WO2019197871A1 - Ensemble de guidage et de densificateur de flux d'air pour éolienne à axe vertical ou horizontal - Google Patents

Ensemble de guidage et de densificateur de flux d'air pour éolienne à axe vertical ou horizontal Download PDF

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Publication number
WO2019197871A1
WO2019197871A1 PCT/IB2018/052462 IB2018052462W WO2019197871A1 WO 2019197871 A1 WO2019197871 A1 WO 2019197871A1 IB 2018052462 W IB2018052462 W IB 2018052462W WO 2019197871 A1 WO2019197871 A1 WO 2019197871A1
Authority
WO
WIPO (PCT)
Prior art keywords
air flow
flow guide
assembly
densifier
wind turbine
Prior art date
Application number
PCT/IB2018/052462
Other languages
English (en)
Inventor
Michel Draux
Original Assignee
Turbosaam Sarl
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 Turbosaam Sarl filed Critical Turbosaam Sarl
Priority to PCT/IB2018/052462 priority Critical patent/WO2019197871A1/fr
Publication of WO2019197871A1 publication Critical patent/WO2019197871A1/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
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/02—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having a plurality of rotors
    • 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
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/04—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels
    • 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
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • 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
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/40—Arrangements or methods specially adapted for transporting wind motor components
    • 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
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  the axis being vertical
    • 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
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/02—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having a plurality of rotors
    • 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
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/04—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels
    • 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
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/04—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels
    • F03D3/0427—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels with converging inlets, i.e. the guiding means intercepting an area greater than the effective rotor area
    • 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
    • F05B2220/70—Application in combination with
    • F05B2220/708—Photoelectric means, i.e. photovoltaic or solar cells
    • 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
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/94—Mounting on supporting structures or systems on a movable wheeled structure
    • F05B2240/941—Mounting on supporting structures or systems on a movable wheeled structure which is a land vehicle
    • 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
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • 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
    • Y02E10/70—Wind energy
    • Y02E10/728—Onshore wind turbines
    • 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
    • Y02E10/70—Wind energy
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

Definitions

  • the present invention relates generally to wind turbines, in particular to vertical or horizontal axis wind turbines, and their use in the production of electrical energy.
  • Wind turbine electrical generator systems are well known per se and several commercial products have been, at various times, made available to the market.
  • VAWT or HAWT Vertical or horizontal axis wind turbine installations
  • VAWT or HAWT are generally located in a fixed location on rooftops, or on chimneys, masts, or other fixed structures which have been studied, prior to installation, for their suitability with respect to the predominant wind parameters and air flow at that location. This has necessarily restricted the implementation and widespread adoption of such VAWT or HAWT systems, since they require certain wind and air flow conditions to be met before they can be usefully deployed at any given site.
  • the present invention overcomes the restrictions associated with the implementation of VAWT or HAWT installations and additionally, fulfills a long felt need for versatile deployment of such VAWT or HAWT systems.
  • one object of the present invention is a movable air flow guide and densifier assembly configured and dimensioned to guide and density a flow of air onto and through a wind turbine array structure comprising at least one vertical axis wind turbine (VAWT) or at least one horizontal axis wind turbine (HAWT), said air flow guide and densifier assembly comprising: a substantially upright support structure, defining a first, substantially open, windward face, and a second, substantially open, leeward face, and an inner volume, said inner volume being adapted in size and configuration to house said wind turbine array structure; air flow guide and densifier means, disposed on the windward face of said substantially upright support structure; wherein said air flow guide and densifier means comprise at least one, and preferably a plurality, of interconnected air flow guide walls located about a periphery of the support structure on the windward face and which project outwardly from said periphery; and wherein said substantially upright support structure is mounted on a movable chassis.
  • VAWT vertical axis wind
  • the substantially upright support structure is generally a metallic or wooden frame, comprising a series of parallel spaced substantially upright struts joined together by substantially horizontal crossbars.
  • each strut and each crossbar comprises a tube, such as a metallic tube of circular or square cross-section, wherein the ends of each crossbar are joined to a respective end or, as required or desired, a respective mid-section, of a strut.
  • the struts and crossbars can be joined together by any suitable fixation means that provides the desired structural resistance, rigidity and flexibility.
  • the struts and crossbars are attached to each other via welding or soldering.
  • the struts and crossbars together form a three-dimensional framework, defining a first, substantially open, windward face, and a second, substantially open, leeward face.
