004 ,  F01D15/10 ,  F01K3/186 ,  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：US11761336B2

公开(公告)日：2023-09-19

申请号：US17164302

申请日：2021-02-01

Applicant: MALTA INC.

Inventor： Robert B. Laughlin

IPC: F01D1/02 ,  F01K5/00 ,  F25B9/06 ,  F01K25/00 ,  F25B11/02 ,  F01K3/12 ,  F25B9/00 ,  F02C1/04 ,  F02C6/14 ,  F01L1/02 ,  F01K25/10

CPC classification number: F01D1/02 ,  F01K5/00 ,  F01L1/02 ,  F01K3/12 ,  F01K25/00 ,  F01K25/10 ,  F02C1/04 ,  F02C6/14 ,  F25B9/004 ,  F25B9/06 ,  F25B11/02 ,  Y02E10/46 ,  Y02E60/14

Abstract: Efficient energy storage is provided by using a working fluid flowing in a closed cycle including a ganged compressor and turbine, and capable of efficient heat exchange with heat storage fluids on a hot side of the system and on a cold side of the system. This system can operate as a heat engine by transferring heat from the hot side to the cold side to mechanically drive the turbine. The system can also operate as a refrigerator by mechanically driving the compressor to transfer heat from the cold side to the hot side. Heat exchange between the working fluid of the system and the heat storage fluids occurs in counter-flow heat exchangers. In a preferred approach, molten salt is the hot side heat storage fluid and water is the cold side heat storage fluid.

公开(公告)号：US20230272741A1

公开(公告)日：2023-08-31

申请号：US18108107

申请日：2023-02-10

Applicant: MALTA INC.

Inventor： Benjamin R. Bollinger ,  Bao H. Truong

IPC: F02C1/00 ,  F02C1/05 ,  F02C1/10 ,  F02C6/14 ,  F28D20/00

CPC classification number: F02C1/005 ,  F02C1/007 ,  F02C1/05 ,  F02C1/10 ,  F02C6/14 ,  F28D20/0056 ,  F05D2260/213 ,  F28D2020/0078 ,  F28D2020/0082

Abstract: A system including: (i) a pumped-heat energy storage system (“PHES system”), wherein the PHES system is operable in a charge mode to convert electricity into stored thermal energy in a hot thermal storage (“HTS”) medium; (ii) an electric heater in thermal contact with the hot HTS medium, wherein the electric heater is operable to heat the hot HTS medium above a temperature achievable by transferring heat from a working fluid to a warm HTS medium in a thermodynamic cycle.

公开(公告)号：US20220389839A1

公开(公告)日：2022-12-08

申请号：US17777128

申请日：2020-11-16

Applicant: MALTA INC.

Inventor： Benjamin R. Bollinger ,  Mert GEVECI ,  Bao H. TRUONG ,  Erhan KARACA ,  Sebastian W. FREUND ,  David M. BRANTZEG ,  James J. UNDERWOOD ,  John S. BOWEN ,  Roy T. COLLINS

IPC: F01K3/12 ,  F01K13/02 ,  F01K25/00 ,  F01K3/00 ,  F01K3/06 ,  F01K3/26

Abstract: The present disclosure provides pumped thermal energy storage systems that can be used to store and extract electrical energy. A pumped thermal energy storage system of the present disclosure can store energy by operating as a heat pump or refrigerator, whereby net work input can be used to transfer heat from the cold side to the hot side. A working fluid of the system is capable of efficient heat exchange with heat storage fluids on a hot side of the system and on a cold side of the system. The system can extract energy by operating as a heat engine transferring heat from the hot side to the cold side, which can result in net work output.

公开(公告)号：US11486305B2

公开(公告)日：2022-11-01

申请号：US16991790

申请日：2020-08-12

Applicant: MALTA INC.

Inventor： Benjamin R. Bollinger ,  Bao H. Truong

IPC: F02C6/14 ,  F01D15/10 ,  F01K13/02

Abstract: A method including: (i) receiving a first amount of electricity into a pumped-heat energy storage system (“PHES system”) from a power generation plant supplying a second amount of electricity to an electrical grid; (ii) operating the PHES system in a charge mode, converting at least a portion of the received first amount of electricity to stored thermal energy; and (iii) increasing a power level of the PHES system such that the first amount of electricity that the PHES system receives from the power generation plant is increased such that the second amount of electricity supplied to the electrical grid by the power generation plant is a reduced amount of electricity less than the second amount of electricity.

公开(公告)号：US11480067B2

公开(公告)日：2022-10-25

申请号：US16991813

申请日：2020-08-12

Applicant: MALTA INC.

Inventor： Bao H. Truong

IPC: F01D15/10 ,  F01K27/02 ,  F02C6/14 ,  F28D17/04 ,  F28D20/00

Abstract: A first system herein may include: (i) a pumped-heat energy storage system (“PHES system”), wherein the PHES system is operable in a generation mode to convert at least a portion of stored thermal energy into electricity, wherein the PHES system includes a working fluid path circulating a working fluid through, in sequence, at least a compressor system, a hot-side heat exchanger system, a turbine system, a cold-side heat exchanger system, and back to the compressor system; and (ii) a fluid path directing a first fluid through an intercooler and to a power generation plant, and wherein the working fluid path through the compressor system includes circulating the working fluid through, in sequence, at least a first compressor, the intercooler, and a second compressor, and wherein the intercooler thermally contacts the working fluid with the first fluid, transferring heat from the working fluid to the first fluid.