EP3645863A1 - Dispositif de turbinage impliquant une chute d'eau provoquée par la mise en oeuvre d'un tube de venturi et installation hydraulique de production d'énergie mettant en oeuvre un tel dispositif de turbinage - Google Patents
Dispositif de turbinage impliquant une chute d'eau provoquée par la mise en oeuvre d'un tube de venturi et installation hydraulique de production d'énergie mettant en oeuvre un tel dispositif de turbinageInfo
- Publication number
- EP3645863A1 EP3645863A1 EP18749008.1A EP18749008A EP3645863A1 EP 3645863 A1 EP3645863 A1 EP 3645863A1 EP 18749008 A EP18749008 A EP 18749008A EP 3645863 A1 EP3645863 A1 EP 3645863A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- volume
- water
- turbine
- flow
- air
- 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- Withdrawn
Links
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
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/02—Machines or engines of reaction type; Parts or details peculiar thereto with radial flow at high-pressure side and axial flow at low-pressure side of rotors, e.g. Francis turbines
-
- 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
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/002—Injecting air or other fluid
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- 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
-
- 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
- F05B2240/00—Components
- F05B2240/10—Stators
- F05B2240/13—Stators to collect or cause flow towards or away from turbines
- F05B2240/133—Stators to collect or cause flow towards or away from turbines with a convergent-divergent guiding structure, e.g. a Venturi conduit
-
- 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
- Y02E10/20—Hydro energy
-
- 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
- the present invention relates to a turbining device in which the driving force for driving a turbine is generated by a waterfall.
- the waterfall is formed in solid water by exploiting the energy of a localized current.
- the invention finds particular application in the production of electricity by hydraulic force and improves the production of a conventional hydroelectric power plant implementing a water reservoir.
- Turbine turbines which are submerged to form tidal turbines.
- Such turbines operate with the force of the current that drives, through a paddle wheel or a turbine, an electricity generator.
- the powers produced by this type of turbine are therefore directly related to the speed of the current which determines the flow rate that can pass through the turbine.
- the Spanish patent application ES 2,373,892 discloses an at least partially immersed system, driven by a stream of water passing through a Venturi-effect primary tube comprising a constriction, and which can provide work for a turbine placed in a secondary tube. for example, to produce electricity.
- Turbines fed by the energy linked to waterfalls are also known. Indeed, the energy provided by a body of water is even more important than the height of fall is high. In addition to the power available, a high drop height is favorable to the efficiency of a hydroelectric installation.
- a non-turbined reserved flow is maintained at the level of a dam, generally of the order of 10% of the average flow. of the dam.
- the fish can not pass in the opposite direction of the current through the turbine, likewise for the descent, even if it is morphologically possible with the current and except for accidents.
- the turbining device aims to produce mechanical energy that respects the constraints related to the respect of aquatic fauna.
- the turbining device makes it possible to energetically enhance the reserved flow of a hydraulic installation in compliance with the technical and legal obligations, and the ecological constraints, which are imposed on this reserved flow.
- the turbining device intended to be driven by a water flow of a reservoir, comprises:
- Venturi tube comprising a convergent water inlet, a diverging outlet of water and a collar located between the convergent and the diverging;
- a first volume having a side wall, a lower portion communicates with an inner portion of the Venturi tube in a region of the neck, and an upper portion has an upper opening and a suction opening;
- a second volume having a side wall, an upper portion to be immersed under a surface of the reservoir, has a water intake and a lower portion is open on the upper opening of the first volume;
- a third volume having a side wall, a lower part communicates with the first volume through the suction opening of the first volume and comprises an air intake for introducing air into the third volume.
- a turbine assembly is arranged in the second volume, a turbine of the turbine assembly determining a water passage section from the second volume to the first volume, and the side walls of each of the first volume.
- volume, second volume and third volume determine the watertight volumes, outside the openings provided for the communications between the different volumes and the Venturi tube, for the admission of air and for the intake.
- the turbining device has the following additional features, taken alone or in combination in so far as they are technically operable:
- the first volume comprises an upper isolating and / or regulating valve arranged to control a flow of water between the intake and the turbine unit;
- the first volume comprises a lower isolation and / or regulation valve arranged to control a flow of water passing through said first volume towards the Venturi tube;
- the water intake has a filtration grid
- the filtering grid comprises a cleaning device comprising a screen which a scraper knife is arranged to scan a surface of said filtering grid;
- the air intake comprises an air inlet control valve.
