公开(公告)号：US11156385B2

公开(公告)日：2021-10-26

申请号：US16289017

申请日：2019-02-28

Applicant: Malta Inc.

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

IPC: F01K13/02 ,  F02C1/10 ,  F02C6/14 ,  F01K3/12 ,  F28D15/00 ,  F28D20/00 ,  F01K3/00 ,  F01K3/18 ,  F01K3/20 ,  F24S60/10

Abstract: The present disclosure provides pumped thermal energy storage systems that can be used to store 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. Systems of the present disclosure can employ solar heating for improved storage efficiency.

公开(公告)号：US10907513B2

公开(公告)日：2021-02-02

申请号：US16111151

申请日：2018-08-23

Applicant: Malta Inc.

Inventor： Robert B. Laughlin

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

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：US10443452B2

公开(公告)日：2019-10-15

申请号：US15440289

申请日：2017-02-23

Applicant: Malta Inc.

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

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

Abstract: The present disclosure provides pumped thermal energy storage systems that can be used to store 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. Systems of the present disclosure can employ solar heating for improved storage efficiency.

公开(公告)号：US10288357B2

公开(公告)日：2019-05-14

申请号：US15440308

申请日：2017-02-23

Applicant: Malta Inc.

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

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

Abstract: The present disclosure provides pumped thermal energy storage systems that can be used to store 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. Systems of the present disclosure can employ solar heating for improved storage efficiency.

公开(公告)号：US20230383998A1

公开(公告)日：2023-11-30

申请号：US18230386

申请日：2023-08-04

Applicant: MALTA INC.

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

IPC: F24S60/10 ,  F01K13/02 ,  F02C1/10 ,  F02C6/14 ,  F01K3/12 ,  F28D15/00 ,  F28D20/00 ,  F01K3/00 ,  F01K3/18 ,  F01K3/20

CPC classification number: F24S60/10 ,  F01K13/02 ,  F02C1/10 ,  F02C6/14 ,  F01K3/12 ,  F28D15/00 ,  F28D20/00 ,  F01K3/00 ,  F01K3/185 ,  F01K3/20 ,  Y02E60/14 ,  F05D2250/90 ,  Y02E20/14 ,  Y02E20/16 ,  Y02E60/16

Abstract: The present disclosure provides pumped thermal energy storage systems that can be used to store electrical energy. A pumped thermal energy storage system of the present disclosure can store energy by operating as a heat pump or refrigerator, whereby network 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 network output. Systems of the present disclosure can employ solar heating for improved storage efficiency.

公开(公告)号：US20190195571A1

公开(公告)日：2019-06-27

申请号：US16289017

申请日：2019-02-28

Applicant: Malta Inc.

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

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

CPC classification number: F01K3/00 ,  F01K3/12 ,  F01K3/185 ,  F01K3/20 ,  F01K13/02 ,  F02C1/10 ,  F02C6/14 ,  F05D2250/90 ,  F24S60/00 ,  F28D15/00 ,  F28D20/00 ,  Y02E20/14 ,  Y02E20/16 ,  Y02E60/14

Abstract: The present disclosure provides pumped thermal energy storage systems that can be used to store 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. Systems of the present disclosure can employ solar heating for improved storage efficiency.

公开(公告)号：US11754319B2

公开(公告)日：2023-09-12

申请号：US17509341

申请日：2021-10-25

Applicant: MALTA INC.

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

IPC: F24S60/10 ,  F01K13/02 ,  F02C1/10 ,  F02C6/14 ,  F01K3/12 ,  F28D15/00 ,  F28D20/00 ,  F01K3/00 ,  F01K3/18 ,  F01K3/20

CPC classification number: F24S60/10 ,  F01K3/00 ,  F01K3/12 ,  F01K3/185 ,  F01K3/20 ,  F01K13/02 ,  F02C1/10 ,  F02C6/14 ,  F28D15/00 ,  F28D20/00 ,  F05D2250/90 ,  Y02E20/14 ,  Y02E20/16 ,  Y02E60/14 ,  Y02E60/16

Abstract: The present disclosure provides pumped thermal energy storage systems that can be used to store electrical energy. A pumped thermal energy storage system of the present disclosure can store energy by operating as a heat pump or refrigerator, whereby network 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 network output. Systems of the present disclosure can employ solar heating for improved storage efficiency.

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：US20190153901A9

公开(公告)日：2019-05-23

申请号：US15440295

申请日：2017-02-23

Applicant: Malta Inc.

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

IPC: F01K3/00 ,  F28D20/00

Abstract: The present disclosure provides pumped thermal energy storage systems that can be used to store 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. Systems of the present disclosure can employ solar heating for improved storage efficiency.

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.