WO2021240396A1 - Système de production hydroélectrique marémotrice - Google Patents

Système de production hydroélectrique marémotrice Download PDF

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Publication number
WO2021240396A1
WO2021240396A1 PCT/IB2021/054593 IB2021054593W WO2021240396A1 WO 2021240396 A1 WO2021240396 A1 WO 2021240396A1 IB 2021054593 W IB2021054593 W IB 2021054593W WO 2021240396 A1 WO2021240396 A1 WO 2021240396A1
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WO
WIPO (PCT)
Prior art keywords
generating system
pipe
hydroelectric generating
hydroelectric
turbine
Prior art date
Application number
PCT/IB2021/054593
Other languages
English (en)
Inventor
Graham Hodgson
Original Assignee
Tidal Renewable Energy Limited
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 Tidal Renewable Energy Limited filed Critical Tidal Renewable Energy Limited
Priority to GB2108623.6A priority Critical patent/GB2598824A/en
Publication of WO2021240396A1 publication Critical patent/WO2021240396A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations 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
    • F03B13/26—Adaptations 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
    • F03B13/264—Adaptations 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
    • E02B9/08—Tide or wave power plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B15/00—Controlling
    • F03B15/02—Controlling by varying liquid flow
    • F03B15/04—Controlling by varying liquid flow of turbines
    • F03B15/06—Regulating, i.e. acting automatically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/08—Machine or engine aggregates in dams or the like; Conduits therefor, e.g. diffusors
    • F03B13/086—Plants characterised by the use of siphons; their regulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/20—Application within closed fluid conduits, e.g. pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/50—Control logic embodiment by
    • F05B2270/506—Control logic embodiment by hydraulic means, e.g. hydraulic valves within a hydraulic circuit
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Definitions

  • This present invention relates to a tidal hydroelectric generating system which exploits tidal height differences between two areas to generate electricity.
  • tidal flow generators may be placed in the sea, making use of the energy of a tidal flow.
  • the tidal flow of water then generates power by passing through turbines in a barrage or lagoon wall or through the tidal flow generator.
  • tidal flow generators can only exploit strong tidal current local to the tidal flow generator, which limits their geographical use and their generating capacity.
  • barrage and lagoon systems can be ecologically damaging to their locality, affecting sediment and other conditions due to damming and high water turbulence at the outlets of the turbines and at times, due to the need to flood large areas of previously shallow mud flats, where birds and other wildlife are affected.
  • the average power generation of barrage and lagoon systems is normally about 40% of the generator capacity. This is due to the high tide water that has to be held behind the barrage until a low tide when there is sufficient head of water to flow through the turbines to generate power.
  • cabling When tidal flow generators are located to make use of ocean currents, cabling may have to be many miles long. This causes problems with voltage drop where the cable hits landfall.
  • French patent application FR 3 081 940 discloses a method and a system for producing, from sea or river currents, a circulation of water intended to turn a set of remote turbines for electrical energy generation.
  • the system consists of submerged caissons which transform underwater currents into an accelerated flow of water which is routed using pipes to the turbines.
  • Japanese patent application JPS 57181976 discloses a generator connected to a water hammer pump whose pumping head and pump discharge are set in practical pressure ranges for the pump to discharge.
  • United States patent application US 2015/0113968 describes a transient liquid pressure power generation system that includes a drive component, and a valve to cause a high pressure transient wave in the liquid traveling towards a liquid source to operate the drive component.
  • US patent US 6 606 857 discloses a fluid actuated power assembly for generating power from a pressurised fluid.
  • a tube is provided for siphoning fluid from a body of water to a vane motor.
  • a generator is coupled to the vane motor to produce electricity.
  • United States patent application US 2006/0181086 discloses a hydroelectric power generating apparatus with one or more inlet pipes perpendicular to a flow of water in a stream or river.
  • the inlet pipes have a length and have apertures along at least one inlet pipe.
