GB2463313A - Horizontal rotor for marine current energy extraction - Google Patents

Horizontal rotor for marine current energy extraction Download PDF

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Publication number
GB2463313A
GB2463313A GB0816605A GB0816605A GB2463313A GB 2463313 A GB2463313 A GB 2463313A GB 0816605 A GB0816605 A GB 0816605A GB 0816605 A GB0816605 A GB 0816605A GB 2463313 A GB2463313 A GB 2463313A
Authority
GB
United Kingdom
Prior art keywords
rotor
energy
tourque
hydraulic fluid
current energy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB0816605A
Other versions
GB0816605D0 (en
Inventor
Guillaume Stewart-Jones
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Questor Corp
Original Assignee
Questor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Questor Corp filed Critical Questor Corp
Priority to GB0816605A priority Critical patent/GB2463313A/en
Publication of GB0816605D0 publication Critical patent/GB0816605D0/en
Publication of GB2463313A publication Critical patent/GB2463313A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/26Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy
    • F03B13/264Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy using the horizontal flow of water resulting from tide movement
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00Other machines or engines
    • F03B17/06Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • F03B17/062Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction
    • F03B17/063Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction the flow engaging parts having no movement relative to the rotor during its rotation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B3/00Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/16Stators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00Components
    • F05B2240/10Stators
    • F05B2240/12Fluid guiding means, e.g. vanes
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/30Energy from the sea, e.g. using wave energy or salinity gradient

Abstract

A long horizontal axis rotor is used to extract energy from ocean or river currents. Inlet and exit funnels may be provided to guide flow over the rotor, and there may be a mesh to prevent debris or large creatures accessing the rotor. Two or more contra-rotating rotors may be linked in series (figure 4). The rotor may drive a hydraulic pump to transfer energy generated to shore or to a surface platform.

Description

Oceanic Current Energy Extraction System Switching from fossil fuel consumption to clean energy is a vital step in the struggle to contain C02 emissions and mitigate the effects of global warming. Electricity generation comprises approximately 1/3 of the total fossil fuel emissions, mainly from coal-fired power stations. There are numerous natural resources that can be tapped into to derive energy that can be converted to electricity. The demand for electricity is extremely high, and growing, prompting urgent requirement to find alternative clean energy technologies that are highly economically viable and environmentally acceptable.
The oceans have many very large-scale currents that move large bodies of water in a directional flow consistently. Here, this invention makes use of the oceanic current energy to generate electricity. Equally the technologies here can be applied to sea currents, tidal currents or river currents. Since the scale of the ocean is so large, the scale of the devices that extract energy can also be extremely large-scale, and thus generate huge amounts of electrical power.
This invention describes a novel ocean-orientated rotor system that funnels the flowing water onto rotor blades that collect the kinetic energy into an axis which then transfers that force via hydraulic fluids to the surface (platform) or shore for driving electricity generating dynamos. The rotor should be positioned horizontally in the water, and can be several hundred or thousand meters long. There are several key features of the invention, as described below.
The Funnel, figures 1 and 2. This comprises of a ramp from the ocean bed that positions the rotor into an appropriate height that the funnel captures fast flowing water and concentrates the pressure to the rotor. The upper plate of the funnel acts to collect the flowing water and apply it at pressure through the rotor by working in conjunction with the lower ramp plate. Furthermore there are side plates that help contain the water at the ends of the device. There is also a plate that is positioned horizontally above the rotor, and could follow the curvature of the rotor to help guide the flowing water more efficiently through the turbine blades. The funnel mouth can either be comprised of flat plates, or preferably parabolic plates as shown in figure lb. The funnel would have a mesh or netting to protect from large organisms or debris entering funnel and accessing the rotor.
The Rotor, figure 1, figure 3. This is a long rotor positioned in the ocean that collects the kinetic energy of the flowing water as funnelled into a turning motion of the axle.
Because of its great length, but the relatively slow moving water, the central axis gathers a great amount of tourque, albeit at low rotational frequency. Essentially, the motion of the water energy is collected along the length of the axis and can be accessed in a condensed form at the ends where the hydraulic pumps or dynamos are positioned.
Terminal hydraulic pumps: These are positioned at the end of the axle so as to harvest the tourque energy and transfer it via hydraulic fluid piping to the shore or an offshore platform for conversion into electrical energy. Therefore a closed hydraulic circuit would be set up from the rotor to the electricity plant on shore. At the electricity plant, the power carried in the hydraulic fluid would be used to drive dynamos. Due to the low velocity of the hydraulic fluid, yet it's great pressure, the loss of energy in transporting the fluid along the pipeline would be relatively small, and the use of hydraulics to transfer the energy avoids the risks associated with electricity generation at depth in the water.
The scale of the rotor can be up to lOOm in diameter (each blade measuring 50m wide) and several kilometres long. In this way, a large body of water can be processed and energy harvested at a massive scale with few operating units, and economy of scale.
These devices can be assembled at a port or on a ship at the site of installation, and assembled off-shore.
Several rotors can be adjoined to harvest more efficiently the energy from funnelled water (figure 4). This would entail housing more than one rotor in a shaped housing to direct the flow of water through subsequent rotor blades, appropriately positioned. The outflow from one rotor would pass through another rotor, and due to the high pressures of the water generated by the funnel, several rotors can be rotated synchronously to maxim ise the energy output from one site. Futhermore, since the rotation of the second, fourth, etc rotor would be opposite to the first, third etc. rotors, the oppositely rotating pairs of dynamos or hydraulic motors can be structurally paired up and fixed to each other so the net tourque on the foundations to the bed of the unit is zero as generated from the device.
The shape of the blades can be straight or curved as shown in the diagrams. Curved blades may provide the advantage of being more efficient at capturing the energy than straight blades. Furthermore a rear funnel may be placed on the device to generate suction, as like lift on an aerial wing, further enhancing the force of water flow through the device. End.