- the air intake comprises an air duct, a proximal end opens into the third volume and a distal end opposite the proximal end of said air duct, opens above a surface of the reservoir ;
- the air line is a flexible pipe whose distal end is maintained above the surface of the tank by a float;
- the air intake comprises means for delivering air at a pressure greater than atmospheric pressure.
- the turbining device comprises one or more ballast tanks which provides the turbine device a stable immersed position when the ballast tank or tanks are filled with water, and which ensures the turbomachinery buoyancy when the tank or tanks of ballast are empty of water and full of air;
- the turbine assembly comprises an electric generator mechanically coupled to the turbine of said turbine assembly.
- the invention also relates to a hydraulic power generation system, comprising a water tank and a water flow of the tank determining a height of drop between a surface of the tank and the flow, and implementing at least one turbining device according to the invention such that:
- the axis YY 'of the Venturi tube is oriented in the direction of the flow so that the water of the flow enters the Venturi tube through the convergent and out the diverging;
- a distal end of the air intake opens in the open air.
- the reservoir (R) is a reserve of water resulting from a dam, and or;
- the flow incorporates a reserved flow of the dam, and or;
- the turbining device is immersed in the tank while resting on a bottom of the tank, or is arranged in a structure of the dam.
- the hydraulic power generation system comprises at least one turbining device according to the invention and the reservoir is formed by a flowing stream, or a marine environment comprising a current natural.
- the YY 'axis of the Venturi tube is oriented in the direction of the flow, or the natural flow, so that a flow of water from the flow, or natural flow, enters the Venturi tube by the convergent and out of the divergent.
- FIG. 1 a schematic view of the arranged turbining device for the production of electricity
- Figure 2 is a schematic view of the arrangement of the electric generator associated with the turbine device of Figure 1;
- Figure 3 a schematic view illustrating the detail of an embodiment of a screen
- Figure 4 a schematic representation of an example of a new concept of hydroelectric production dam incorporating in its structure the turbining device according to the invention.
- FIG 1 there is shown a turbining device according to the present invention, installed on a waterfall formed by means of a dam B retaining.
- This embodiment and the corresponding mode of implementation are illustrative and in no way limit the invention.
- the dam B generally built in the bed of a watercourse, causes the formation of a reservoir R whose filling is provided by the surface water of the watershed upstream of said dam.
- a height H is formed with respect to a water intake, in this example substantially corresponding to the height of said dam.
- the dam has, in the illustrated embodiment, a discharge line E for forming a flow of water from the reservoir to a point below an upper surface S of the reservoir.
- the discharge line E is in the general case provided with a stop valve V which makes it possible to control the flow in said discharge duct, in particular to allow said flow to flow or to prohibit it by opening or closing said valve .
- the discharge pipe E advantageously corresponds, but not necessarily, to a pipe implemented to maintain a reserved flow imposed by standards, legal or administrative obligations, or specifications of the reservoir.
- the discharge pipe E takes the water in a deep zone of the reservoir, for example substantially at a bottom F of the reservoir near the dam B and rejects the water also taken from a reservoir. low point to maintain as high a hydrostatic pressure as possible.
- the turbining device in the example of form described, is placed on a bottom F of the tank in which it is immersed upstream of the dam B.
- the turbining device comprises:
- a support 18 providing a mechanical interface between the tank bottom F and the functional part of the turbining device in order to ensure the required stability
- Venturi tube 12 arranged with an axis oriented substantially along a horizontal axis YY ';
- a first volume 107B shown cylindrical with a vertical axis XX 'in FIG. 1, of depression; a turbine assembly 10;
- a third volume 141 represented cylindrical with a vertical axis XX 'in FIG. 1, enveloping the second volume 107H;
- Each of the first, second and third volumes comprises an outer envelope by determining a shape and a capacity, said outer envelope having openings with the ambient environment, the details of which are explained below in the context of the arrangement between them of the different parts of the turbine system.
- the Venturi tube 1 2 has a known architecture of such a tube which, following the direction of flow of a fluid, has a convergent 121 followed by a divergent 122, which converge and diverge are connected to the level of 'a collar.
- an outlet of the divergent 122 is connected to the pipe E so that the water passing through said pipe, forced by the hydrostatic pressure linked to the drop height H, passes through the Venturi tube in its axial direction.
- the first volume 107B has a lower discharge opening 1 23 through which said first volume is open on the inside of the Venturi tube at the neck.