  • a feedline and a turbine generator combination are interconnected with the inlet pipes.
  • One or more outlet pipes are interconnected with the feedline and the turbine generator.
  • the outlet pipes have an elevation lower than the inlet pipe.
  • a flow of water passes through the inlet pipes, the feedline, the turbine generator combination, and the outlet pipes, and generates electricity from the flow of water passing through the turbine generator combination.
  • the invention arose in order to solve the problems associated with prior art and the aforementioned systems.
  • a hydroelectric generating system comprising: a network of pipes, interconnected with at least a first valve which is operative to open one end of a pipe in the network, when the first end is at a relatively high pressure location, and a second valve opens a second end of a pipe in the network, the second end is in a relatively low pressure location; at least one hydroelectric turbine is located between the relatively high and relatively low pressure locations so that water flows from the relatively high pressure location to the relatively low pressure location, through the at least one hydroelectric turbine, thereby generating electricity; and a control system remote from the valves is operative to actuate at least one of the valves in accordance with a signal from a processor the signal being dependent upon tide times.
  • the present invention proposes a hydroelectric turbine, with the inlet and outlet fed from pipes serving two or more geographic areas, to exploit the potential energy of any tide and tidal currents, oceanic and or coastal without polluting environmental locations and without damage to them.
  • the invention is modular and can be removed after installation for upgrading, maintenance and repair and does not require the expense major infrastructure and construction equipment or materials, or use of barriers that are often associated with lagoons and conventional hydroelectric tidal flow generators.
  • At least one hydroelectric turbine is located on an oil rig platform.
  • at least one hydroelectric turbine is located on a decommissioned ship.
  • the at least one hydroelectric turbine is located on land.
  • An advantage of this is that electricity can be transmitted directly to high voltage power lines in an electricity grid.
  • Another advantage is that maintenance and repair cost are lower as turbines are housed in a conventional turbine hall and so do not have to be modified for undersea use.
  • At least one pipe is laid on the sea bed.
  • Preferably at least one pipe is buried under the sea bed.
  • At least part of a pipe may be floating on the sea or in a semi-submerged state. Suitable markings and warnings systems are incorporated in such floating or semi-submerged systems.
  • Pipes are ideally flexible in parts to allow a pipe inlet and/or a pipe outlet to be moved to open towards or away from a rising or falling tide.
  • Actuators may be provided for orienting a pipe inlet towards or away from a direction of a tide.
  • the actuator is a robotic actuator.
  • a means is provided to vary the size of a manifold or opening of a pipe inlet or outlet to accommodate fluctuations in turbulence or mass flow.
  • the manifold is provided on an entrance of at least one of the pipes and reduces turbulence.
  • one or more filters are provided to prevent fish and other debris from entering a pipe and damaging a turbine or killing aquatic life, such as fish.
  • water may be delivered to a raised region or platform where a holding tank with a weir is located.
  • the water has potential energy by virtue of it being raised to an elevated position.
  • the weir optionally has sluices over which fish can swim and escape.
  • grills or bars are provided to provide a by-pass route or channel for fish to swim through, whilst water is retained in a holding tank or reservoir, from which water drops through a height and passes through turbines, converting its potential energy into kinetic energy and then to electricity.
  • At least one pipe, or part of a pipe is formed from a recycled plastics material.
  • the diameter of at least two of the pipes is different one from another.
  • a syphon is established between at least one of hydroelectric turbines and a pipe outlet.
  • valves are located at entrances/exhausts of pipes.
  • valves may be located between each end of a pipe and used to control flow through the pipe. Valves therefore may be located at interconnects, nodes, junctions or connections between two or more pipes.
  • a remote control system which is operable to control one or more hydroelectric generating systems, may be included.
  • the remote control system ideally includes: a communication system capable of operating valves, of one or more hydroelectric generating systems, from a remote location, so as to cause the hydroelectric generating systems to operate separate networks in a sequential manner with respect one to another.