  • the leeward and windward faces of the upright support structure or framework also define an inner volume located within the limits of the upright support structure, said inner volume being adapted in size and configuration to house a wind turbine array structure. Consequently, the dimensions and size of the upright support structure are adapted to the size, dimensions and configuration of the wind turbine array structure that it is desired to install.
  • At least one, and preferably a plurality, of interconnected air flow guide walls is located about a periphery of the support structure on the windward face and which project outwardly from said periphery.
  • the periphery of the support structure is either a real or virtual shape generally defined by a continuous or contiguous circuit of interconnected struts and crossbars viewed along a single plane, and in the case above, along a plane corresponding to the windward face.
  • the air flow guide walls extend from the periphery, for example from a strut or crossbar of said windward face, towards a point outwards from said periphery.
  • the air flow guide walls are interconnected, and in general, are connected one to another to form a continuous projecting wall that projects from the windward face outwardly of the support structure.
  • air flow guide and densifier assembly refers to an assembly and means that not only guides airflow over an array of vertical axis wind turbines or horizontal axis wind turbines, but also serves to increase the density of the flow of air through said array. In this way, it becomes possible to maximize the opportunities for air flow usage, and consequently the potential for electrical power generation, by the wind turbine array. Maximization of the potential air flow is obtained in part through a combination of the provision of interconnected air flow guide walls located about a periphery of the support structure on the windward face and which project outwardly from said periphery and providing for the substantially upright support structure to be mounted on a movable chassis.
  • the movable chassis allows for the entire assembly to be moved around, not only from a first location to a separate, second location, distant from said first location, but also allows for the assembly to be moved around a given first location in order to bring the assembly into the direction of the wind and thereby optimize potential electrical generation output.
  • the movable chassis is a vehicle trailer. Whilst this is a preferred embodiment for the assembly, other movable chassis constructions or assemblies would be suitable and appropriate, for example, an autonomous or semi-autonomous movable chassis, such as a robot-driven chassis, or a chassis provided with a drive motor to move the chassis, are also envisaged.
  • an autonomous or semi-autonomous movable chassis such as a robot-driven chassis, or a chassis provided with a drive motor to move the chassis, are also envisaged.
  • the movable chassis is a vehicle trailer having a first towbar, and optionally a second towbar, wherein said first towbar and second optional towbar are located respectively at a first trailer extremity and corresponding diametrally opposed second trailer extremity.
  • a configuration enables flexible positioning of the assembly, allowing a vehicle to move the assembly by hitching said vehicle to the towbar at either extremity of the movable chassis.
  • the movable chassis further comprises a generator connected to the wind turbine array structure.
  • the generator can be chosen from any suitable electrical generator, said generator generally being connected to one or more transmission axles provided by the wind turbine array structure. Where only one generator is present, this will usually be connected to each transmission axle of each turbine via one or more synchronization belts or drive chains.
  • the transmission axle of the wind turbine is responsible for transmitting the rotational energy provided by rotation of wind turbine rotors in the wind turbine array structure to the generator via said one or more synchronization belts or drive chains.
  • more than one generator for example, where a generator is present for each wind turbine, then each turbine and
  • corresponding transmission axle of the wind turbine can be connected either directly, for example, with the transmission axle being mounted in direct rotational connection to the generator, or via respective separate and individual synchronization belts or drive chains.
  • the movable chassis further comprises at least one, or a plurality of, electrical charge storage means, connected to at least one more generators.
  • electrical charge storage means such storage means as are known in the art, for example chargeable batteries, or accumulators, or other similar electrical charge storage systems, are considered suitable and appropriate.
  • the movable chassis further comprises position stabilizing means for stabilizing the position of the movable air flow guide and densifier assembly when stationary.
  • position stabilizing means as used herein is intended to signify means that enable the assembly to be stabilized on the ground once the assembly has been moved into the desired or required position for operation.
  • stabilizing means are commonly used for fixing a movable chassis to a given point with respect to a ground surface, and can include, for example, stabilizing feet, tension wires, positioning wedges, chocks, and the like.
  • the movable chassis further comprises tilting means for imparting one or more angles of tilt relative to a first level position of the chassis to said chassis.
  • level it is to be understood that the assembly is positioned on a given level, for example on the ground, or the surface of a building such as a multi-storey carpark, parking lot, hill, open space, and the like, and that the assembly can be tilted from this first level position to another desired, tilted position, as may be deemed required and/or appropriate depending on the terrain on which the assembly is located, in order to orient the assembly into the appropriate position for optimized suitable air flow guidance and capture.