- the first volume 107B has a suction opening 108, located above the lower discharge opening, through which said first volume communicates with the third volume 141.
- the first volume 107B also includes a refill opening 109 located above the suction aperture 108, typically at an upper end of said first volume.
- the turbine assembly 10 is arranged above the first volume 107B of so that an outlet of said turbine assembly, through which the water passing through the turbine is ejected, corresponds to the recharge opening of said first volume.
- the second volume 107H has an ejection opening 110 located in a lower portion of said second volume. Said ejection opening also corresponds to an inlet of the turbine assembly 10.
- the second volume 107H has a feed opening 112 located in an upper portion of said second volume.
- Said feed opening is associated with a water intake 14, in practice provided with a grid 142 which allows the water of the tank R to enter the second volume 107H through the feed opening 112 by filtering the water debris that can be transported by the stream of water and prevent their entry into said second volume.
- the third volume 141 whose cylindrical overall shape is arranged coaxial with the second volume 107H to contain said second volume, communicates in a lower portion of said third volume with an upper portion of the first volume 107B.
- the suction opening 108 forms gills in a wall of the first volume in a low-pressure zone of the flow of water passing through said first volume so that the water potentially contained in the third volume 141 is sucked by said gills, as illustrated by the arrows shown in Figure 1.
- the air intake 16 comprises a pipe 161 opening at a distal end 163 of the third volume 141 into the atmosphere so as to allow an air inlet at atmospheric pressure and opening at a proximal end 1 64 of the third volume 141 in said third volume so that air entering through the distal end pops into the third volume by the proximal end.
- the air intake 16 comprises an air inlet control valve V3, for example located near the proximal end 164 to integrate its installation with the structure of the turbining device.
- a lower valve valve V2 which in a closed position closes the first volume 1 07B so that a vertical flow of water along the axis of said first volume is interrupted. and which in a more or less open position allows such a flow, allowing the flow rate to be regulated if necessary.
- an upper valve valve V1 which in a closed position closes the second volume 107H so that a vertical flow of water to the first volume 107B, along the axis of said second volume is interrupted and which in a more or less open position allows such a flow by allowing if necessary to regulate the flow.
- FIG. 2 schematically illustrates an example of a turbine assembly 10 adapted to the case of electricity production.
- a generator 11 of electric current is associated with a turbine 110, a rotor 104 is coupled to a rotor 101 of the generator.
- a fixed structure supports a stator 102 of the generator to maintain an air gap 103 with the rotor of said generator, this in a known manner.
- An axis XX 'of rotation of the rotating parts of the turbine assembly is vertical, said rotating parts being kept free in rotation with respect to the fixed structure.
- the turbine 110 is in itself of a conventional form which will be adapted to the particular case of the turbining system in question, in particular taking into account its operating conditions, such as the flow rate and the drop height.
- the turbine may be of axial flow type.
- the turbine may be of the radial flow type.
- the generator 11 is placed above the turbine 110 and with an inner rotor 101.
- this example is not limiting and the skilled person can apply any known form of generator and coupling between the generator and the turbine that he will consider adapted according to its constraints: dimensions, cooling, sealing ...
- the chassis 1 8 is schematically represented in the form of a metal structure 181 with feet 182 resting on the bottom F of the tank R, advantageously on a platform, not shown, built for this purpose to provide the turbine device with a position precise and stable for which it was designed.
- the chassis 18 supports all the other components of the turbining device which has just been described so as to constitute a monolithic assembly.
- holding means at the bottom of the tank in the form of ballast 183 and an optional ground anchoring, not shown.
- ballast tanks 185 are formed whose filling with water, and the emptying are controlled so as to immerse and emerge the turbining device by filling or emptying said ballast tanks.
- the Archimedes thrust produced ensures the floating of the device. turbines.
- ballast tanks 185 are for example, as illustrated, made under the third volume 141 by an extension of a wall of said third volume continuing down to the frame 18.
- partitions separate tightly the different volumes between them and with the environment.
- This prolonged wall of the third volume is able to serve as a main vertical structure on which can be fixed securely the different parts of the turbine device, for example by ribs and not shown reinforcements.
- Such an arrangement makes it possible to bring the turbine device to float on the surface S of the reservoir, substantially vertical to the functional position, for a light intervention or a routine inspection, without it being necessary to use means complex lifting.
