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公开(公告)号：US11852382B2
公开(公告)日：2023-12-26
申请号：US17531293
申请日：2021-11-19
申请人： KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS , KING ABDULLAH CITY FOR ATOMIC & RENEWABLE ENERGY (K.A.CARE)
CPC分类号： F24S20/40 , F03G4/001 , F03G4/029 , F03G4/037 , F03G4/063 , F03G6/067 , F03G6/068 , F03G6/071 , F24S20/20 , F24S60/30 , F28D2020/0047
摘要： A heating and cooling system powered by renewable energy and assisted with geothermal energy includes a solar cycling unit, a supercritical carbon dioxide (S—CO2) unit, and a refrigerant cycling unit. Solar energy obtained at the solar cycling unit may be used to power the S—CO2 cycling unit. To do so, the solar cycling unit utilizes a solar collector, a thermal energy storage, and a heat exchanger along with a first working fluid which is preferably molten salt or Therminol. Next, the energy generated at the S—CO2 cycling unit, which preferably circulates S—CO2 as a second working fluid, may be used to operate the refrigerant cycling unit. In the refrigerant cycling unit, Tetrafluroethene is preferably used as the third working fluid to produce required cooling effects. Additionally, geothermal heat exchangers may be integrated into the system for use during varying weather conditions.
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公开(公告)号：US11692530B2
公开(公告)日：2023-07-04
申请号：US17643722
申请日：2021-12-10
申请人： David Alan McBay
发明人： David Alan McBay
CPC分类号： F03G7/04 , F03G4/001 , F03G4/029 , F03G4/033 , F03G4/063 , F24T10/10 , F24T10/20 , F24T2010/56 , F28D2020/0047 , Y02E10/10
摘要： The present disclosure relates to techniques for extracting heat energy from geothermal briny fluid. A briny fluid can be extracted from a geothermal production well and delivered to a heat exchanger. The heat exchanger can receive the briny fluid and transfer heat energy from the briny fluid to a molten salt. The molten salt can be pumped to a molten salt storage tank that can serve as energy storage. The briny fluid can be returned to a geothermal source via the production well. The briny fluid can remain in a closed-loop system, apart from the molten salt, from extraction through return to the geothermal production well.
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公开(公告)号：US12066012B2
公开(公告)日：2024-08-20
申请号：US18452722
申请日：2023-08-21
发明人： Mohammad H. Kalaei , Benjamin Lascaud , Thomas J. Wheeler , Gustavo A. Gomez , Julian Ortiz Arango , Harish T. Kumar
CPC分类号： F03G4/063 , E21B43/2406
摘要： The present disclosure generally relates to harvesting geothermal energy from mature and near end-of-life oil and gas reservoirs that have been subjected to secondary oil recovery steam processes like steam-assisted gravity drainage (SAGD), steamflood, etc. The geothermal potential of these mature SAGD reservoirs can be used to generate green electricity thus reducing the greenhouse gas (GHG) footprint of the oil production. Lateral spacing of injectors and producers, with closing of unused members of a well-pair for energy recovery is described.
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公开(公告)号：US12037990B2
公开(公告)日：2024-07-16
申请号：US18337561
申请日：2023-06-20
申请人： Sten Kreuger
发明人： Sten Kreuger
CPC分类号： F03G4/063 , F01D15/08 , F04F13/00 , F28D20/0034
摘要： Energy storage and retrieval systems are disclosed, along with methods of storing and retrieving the energy. The systems include an energy storage system and a trilateral cycle. The energy storage system includes low- and high-temperature energy storage tanks storing one or more energy storage media that exchange heat with a working fluid in both a gradient heat exchanger and a substantially isothermal heat exchanger in the trilateral cycle. Pressure changing devices transport the energy storage medium/media between the storage tanks and through the heat exchangers. The working fluid rejects heat to the energy storage medium and drives a turbine when the system is charging, and the energy storage medium rejects heat to the working fluid when the system is discharging. In some embodiments, the energy storage medium drives a second turbine when the system is discharging.
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公开(公告)号：US20240318638A1
公开(公告)日：2024-09-26
申请号：US18731398
申请日：2024-06-03
申请人： Sten KREUGER
发明人： Sten KREUGER
CPC分类号： F03G4/063 , F01D15/08 , F04F13/00 , F28D20/0034
摘要： Energy storage and retrieval systems are disclosed, along with methods of storing and retrieving the energy. The systems include an energy storage system and a trilateral cycle. The energy storage system includes low- and high-temperature energy storage tanks storing one or more energy storage media that exchange heat with a working fluid in both a gradient heat exchanger and a substantially isothermal heat exchanger in the trilateral cycle. Pressure changing devices transport the energy storage medium/media between the storage tanks and through the heat exchangers. The working fluid rejects heat to the energy storage medium and drives a turbine when the system is charging, and the energy storage medium rejects heat to the working fluid when the system is discharging. In some embodiments, the energy storage medium drives a second turbine when the system is discharging.
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公开(公告)号：US20240240588A1
公开(公告)日：2024-07-18
申请号：US18525484
申请日：2023-11-30
申请人： EarthEn Energy Inc.
CPC分类号： F02C6/04 , F03G4/063 , F05D2220/76 , F05D2260/42
摘要： Systems and methods for carbon dioxide-based energy storage and power generation are described. An example system is presented that includes a compressor operable to receive supercritical carbon dioxide (sCO2) and produce compressed sCO2, one or more thermal energy storage (TES) units operable to heat the compressed sCO2, a turbine operable to receive the heated and compressed sCO2 and output an sCO2 exhaust, and at least one of a generator or a propeller coupled to the turbine, where the generator is operable to produce electricity and the propeller is operable to produce thrust.
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公开(公告)号：US20240084786A1
公开(公告)日：2024-03-14
申请号：US18337561
申请日：2023-06-20
申请人： Sten KREUGER
发明人： Sten KREUGER
CPC分类号： F03G4/063 , F01D15/08 , F04F13/00 , F28D20/0034
摘要： Energy storage and retrieval systems are disclosed, along with methods of storing and retrieving the energy. The systems include an energy storage system and a trilateral cycle. The energy storage system includes low- and high-temperature energy storage tanks storing one or more energy storage media that exchange heat with a working fluid in both a gradient heat exchanger and a substantially isothermal heat exchanger in the trilateral cycle. Pressure changing devices transport the energy storage medium/media between the storage tanks and through the heat exchangers. The working fluid rejects heat to the energy storage medium and drives a turbine when the system is charging, and the energy storage medium rejects heat to the working fluid when the system is discharging. In some embodiments, the energy storage medium drives a second turbine when the system is discharging.
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公开(公告)号：US20240068450A1
公开(公告)日：2024-02-29
申请号：US18452722
申请日：2023-08-21
发明人： Mohammad H. KALAEI , Benjamin LASCAUD , Thomas J. WHEELER , Gustavo A. GOMEZ , Julian Ortiz ARANGO , Harish T. KUMAR
CPC分类号： F03G4/063 , E21B43/2406
摘要： The present disclosure generally relates to harvesting geothermal energy from mature and near end-of-life oil and gas reservoirs that have been subjected to secondary oil recovery steam processes like steam-assisted gravity drainage (SAGD), steamflood, etc. The geothermal potential of these mature SAGD reservoirs can be used to generate green electricity thus reducing the greenhouse gas (GHG) footprint of the oil production. Lateral spacing of injectors and producers, with closing of unused members of a well-pair for energy recovery is described.
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