  • the tilting means can be separate from, or alternatively, an integral part of, the position stabilizing means described above.
  • the position stabilizing means can be adjustable feet, which are located on or attached to the movable chassis and which can project outwardly thereof and be adjustable in height. Depending on the height and the outward distance at which said feet project, the height and tilt of the chassis can thereby be finely adjusted.
  • the tilting means can comprise any other suitable means for imparting an angle of tilt to the movable chassis, such as suitably directed and extendable one or more piston arms attached to the chassis and extending towards the ground.
  • the pistons would extend the arm towards the ground away from the chassis until they met the ground level, and continuous extension of the piston arm would then cause the chassis to tilt to a desired or required angle.
  • the at least a plurality of interconnected air flow guide walls extend radially outwardly from a substantially convergent air outlet extremity attached to the periphery of the support structure on the windward face towards a substantially divergent air inlet extremity.
  • the guide walls are convergent at the periphery of the support structure, and divergent at an outwardly projecting extremity.
  • the at least a plurality of interconnected air flow guide walls form a substantially funnel-shaped projection, said funnel-shaped projection having a first extremity of narrowed cross-section and a second extremity of a cross-section wider than the narrowed cross- section.
  • interconnected air flow guide walls that these are configured and dimensioned to not only guide air flow towards the wind turbine array from an outer, windward facing side of the assembly towards a leeward facing side of the assembly, but also to increase the density of air flow as it moves through the assembly and corresponding wind turbine array structure.
  • the wind turbine array structure comprises a plurality of vertical axis wind turbines, mounted substantially coplanar with both the leeward face and windward face, and also mounted substantially orthogonal to a direction of wind flowing towards, or respectively away from, said respective windward or leeward faces.
  • the wind turbine array structure comprises a plurality of horizontal axis wind turbines, mounted substantially coplanar with the leeward and windward faces, and mounted substantially orthogonal to a direction of wind flowing towards, or respectively away from, said respective windward or leeward faces.
  • said wind turbine arrays are provided as a plurality of wind turbine rotors, mounted on a transmission axle.
  • the transmission axle transmits rotational movement from the rotation of the wind turbine rotor to an appropriate generator system.
  • the transmission axles are mounted vertically within the support structure or horizontally, with each transmission axle in coplanar alignment with the preceding or subsequent transmission axle. Accordingly, the above two embodiments provide for suitable mounting, orientation and positioning of the wind turbine array within the assembly.
  • the substantially upright support structure further comprises at least one stowable wind deflector vane mounted in a hinged relationship to an upright portion of said substantially upright support structure.
  • the deflector vanes are optionally and advantageously provided to deflect incoming air flow onto the wind turbines, and are mounted on hinges so that they can be folded back, or stowed, onto the support structure, as required or desired, to allow air to pass more freely through the wind turbine array structure, or when deployed, to deflect air flow.
  • the deflector vanes are generally arc-shaped, i.e. have a substantially arc-shaped profile that deflects oncoming air flow inwardly toward a corresponding wind turbine.
  • Opposite-facing pairs of deflector vanes are advantageously provided to allow for air flow deflection both from a windward face, and a leeward face of the support structure, in which a deflector vane of each pair is mounted on respectively opposite-facing uprights of the support structure.
  • the plurality of interconnected air flow guide walls is covered at a substantially divergent air inlet extremity by a removable, or openable, protective grill.
  • the grill is provided to advantageously protect the assembly from unwanted or undesired introduction of objects which might be borne on the air flow into the wind turbine array, and which might cause damage thereto, for example branches and the like, but also to protect the wind turbine array from willful damage or vandalism, and intrusion for example by wild animals or birds.
  • the leeward face can also be provided with such a protective grill to also protect that side of the assembly.
  • the protective grill comprises two halves, each half covering a respective half of said substantially divergent air inlet extremity.
  • the leeward face can also advantageously be provided with a grill comprising two halves.
  • the grill either as a single element, or provided in two halves, has suitably dimensioned and configured openings to attain the desired objective, i.e. the openings in the mesh are suitably dimensioned to prevent ingress of objects , animals or birds dependent on the intended location of the assembly during operation.
  • the assembly further comprises at least a first lateral face, a second lateral face, and an upper face, and each of said first and second lateral faces and said upper face is substantially covered by a covering to form a roof, and respective side panels for said assembly.
  • a roof and sides to the assembly provides for more general protection of the various moving parts of the assembly from the elements, such as precipitation like rain, snow, sleet, hail and the like.