- the anchors and ballast tanks must allow the dryness of the turbine device for more or less complex operations of maintenance or repair.
- the buoyancy of the turbining device makes it possible to easily move the turbine device, for example by towing, to the surface of the tank towards lifting means, not shown, or towards a dry dock, not shown.
- the turbining device will include as many needs of the rings or bollards to be towed and lifted when needed. Operation of the turbine device.
- Figure 1 illustrates the turbining device described above in an environment ensuring its operation.
- the turbine device is immersed in a tank R so that the water intake 14 is below the surface S of said tank. This water intake 14 is thus supplied with water continuously.
- the distal end 163 of the air intake is held in the open air above the tank surface by a snorkel or other system. equivalent, for example by means of a float 162 in the case of a pipe 161 flexible or articulated.
- the divergent 122 of the Venturi tube is connected to the discharge line E so that, with the shut-off valve V open, the flow of water forced into the said discharge line by the hydrostatic pressure resulting from the height of H drop, passes through the Venturi tube 12 penetrating through the convergent 121 open in the tank R.
- a depression in the section of the neck is formed in a known manner, a depression resulting from the acceleration of the flow in this section.
- This depression has the effect of drawing the water that is in the first volume 107H as soon as the lower valve valve V2 is open and, by continuity of the volumes communicating through the gills, also sucks the water and or of the air which is in the third volume 141 when air is admitted by the air intake 16, which assumes that the valve V3 air inlet control, if such a valve is implemented, is opened.
- the water level in said third volume decreases accordingly, the released space being then occupied by air admitted to atmospheric pressure by the air intake 16.
- the suction of water through the Venturi tube will cease when the equilibrium of the pressures is reached or all the water has been sucked into the first volume and the third volume, as well as into the second volume 107H whose water is discharged by gravity in the first volume 107B, provided that the upper valve valve V2 is kept closed.
- the lower valve valve V2 and or the upper valve valve V1 are advantageously used to regulate the operation of the turbine device, and advantageously to manage the stopping and starting phases of said turbocharging device.
- the lower valve valve V2 provides control of the water supply sucked by the Venturi tube 12, closing more or less a section of the first volume 107B.
- the upper valve valves V1 makes it possible to regulate the flow rate of the water entering the second volume 107H, and when the device stops isolating said second volume from the tank R.
- the grid 143 may comprise a screen in the form of a scraper knife 144, mounted to rotate on an axis of revolution of said grid, in order to scrape a wall of said grid and prevent its obstruction by objects. floating ads.
- a motor not shown, advantageously drives this scraper knife.
- the continuous suction of air from the third volume when the device is in operation also has the effect of producing a large exchange surface between air bubbles and the water entraining the sucked air, which favors the oxygenation of water favorable to the development of aquatic life.
- the energy produced by means of the turbining device of the invention is accumulated with a primary production of energy by the conventional means implemented by the dam B, if said dam comprises such means, without affecting said primary production. and thus improves the overall efficiency of the dam.
- the energy produced by the turbining device of the invention makes it possible to use a portion of the water of the reserved flow without affecting the passage left free for the fauna which can cross the Venturi tube without any obstacle.
- the turbining device of the invention is placed in a natural or forced stream as the only means of energy production, so as to maintain a passage section of the flow of natural water free of heat. 'obstacle.
- the turbining device can be placed in a marine environment in a permanent current or in a tidal stream provided that it is taken care of to orient the horizontal axis YY 'in the direction of the current.
- the turbining device can be placed in the stream of a stream, with which it will be able to produce energy without forming an obstacle to the movement of fish.
- the turbine device can be placed in a tank upstream of a flow supplying turbines of the dam to produce additional energy without specific water sampling.
- it will be taken care to place the turbine device at a sufficient distance from the turbines of the dam so that the flow of water having passed through said turbine device is stabilized, without critical swirls, and to avoid or to limit the risk of revealing cavitation phenomena induced by the operation of the turbining device.
- FIG. 4 schematically shows in plan view, a form of implementation in which the turbine device is integrated in a technical structure of the dam B.
- the dam also incorporates a hydroelectric power plant in which turbines 90, for example vertical axis Kaplan turbines, are also installed. conventional manner placed in water tubes 91 crossing the dam from upstream to downstream of the flow.