  • a communication system capable of operating valves, of one or more hydroelectric generating systems, from a remote location, so as to cause the hydroelectric generating systems to operate separate networks in a sequential manner with respect one to another.
  • valve opening and closing including the sequence in which valves are opened and closed; the time at which they are opened and closed; and the degree to which each valve is opened and closed, is controlled by two or more inputs.
  • Input signals may be provided to a remote control centre or directly to servos or actuators which oversee the opening and closing of valves.
  • Signals indicating absolute and relative sea levels may be obtained from satellites.
  • signals indicating absolute and relative sea levels may be obtained from buoys or measuring stations on a region of coast or on estuaries. By measuring sea height data and using this to control computer to allow the control to be adjusted to accommodate water that is blown by storms or high winds along a stretch of coastline.
  • An advantage of this configuration is that sea levels, are obtained from buoys and/or measuring stations and/or satellites and are processed by a computer to obtain control signals for control, valves in response to variations in weather conditions, such as variations in air pressure or storm surges.
  • outlets of pipes of the network are disposed at different locations, in tidal zones, so that valves are opened in a sequence according to location and tidal height in a zone, in order to maximise the period of electricity generation.
  • This system may be managed to generate electricity continuously by exploiting tidal progression as tides rise and fall along a particular stretch of coast.
  • the generating system is deployed as a temporary structure.
  • Figure 1 shows a diagrammatic view of a pipe with turbine blades and a generator for illustrative purposes
  • Figure 2 shows a diagrammatical view of a pipe extending to two areas of water, at differing heights, separated by a land mass;
  • Figure 3 shows a diagrammatical views of a pipe extending through a land mass which connects two separate areas of water
  • Figure 4 shows an aerial view of an embodiment of the invention deployed along a length of coast
  • Figure 5 shows an embodiment of the invention where a turbine and generator are installed on a rig or decommissioned oil platform
  • Figure 6 shows an embodiment of the invention where a turbine and generator are installed on a ship or floating platform
  • Figure 7 shows an embodiment of the invention where a system of interconnected pipes is installed along a stretch of coastline with pipes branching into different geographical areas of the sea to exploit progressing tides;
  • Figure 8 shows an embodiment of the invention with a filter located at an inlet of the pipe to prevent fish and large objects from being drawn into the pipe;
  • Figure 9 shows an embodiment of the invention where a low flow turbine is provided which is switchable from a high pressure to a flow turbine by use of diverter valves;
  • Figures 10 and 11 show examples of locations with prime tidal ranges that could be exploited within the local area;
  • Figure 12 is a diagrammatical view showing how a large pipe inlet reduces to a narrower bore in order to increase rate of flow;
  • Figure 13 illustrate diagrammatically where a turbine and generator are located on a sandbar or isthmus
  • Figure 14 shows an example of a mesh which is placed over a pipe inlet when a valve used as an inlet, prior to a valve being opened, in order to prevent ingress of debris and flotsam.
  • the present invention proposes a hydroelectric turbine, with the inlet and outlet fed from pipes serving two or more geographic areas, to exploit the potential energy of tide and tidal currents, in the two or more geographic areas. Without pollution, environmental damage, geographic restrictions, or the use of barriers, lagoons and the geographic restrictions of hydroelectric tidal flow generators.
  • an inlet pipe/s could be in say the river Seven and the outlet pipe/s just off the welsh coast and vice versa. This allows for the large tidal differences between any two geographic areas to be exploited. Considerable distances between tidal zones could be exploited with long pipes.
  • Figure 12 shows an instance where the open ends of the pipes 10 and or 16 are enlarged 28 to form a Venturi inlet.
  • the water at 22 enters pipe 10 and the restriction of the Venturi and be forced to increase in flow rate 24, because water is not compressible.
  • This difference in absolute water levels produces a head of water which results in kinetic energy (KE) when the water flows to drive turbines 10.
  • KE kinetic energy
  • FIG. 1 there is shown a diagram illustrating the principle of the invention.