  • the covering is advantageously selected from one or more solar panels, wooden panelling resembling a wooden shack, shiplap, and camouflage, to form a roof, and respective side panels for said assembly.
  • solar panels these can advantageously be mounted on, or form part of the roof covering of the assembly, and can also optionally, and advantageously, be connected to the means for storage of an electrical charge to provide extra electrical power generation capacity in the event of insufficient air flow or wind to power the wind turbine array.
  • Figure 1 is a schematic representation of a windward face perspective view of an assembly according to the invention
  • Figure 2 is a schematic representation of a leeward face perspective view of an assembly according to the invention.
  • Figure 3 is a schematic representation of a windward face perspective view of an assembly with coverings according to the invention.
  • Figure 4 is a schematic representation of a simplified cross-section of interconnected air flow guide walls and wind turbine array of the assembly according to the invention.
  • the assembly (1) comprises a wind turbine array structure (2) comprising at least one vertical axis wind turbine (VAWT) (3, 3A, 3B) or at least one horizontal axis wind turbine (HAWT).
  • VAWT vertical axis wind turbine
  • HAWT horizontal axis wind turbine
  • the assembly further comprises a substantially upright support structure (4), defining a first, substantially open, windward face (5), and a second, substantially open, leeward face (6), and an inner volume (7), the inner volume (7) being adapted in size and configuration to house the wind turbine array structure (2).
  • the substantially upright support structure is made of tubular metal, for example, steel, or optionally a correspondingly robust and resistant alloy or even a suitable high impact plastics material, although steel is generally preferred.
  • the substantially upright support structure is comprised of
  • windward and leeward faces (5, 6) are represented by the planes formed by the dashed lines in Figure 4.
  • the wind turbine array structure (2) is illustrated schematically in Figure 2. It is mounted within, and occupies substantially all of, the inner volume (7).
  • the wind turbine array structure (2) comprises three vertical axis wind turbines, in substantially parallel and coplanar alignment with said windward (5) and leeward (6) faces.
  • Each turbine is mounted on a threaded transmission axle and is held in place at a respective top and bottom of the upright support structure by a corresponding screw threaded nut which is threaded onto the threaded rod and which seats against a cover plate located between, and fixed to, respective top and bottom sets of crossbars.
  • the transmission axle pierces through the top and bottom cover plates, and the threaded nut screws onto the threaded rod of the transmission axle to lock against said respective top and bottom cover plates.
  • a further threaded nut can be provided on the underside of the top cover plate, and on the top side of the bottom cover plate, to hold said plates in a predetermined position with respect to the threaded rod, which is configured to be allowed to rotate freely, for example via respective bearings, provided within the respective top and bottom cover plates.
  • the free rotation of the threaded rod of the transmission axle allows for rotational force generated by movement of the wind turbine rotors, which are in a fixed relationship to said transmission axle, and in response to air flow through and over said rotors, to be directly transmitted to the transmission axle.
  • the assembly can also be configured to contain a horizontal wind turbine array structure, in which parallel, spaced apart and coplanar threaded transmission axles would hold corresponding wind turbine rotors, and instead of top and bottom cover plates, said transmission axles would be located through respective lateral cover plates.
  • Figures 1 and 2 also show air flow guide and densifier means (8), disposed on the windward face of the support structure, said air flow guide and densifier means (8) comprising at least one, and preferably a plurality, of interconnected air flow guide walls (9, 10, 11, 12) located about a periphery (9 A, 10A, 11A, 12A) of the support structure (4) on the windward face (5) and which project outwardly from said periphery (9A, 10A, 11 A, 12 A).
  • the aim of the interconnected air flow guide walls (9, 10, 11,12) is to guide an air flow coming onto the assembly and density said air flow onto the wind turbine array structure (2).
  • the interconnected walls (9, 10, 11,12) extend outwardly from the periphery (9 A, 10A, 11A, 12A) of the upright support structure towards an exterior.
  • the general shape and configuration of the interconnected walls (9, 10, 11,12) is such that said walls extend radially outwardly from a substantially convergent air outlet extremity (21) attached to said periphery (9 A, 10A, 11A, 12A) towards a substantially divergent air inlet extremity (22).
  • the interconnected air flow guide walls (9, 10, 11, 12) form a substantially funnel-shaped projection, said funnel-shaped projection having a first extremity of narrowed cross-section and a second extremity, distant from said first extremity, of a cross- section wider than the narrowed cross-section.