- turbines 90 for example vertical axis Kaplan turbines
- the Venturi tube 12 of the turbining device of the invention is sized to continuously deliver at least the reserve flow rate and the water sample in the reservoir feeding the convergent 121 of the Venturi tube is advantageously placed in a sediment accumulation zone 92 which are thus continuously discharged into the flow passing through said Venturi tube without the risk of damaging a turbine.
- the turbining device of the invention can be implemented to meet localized energy needs, its installation does not require, in its submerged version, major civil engineering work which limits its ecological impact.
- Another advantage of the turbining device of the invention is to meet temporary energy needs, said turbine device can be stopped and put back into operation without interrupting the flow of the reserved flow.
- the different volumes can be arranged differently, for example juxtaposed for some or with staggered axes to facilitate their manufacture, assembly and inspection.
- each element of the turbining device will be adapted to each particular case according to parameters such as the height of drop, the reserve flow rate, the expected power of said turbine device.
- the arrangement of the turbine assembly may also be different, in particular depending on the type of turbine used and on the system driven by said turbine.
- the invention is particularly suitable for driving an electric generator, it is also possible to drive other equipment, for example pumps, in general any equipment that can be driven by a rotating shaft, with or without reducer, the equipment that can be mounted closer to the turbine, as in the case described, or equipment that can be installed above the surface of the tank subject to implement a power transmission shaft of suitable length.
- the air supplied by the air intake is at atmospheric pressure for a natural supply of the third volume.
- the air supply of the turbine device is forced.
- an air compressor not shown in the drawings, is associated with the air intake 16 so that the air admitted into the third volume 141 is at a pressure greater than atmospheric pressure.
- Such a shape provides superior control capabilities through a larger air pressure range. It also makes it possible to ensure a faster start of the turbining device and to adapt it to more or less high falls.
- Figure 1 is not representative in its proportions and in the relative dimensions of the different elements of a real installation but only a functional representation.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1770690A FR3068397A1 (fr) | 2017-06-28 | 2017-06-28 | Dispositif de production d'electricite avec un rendement ameliore, notamment a partir d'une chute d'eau moyenne hauteur |
FR1762958A FR3068398B1 (fr) | 2017-06-28 | 2017-12-22 | Dispositif de turbinage impliquant une chute d’eau provoquee par la mise en oeuvre d’un tube de venturi et installation hydraulique de production d’energie mettant en oeuvre un tel dispositif de turbinage |
PCT/FR2018/051557 WO2019002750A1 (fr) | 2017-06-28 | 2018-06-26 | Dispositif de turbinage impliquant une chute d'eau provoquée par la mise en oeuvre d'un tube de venturi et installation hydraulique de production d'énergie mettant en oeuvre un tel dispositif de turbinage |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3645863A1 true EP3645863A1 (fr) | 2020-05-06 |
Family
ID=59930637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18749008.1A Withdrawn EP3645863A1 (fr) | 2017-06-28 | 2018-06-26 | Dispositif de turbinage impliquant une chute d'eau provoquée par la mise en oeuvre d'un tube de venturi et installation hydraulique de production d'énergie mettant en oeuvre un tel dispositif de turbinage |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3645863A1 (fr) |
FR (2) | FR3068397A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2619352A (en) * | 2022-06-02 | 2023-12-06 | Tidal Renewable Energy Ltd | Marine hydroelectric generating system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2373892B1 (es) * | 2009-01-27 | 2012-11-19 | Leopoldo Alandete Jurado | Sistema para establecer una corriente de fluido mediante succión en una corriente de agua. |
DE102010034572A1 (de) * | 2010-08-17 | 2012-02-23 | Technische Universität München | Wasserkraftwerksrechenanordnung |
CA2717581A1 (fr) * | 2010-10-12 | 2011-01-18 | Quantum Supply Ltd. | Methodes et installation de dissipation de tete hydrostatique de centrales hydroelectriques |
EP3198138A1 (fr) * | 2014-09-25 | 2017-08-02 | Bruno Cossu | Compresseur d'air hydraulique immergé pourvu d'une colonne d'eau en écoulement à pompe d'aspiration d'eau |
-
2017
- 2017-06-28 FR FR1770690A patent/FR3068397A1/fr active Pending
- 2017-12-22 FR FR1762958A patent/FR3068398B1/fr active Active
-
2018
- 2018-06-26 EP EP18749008.1A patent/EP3645863A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
FR3068397A1 (fr) | 2019-01-04 |
FR3068398A1 (fr) | 2019-01-04 |
FR3068398B1 (fr) | 2019-08-30 |
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