  • An inlet/outlet of a pipe 10 is joined to an inlet of a hydroelectric turbine 12.
  • the outlet of the turbine 12 is connected to another inlet/outlet of pipe 16.
  • Power output of the turbine 12 connected to and drives an electric generator 14.
  • Figure 1 shows an instance where the turbine 12 and generator 14 are positioned closer to the outlet of the system to reduce turbulence in the pipes 16 after water has passed through the turbine 12.
  • Inlet and outlet ends of pipes can be effectively reversed depending on tidal conditions and in order to modify flow rates of water exiting a pipe.
  • the control of inlet and outlet mass flow avoids or reduces turbulence in specific localities so as to avoid disturbing sediment, mud flats or areas of ecological importance.
  • the fact that inlet/outlet sizes can be varied also has the advantage that the pipes 10 and 16 can be smaller in diameter and but as they are carrying the same mass flow of water, a higher velocity of water between inlet and outlet results.
  • FIG. 2 there is shown an arrangement corresponding to that shown in Figure 1 and depicting a coastal area where pipe 10 is in a geographic area of higher tide 48.
  • Pipes 10 are typically buried under the sea bed or underground.
  • Turbine 12 and generator 14 are shown above sea level, located on land.
  • Pipe 16 exits the turbine 12 and exhausts to an area of lower tide 50. It is understood that in use pipes 10 and turbine 12 are evacuated of air and fill with water. By establishing a syphon, this allows water to flow through the turbine 12, initially ‘uphill’ and pipes that are buried under the sea bed assist in creation of the siphon.
  • Figure 3 shows another example of the system where a turbine 12 and generator 14 are installed on the land 41 below an average sea level, so that no syphon is required for their operation.
  • Figure 4 shows an embodiment where the system is used for the progression of tides along a section of coast 46.
  • pipe 10 is fed from a region of higher tide 48 via a turbine 12 driving a generator 14 on the land 46. Water then exits turbine 12 by pipe 16 to another geographical area of lower tide 50.
  • FIG 5 shows an instance where the turbine 12 and generator 14 are installed on an oil rig platform 60.
  • Like parts bear the same reference numerals.
  • Figure 6 which shows a turbine 12 and generator 14 installed on a ship or floating platform 40.
  • Figure 7 shows an embodiment where the system is installed at a coastal location 46 with pipes 10 and 16 branching into several geographical areas of the sea to exploit the progression of the tide by opening and shutting valves 42 in a sequential manner.
  • FIG 8 there is shown a filter 56 on one end of a pipe 10 to stop or inhibit fish and large objects from entering the pipe 10.
  • Figure 9 shows an example of a low flow turbine 12 and how it can be switched with a higher pressure or higher flow turbine 18 by the use of diverter valves 42.
  • Figures 10 and 11 show various locations in the UK where normal tidal areas may be exploited by the invention.
  • Figure 12 is a diagrammatical view showing how a large pipe inlet reduces to a narrower bore in order to increase rate of flow.
  • Figure 13 illustrate diagrammatically where a turbine and generator are located on a sandbar or isthmus.
  • Figure 14 shows an example of a mesh which is placed over a pipe inlet when a valve used as an inlet, prior to a valve being opened, in order to prevent ingress of debris and flotsam.
  • the head of water of a higher tide in one or more geographic areas provides a hydrostatic pressure which drives a hydroelectric generators by when delivered to the generators by pipes.
  • the resulting spent water is taken by pipes to one or more geographic areas of lower tide via a route in a network of pipes that is directed by valves and determined by a controller.
  • the potential energy of the tidal differences between geographic areas is therefore transformed into kinetic energy in the pipes and passed through the turbines to generate electricity.
  • the system therefore harnesses tidal differences, depicted by different heights of water in Figures 10 and 11 , between two or more geographic areas, can be coastal or oceanographic, or both.
