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公开(公告)号：US12173643B2
公开(公告)日：2024-12-24
申请号：US18108107
申请日：2023-02-10
Applicant: MALTA INC.
Inventor： Benjamin R. Bollinger , Bao H. Truong
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.
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公开(公告)号：US12123347B2
公开(公告)日：2024-10-22
申请号：US18051253
申请日：2022-10-31
Applicant: MALTA INC.
Inventor： Benjamin R. Bollinger , Bao H. Truong
Abstract: A method including: operating a pumped-heat energy storage (“PHES”) system in a generation mode to generate electricity; and responsive, at least in part, to a determination that a power generation plant will reduce supply of electricity to an electrical grid by a reduction amount of electricity, changing modes of the PHES system from the generation mode to operate in a charge mode. Operating in the charge mode can include receiving a charge amount of electricity, at least equal to the reduction amount of electricity, into the PHES system from the power generation plant and converting at least a portion of the charge amount of electricity to stored thermal energy.
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公开(公告)号：US12123327B2
公开(公告)日：2024-10-22
申请号：US18108086
申请日：2023-02-10
Applicant: MALTA INC.
Inventor： Mert Geveci , Benjamin R. Bollinger , Samar J. Shah
Abstract: The present disclosure provides pumped heat energy storage systems that can be used to store and 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. The system can also 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. Shared powertrains and reversible powertrains are disclosed to circulate the working fluid.
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公开(公告)号：US20240209774A1
公开(公告)日：2024-06-27
申请号：US18601194
申请日：2024-03-11
Applicant: MALTA INC.
Inventor： Raj APTE , Philippe LAROCHELLE
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.
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公开(公告)号：US12012902B2
公开(公告)日：2024-06-18
申请号：US17850510
申请日：2022-06-27
Applicant: MALTA INC.
Inventor： Raj Apte , Philippe Larochelle
IPC: F02C9/24 , F01D15/10 , F01K3/02 , F01K3/06 , F01K3/12 , F01K3/18 , F01K7/38 , F01K13/02 , F01K25/10 , F02C1/04 , F02C1/10 , F02C9/16 , F22B1/00 , F01K25/06
CPC classification number: F02C9/24 , F01D15/10 , F01K3/02 , F01K3/06 , F01K3/12 , F01K3/18 , F01K7/38 , F01K13/02 , F01K25/103 , F02C1/04 , F02C1/10 , F02C1/105 , F02C9/16 , F22B1/006 , F01K25/06 , Y02E20/16
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US20240117751A1
公开(公告)日：2024-04-11
申请号：US18543542
申请日：2023-12-18
Applicant: MALTA INC.
Inventor： Bao H. TRUONG
CPC classification number: F01D15/10 , F01K27/02 , F02C6/14 , F28D17/04 , F28D20/00 , F05D2260/213 , F28D2020/0026 , F28D2020/0069 , F28D2020/0078 , F28D2020/0082
Abstract: A system including: 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, wherein the PHES system comprises 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 hot fluid from a heat source external to the PHES system through a reheater, wherein a portion of the working fluid path through the turbine system comprises circulating the working fluid through a first turbine, the reheater, and a second turbine, and wherein the working fluid thermally contacts the hot fluid in the reheater, thereby transferring heat from the hot fluid to the working fluid.
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公开(公告)号：US20240102402A1
公开(公告)日：2024-03-28
申请号：US18535495
申请日：2023-12-11
Applicant: MALTA INC.
Inventor： Bao H. TRUONG
CPC classification number: F01D15/10 , F01K27/02 , F02C6/14 , F28D17/04 , F28D20/00 , F05D2260/213 , F28D2020/0026 , F28D2020/0069 , F28D2020/0078 , F28D2020/0082
Abstract: In accordance with the present disclosure, a pumped-heat energy storage (“PHES”) system operable in charge and power generation modes can include 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 an intercooler system for providing cooling to the compressor system, the intercooling system including at least one intercooler heat exchanger arranged for transferring heat out from working fluid amid different stages of the compressor system to a power plant. A fluid path can be arranged for providing a power plant fluid to receive heat from the intercooler system. The fluid path can be arranged to pass the power plant fluid to the intercooler system to receive heat and to the power plant for use in heating in power generation.
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公开(公告)号：US11840932B1
公开(公告)日：2023-12-12
申请号：US17971196
申请日：2022-10-21
Applicant: MALTA INC.
Inventor： Bao H. Truong
CPC classification number: F01D15/10 , F01K27/02 , F02C6/14 , F28D17/04 , F28D20/00 , F05D2260/213 , F28D2020/0026 , F28D2020/0069 , F28D2020/0078 , F28D2020/0082
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.
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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.
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公开(公告)号：US20230296049A1
公开(公告)日：2023-09-21
申请号：US18322278
申请日：2023-05-23
Applicant: MALTA INC.
Inventor： Raj B. APTE , Philippe LAROCHELLE , Julian GREEN
CPC classification number: F02C6/16 , F01K3/12 , F01K7/16 , F01K23/10 , F02C1/10 , H02K7/1823 , Y02E20/14 , Y02E20/16 , Y02E60/16
Abstract: A power generation system comprising a shared hot side thermal store, a shared cold side thermal store, a plurality of power subunits, and an electrical bus is disclosed. Each of the power subunits may connected or isolated from the shared hot side thermal store and/or the shared cold side thermal store.
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