WATER WHEEL, HYDRAULIC POWER GENERATION DEVICE, AND HYDRAULIC POWER GENERATION SYSTEM

    公开(公告)号:US20250012247A1

    公开(公告)日:2025-01-09

    申请号:US18896148

    申请日:2024-09-25

    Abstract: A water wheel includes a casing to carry a fluid flow through an inside of the casing, a pipe extending in the inside of the casing, a rotor unit having a shaft to be inserted in the inside of the casing, and a support. The shaft is directed toward the pipe. The rotor unit is detachably attached to the casing from outside. The support supports the rotor unit at a predetermined position relative to the pipe when the rotor unit is attached to the casing. A hydraulic power generation device includes the water wheel and a generator driven by the water wheel. A hydraulic power generation system includes the hydraulic power generation device and a flow path with the hydraulic power generation employed in the flow path.

    MEMBRANE-BASED ENERGY HARVESTING THROUGH SALINITY GRADIENT OF AVAILABLE UPSTREAM WATER RESOURCES

    公开(公告)号:US20240418141A1

    公开(公告)日:2024-12-19

    申请号:US18740281

    申请日:2024-06-11

    Abstract: A method for harvesting energy through pressure retarded osmosis includes identifying and pumping both a low salinity feed stream and a high salinity feed stream from upstream water sources to opposite ends of a semi-permeable membrane housing where the low salinity feed stream permeates through the semi-permeable membrane to the high salinity feed stream to pressurize and dilute it. The diluted stream rotates a turbine to generate electricity and produce a depressurized mid-salinity fluid. A system for harvesting energy through pressure retarded osmosis has a first and second upstream water source pumped through low and high salinity feed lines to opposite ends of a semi-permeable membrane housing including a container, a semi-permeable membrane, a low salinity side of the housing, and a high salinity housing. The system also has a low salinity exit line and a pressurized mid-salinity exit line exiting opposite ends of the semi-permeable membrane housing, a turbine, a generator coupled to the turbine, and a depressurized mid-salinity exit line downstream of the turbine.

    Large tidal current energy generating device and assembly platform thereof

    公开(公告)号:US12163500B2

    公开(公告)日:2024-12-10

    申请号:US18009934

    申请日:2020-06-10

    Inventor: Dong Lin Fuwei Zhu

    Abstract: The present invention provides a large tidal current energy generating device and an assembly platform (1) thereof. At least one horizontal axis hydro-generator (2) is installed in the assembly platform (1). The assembly platform (1) includes at least four fixed piles (11), at least two force-bearing blocks (12), at least two force-bearing supports (13), and supports (14). The at least four fixed piles are connected through the supports to form an installation space (15). The at least one horizontal axis hydro-generator is installed inside the installation space. One end of each fixed pile is driven to be fixed to a seabed and the other end extends to be above a water surface. The at least four fixed piles are arranged in left and right columns relative to a water flow direction, and each column of the fixed piles is arranged along the water flow direction. The at least two force-bearing blocks are fixed to the corresponding fixed piles or supports and located on left and right sides of the horizontal axis hydro-generator below the water surface, respectively. Ends of the at least two force-bearing supports are respectively mounted on the left and right sides of the horizontal axis hydro-generator relative to the water flow direction and the other ends are respectively against the corresponding force-bearing blocks.

    SUBSEA DESALINATION SYSTEMS AND METHODS USING FLUID DISPLACEMENT

    公开(公告)号:US20230391640A1

    公开(公告)日:2023-12-07

    申请号:US18236229

    申请日:2023-08-21

    Inventor: ETHAN NOVEK

    CPC classification number: C02F1/441 F03B13/06 F03B13/00 H02J15/003

    Abstract: The present application pertains to systems and methods for desalination. In one embodiment the system employs a first storage reservoir configured to be near the surface of a body of water and configured to store a low density fluid. A second storage reservoir is configured to be located below the surface of the body of water. A desalination system is operably connected to the second reservoir. Desalinated water is produced by allowing desalination permeate to displace low density fluid in the second reservoir and transfer the low density fluid from the second reservoir to the first reservoir. Desalinated water is exported by transferring low density fluid from the first reservoir into the second reservoir to displace desalinated water from the second reservoir into a water export pipeline.

    WIND, WAVE, AND WATER POWER GENERATION SYSTEM

    公开(公告)号:US20230272776A1

    公开(公告)日:2023-08-31

    申请号:US18314666

    申请日:2023-05-09

    Abstract: A power generation system includes a flotation assembly configured to float in water and a first harnessing assembly coupled to the flotation assembly and disposed in an airflow above the water. The first harnessing assembly is configured to harness the airflow to create a first rotational energy. The system also includes a second harnessing assembly coupled to the flotation assembly and disposed in the water. The second rotational assembly is configured to harness movement of the water to create a second rotational energy. The flotation assembly also includes a generating module to convert the first and second rotational energies into electrical energy.

    Power take-off apparatus for a wave energy converter and wave energy converter comprising the same

    公开(公告)号:US11725621B2

    公开(公告)日:2023-08-15

    申请号:US17800919

    申请日:2021-02-19

    Applicant: Novige AB

    CPC classification number: F03B13/1875 E02B9/08 F03B13/145 F05B2260/87

    Abstract: A power take-off apparatus for a wave energy converter of point absorber type, includes a cylinder attachable to a floating device, a piston that reciprocates inside the cylinder and has a piston rod attachable to a mooring, at least one penstock with a first end in communication with a second end of the cylinder through a first opening, and a second end having a second opening, and a housing above a cylinder first end. The housing communicates with the penstock through the second opening and with the cylinder through a third opening in the housing such that the cylinder, penstock and the housing form a closed loop for a fluid in the power take-off apparatus. A water turbine is arranged inside the housing so that working fluid entering the housing from the at least one penstock causes rotation of the water turbine to drive an electrical generator connected thereto.

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