  • tidal differences depicted by different heights of water in Figures 10 and 11
  • an inlet pipe/s could be in say the river Seven and the outlet pipe/s just off the welsh coast and vice versa. This allows for the large tidal differences between any two geographic areas to be exploited. Considerable distances between tidal zones could be exploited with long pipes.
  • Figure 12 shows an instance where the open ends of the pipes 10 and or 16 are enlarged 28 to forming a Venturi inlet.
  • the water at 22 entering the pipe will enter the restriction of the Venturi and be forced to increase in flow rate 24, because water is not compressible. This produces a greater kinetic energy to drive the turbines. This increase the efficiency of the system.
  • the outlet end can be vice versa, dropping the flow rate of the exiting water, which will be less turbulent in the local environment.
  • This also has the advantage that the pipes 10 and 16 can be smaller in diameter, carrying higher velocity water, in between geographic areas as well as being less expensive to construct and install.
  • Figure 13 shows an instance where the turbine 12 and generator 14 are positioned closer to the outlet of the system to reduce turbulence in the pipe after the water has gone through the turbine 12.
  • the hydroelectric turbine generator can be built at any convenient position and transported for local installation. Maintenance of the turbine is a lot easier with the turbine on land, or in any other convenient position out of the corrosive environment of the sea.
  • the hydro turbine generator inlet and outlet pipes may have multiple branches and or branch shut off valves/gates. These allow the management of the use of different geographical tidal differences, to provided optimal flow rates through the hydro generators, as shown for example in Figure 7.
  • the pipes may be laid on the sea bed, use a syphon or inverted syphon if the generators are on land syphon maximum height of about 10 metres.
  • the pipes could be floated on the sea or semi submerged or tethered.
  • the pipes could be sufficiently flexible to allow the inlets or outlets of the pipes to be moved to follow the high and or low tide. This movement could be via robotic power heads, ships etc.
  • the pipes could go over land, or be buried under the land, or tunnelled. See Figure 2 and 3.
  • the mouth or multiple mouths of the inlets and outlets can be in deep water, and if away from the sea bed, the turbulence helps to ensure against sediment disturbance.
  • open ends of pipes 10 have filters to stop fish and other large objects entering the pipes and damaging the turbines.
  • the flow through the pipe may be diverted between two or more turbines to allow for the different tidal flow rate between ebb and high tide to be exploited with turbines designed for low flow rates used at the ebb tide. Then being switched with a diverter to a higher flow rate designed turbine at higher tide.
  • the invention exploits any tidal differences from different geographic areas, either very local (within a few hundred metres) and or far apart.
  • a gate/valve in any part of the pipe allows for the management of hydroelectric generation to match energy demand, when the demand for energy is low the gate/valve can be shut or partially shut and the difference in tidal zone height between the two or more geographical areas can be allowed to build until the energy demand is greater, then when the gate/valve is opened there will be greater potential energy between the geographic areas and this will convert to greater kinetic energy to drive the turbines.
  • the laying of pipework is a lot less expensive than tidal barriers or lagoons.
  • FIG. 11 shows an example of a mesh 100 which is placed over a pipe inlet 102 when a valve 104 used as an inlet, prior to the valve 104 being opened, in order to prevent ingress of debris and flotsam.
  • Pipes are flexible and may be reinforced with a wire mesh or other strong tensile material.
  • Pipes may comprise steel pipes and synthetic plastics pipe sections connected together to enable pipes to flex and bend in strong currents, as well as define a strong and durable conduit for relatively faster flowing water which can withstand pressure differentials across the pipe wall which may arise.
  • the system enables turbines to be ideally located above sea level so that in some embodiments water can be syphoned up an inlet pipe from the higher tidal area, through the turbine, then down the outlet pipe into the lower tidal area, thereby exploiting the difference in absolute water levels.