Claims (3)

  1. Oceanic Current Energy Extraction System Claims: 1) Any long horizontal rotor structure used for capturing oceanic current energy.
  2. 2) The structure of a current-capturing funnel, shaped and positioned to flow high-pressure water onto the top half of the rotor blades.
  3. 3) A housing device for the horizontal rotor to optimise the transfer of flowing water onto the rotor blades 4) The positioning and housing of two or more rotors in series in a housing that passes the flow from one rotor to another, optimising the capture of energy by multiple rotors.5) Linking the dynamos physically in pairs, and due to the opposite operating direction, the net tourque applied to any supporting structure becomes zero.6) The use of associate hydraulic units to convert the tourque energy from the rotor axle to hydraulic fluid motion.7) The transfer of energy from the device by hydraulic fluid piping to an on-shore or platform based electricity-generating plant.1) A rear funnel that generates suction and assists in the generating of water flow through the central rotor. Ends.Amendments to the claims have been filed as follows Oceanic Current Energy Extraction System Claims: 1) Linking the dynamos physically in pairs and due to the opposite operating direction, the net tourque applied to any supporting structure becomes zero.2) The use of associate hydraulic units to convert the tourque energy from the rotor axle to hydraulic fluid motion.3) The transfer of energy from the device by hydraulic fluid piping to an on-shore or platform based electricity-generating plant.
GB0816605A 2008-09-11 2008-09-11 Horizontal rotor for marine current energy extraction Withdrawn GB2463313A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0816605A GB2463313A (en) 2008-09-11 2008-09-11 Horizontal rotor for marine current energy extraction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0816605A GB2463313A (en) 2008-09-11 2008-09-11 Horizontal rotor for marine current energy extraction

Publications (2)

Publication Number Publication Date
GB0816605D0 GB0816605D0 (en) 2008-10-15
GB2463313A true GB2463313A (en) 2010-03-17

Family

ID=39889170

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0816605A Withdrawn GB2463313A (en) 2008-09-11 2008-09-11 Horizontal rotor for marine current energy extraction

Country Status (1)

Country Link
GB (1) GB2463313A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2007638A (en) * 2011-10-21 2011-11-17 Scheepers Beheer B V Turbine, preferredly a hydraulic radial turbine, a wind turbine and a system including a turbine.
GB2489073A (en) * 2011-02-23 2012-09-19 Campbell Mckay Taylor Tidal turbine with tapered duct
US20150211475A1 (en) * 2014-01-30 2015-07-30 Mihalis Vorias Power generating assembly
RU2563560C1 (en) * 2014-01-28 2015-09-20 Степан Павлович Филипчук Device to convert energy of free water flow into electric energy

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10131821A1 (en) * 2001-06-30 2003-01-16 Alexander Koschelev Water power block for driving mechanical equipment such as water mill, comprises rising surface directed towards outlet of water flow and falling surface which is curved facing turbine blades
GB2394514A (en) * 2002-10-26 2004-04-28 Velauthar Srikonesh Ocean driven turbine generator with guide channel
CA2421139A1 (en) * 2003-03-03 2004-09-03 Gabriel Marinescu Hydraulic turbine for deep ocean conditions
ES2296441A1 (en) * 2005-03-22 2008-04-16 M. Elena Novo Vidal Hydraulic machine for driving electric generator for use in electricity obtaining system from moving fluid, includes a drum, which rotates around axis by series of palettes, which have certain curvature that are driven by movement of fluid
US20080211233A1 (en) * 2005-05-05 2008-09-04 Francis Allen Farrelly Water Turbine in Tethered Asymmetric Nozzle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10131821A1 (en) * 2001-06-30 2003-01-16 Alexander Koschelev Water power block for driving mechanical equipment such as water mill, comprises rising surface directed towards outlet of water flow and falling surface which is curved facing turbine blades
GB2394514A (en) * 2002-10-26 2004-04-28 Velauthar Srikonesh Ocean driven turbine generator with guide channel
CA2421139A1 (en) * 2003-03-03 2004-09-03 Gabriel Marinescu Hydraulic turbine for deep ocean conditions
ES2296441A1 (en) * 2005-03-22 2008-04-16 M. Elena Novo Vidal Hydraulic machine for driving electric generator for use in electricity obtaining system from moving fluid, includes a drum, which rotates around axis by series of palettes, which have certain curvature that are driven by movement of fluid
US20080211233A1 (en) * 2005-05-05 2008-09-04 Francis Allen Farrelly Water Turbine in Tethered Asymmetric Nozzle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2489073A (en) * 2011-02-23 2012-09-19 Campbell Mckay Taylor Tidal turbine with tapered duct
NL2007638A (en) * 2011-10-21 2011-11-17 Scheepers Beheer B V Turbine, preferredly a hydraulic radial turbine, a wind turbine and a system including a turbine.
RU2563560C1 (en) * 2014-01-28 2015-09-20 Степан Павлович Филипчук Device to convert energy of free water flow into electric energy
US20150211475A1 (en) * 2014-01-30 2015-07-30 Mihalis Vorias Power generating assembly
US9651018B2 (en) * 2014-01-30 2017-05-16 Mihalis Vorias Power generating assembly

Also Published As

Publication number Publication date
GB0816605D0 (en) 2008-10-15

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)