  • An advantage over tidal flow generators is that instead of only being able to exploit the tidal flow at one position this invention can exploit the tidal zone as it is building over a larger geographic area, so it will be able to generate earlier and later on the same tidal flow that the tidal flow at the location of a generator.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Oceanography (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

La présente invention concerne un système de production hydroélectrique à partir des marées. La technologie hydroélectrique marémotrice actuelle utilisée est complètement limitée à des zones géographiques appropriées. Les barrages et les lagons à marée sont coûteux à construire, utilisent de très grandes quantités de matières premières et d'énergie et ont un impact environnemental préjudiciable. Ils ne génèrent qu'à peu près 40 % de la capacité du générateur électrique. L'invention est appropriée pour être utilisée sur tous les courants océaniques et/ou les marées côtières, y compris dans les ports. Un avantage est que des quantités relativement petites de matériaux sont utilisées dans sa construction. Elle présente peu ou pas d'impact environnemental et est beaucoup moins coûteuse à construire et à déployer.
PCT/IB2021/054593 2020-05-26 2021-05-26 Système de production hydroélectrique marémotrice WO2021240396A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2108623.6A GB2598824A (en) 2020-05-26 2021-05-26 Tidal hydroelectric generating system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2007829.1 2020-05-26
GBGB2007829.1A GB202007829D0 (en) 2020-05-26 2020-05-26 Tidal hydroelectric generating system

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WO2021240396A1 true WO2021240396A1 (fr) 2021-12-02

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57181976A (en) 1981-05-01 1982-11-09 Hiroshi Ochiai Hydraulic generator
CH653102A5 (en) * 1981-01-27 1985-12-13 Imre Szelle Fluid power plant
US6606857B1 (en) 2002-02-28 2003-08-19 Thermal Dynamics, Inc. Fluid actuated generator
US20060181086A1 (en) 2005-02-17 2006-08-17 Martin Gerald G Method and apparatus for generating hydro-electric power
DE102008009453A1 (de) * 2008-02-17 2009-08-20 Born, Günter Heinrich Wasserkraftwerk, mehrstufig, unter Nutzung von Ebbe und Flut, Verfahren und Technik
WO2012127486A1 (fr) * 2011-03-24 2012-09-27 Perumal Munusamy Système de production d'énergie électrique par siphonnement d'eau de mer en bord de mer
US20150113968A1 (en) 2009-12-21 2015-04-30 Ronald Kurt Christensen Transient liquid pressure power generation systems and associated devices and methods
US9039326B1 (en) * 2014-09-02 2015-05-26 Ethan Novek Tidal power system and methods
FR3081940A1 (fr) 2018-06-01 2019-12-06 Herve Rostan Procede et systeme pour produire de l'energie electrique a partir de courants marins ou fluviaux

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH653102A5 (en) * 1981-01-27 1985-12-13 Imre Szelle Fluid power plant
JPS57181976A (en) 1981-05-01 1982-11-09 Hiroshi Ochiai Hydraulic generator
US6606857B1 (en) 2002-02-28 2003-08-19 Thermal Dynamics, Inc. Fluid actuated generator
US20060181086A1 (en) 2005-02-17 2006-08-17 Martin Gerald G Method and apparatus for generating hydro-electric power
DE102008009453A1 (de) * 2008-02-17 2009-08-20 Born, Günter Heinrich Wasserkraftwerk, mehrstufig, unter Nutzung von Ebbe und Flut, Verfahren und Technik
US20150113968A1 (en) 2009-12-21 2015-04-30 Ronald Kurt Christensen Transient liquid pressure power generation systems and associated devices and methods
WO2012127486A1 (fr) * 2011-03-24 2012-09-27 Perumal Munusamy Système de production d'énergie électrique par siphonnement d'eau de mer en bord de mer
US9039326B1 (en) * 2014-09-02 2015-05-26 Ethan Novek Tidal power system and methods
FR3081940A1 (fr) 2018-06-01 2019-12-06 Herve Rostan Procede et systeme pour produire de l'energie electrique a partir de courants marins ou fluviaux

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