  • the upright support structure (4) further comprises at least one stowable wind deflector vane (23, 24) mounted in a hinged relationship to an upright portion of said substantially upright support structure, as illustrated in Figure 4. These are designed so that they can deflect air flow when deployed, and not obstruct air flow when stowed away, e.g. by rotating the vanes against the upright support through a pivoting movement of the respective hinge mounts.
  • said deflector vanes form a pair of opposing oriented, and opposing mounted vanes (23, 24), each vane when deployed facing substantially in a direction that is different and opposed to, the corresponding respective vane of the pair of vanes.
  • air flow, or wind arrives substantially
  • deflector vane (23) deflects air flow onto a wind turbine increasing the corresponding air pressure at the surface of the wind turbine rotor, thereby increasing an imparted rotational speed to said rotor.
  • deflector vane (24) located on the leeward side of the assembly, creates an air flow that causes a depression which increases air flow speed away from the wind turbine, thus reducing drag resistance and optimizing the energy imparted to the wind turbine rotor.
  • air flow that impinges on the interconnected air guide walls (9, 10, 11,12) is directed in a converging manner (31, 32) towards the wind turbine array structure (2).
  • This also increases air flow density over and through the wind turbines (3, 3A, 3B), allowing the assembly to function under extremely low wind speeds, even in such low windspeed conditions that operation of a wind turbine would normally be ruled out as being mechanically or energetically ineffective.
  • FIGS 1 and 3 illustrate a configuration of the assembly in which the substantially divergent air inlet extremity (22) is covered by a removable, or openable, protective grill (25).
  • the grill comprises two halves (25A, 25B), each half covering a respective half of said substantially divergent air inlet extremity (22).
  • Each half is mounted on hinges (29, 30) located on respective side walls of the interconnected air guide walls, but the protective grill (25) could also be mounted in hinged attachment to an upper and lower air guide wall instead.
  • a similar grill could also be provided, and mounted on, the leeward face of the upright support structure if so desired and in a similar manner instead of as shown in Figures 1 and 3.
  • Figure 3 also illustrates a further possible configuration of the assembly in which the assembly (1) comprises at least a first lateral face (26), a second lateral face (27), and an upper face (28), and each of said first and second lateral faces (26, 27) and said upper face (28) is substantially covered by a covering to form a roof, and respective side panels for said assembly.
  • the covering is selected from one or more solar panels, wooden panelling, shiplap, and camouflage, to form a roof, and respective side panels for said assembly.
  • the upper face (28) is covered with a roof covering, for example, galvanized metal sheeting having ridges and troughs, of the type known and used to provide roofing for industrial buildings.
  • the lateral faces are covered with wooden panelling, or a covering that resembles wooden panelling, with optional provision for an access door (33) in at least one lateral face (27) in order to allow access to the assembly behind the covering for maintenance and turbine configuration purposes.
  • the assembly is configured to optimize air flow usage and increase the variety of situations in which a VAWT or HAWT system can be implemented, other than just being attached fixedly to a building or mast structure.
  • the substantially upright support structure (4) of the assembly is mounted on a movable chassis (13).
  • the movable chassis is a vehicle trailer.
  • the movable chassis is a vehicle trailer having a first towbar (14) and an optional second towbar (14A), wherein said first towbar (14) and second optional towbar (14A) are located respectively at a first trailer extremity (15) and a corresponding diametrally opposed second trailer extremity (15A).
  • the trailer comprises a basic chassis framework, at least one load-bearing axle (34) and wheels (35, 36) mounted rotatingly with the axle (34). Movement of the trailer into a corresponding desired or required position as a function of wind direction and exposure can thus be readily achieved, simply by either hitching one of the towbars (14, 14A) up to a vehicle and repositioning it via maneuvering of the vehicle, or else by manual maneuvering of the trailer (13).
  • FIG. 2 shows another aspect of the assembly of the present invention.
  • the movable chassis (13) comprises a generator (16) connected to the wind turbine array structure (2).
  • the generator is used to generate an electric charge from the movement imparted to it via rotation of the transmission axle of the wind turbine array, whereby said rotational movement can either be directly coupled to the generator, or else connected thereto by one or more synchronization belts or drive chains.
  • the generator is in turn connected to at least one, or a plurality of, electrical charge storage means, such as rechargeable batteries or accumulators, in order to store the generated electrical charge for later use.
  • the lateral (26, 27) faces and/or upper face (28) are covered at least partly in solar panels, the electrical energy generated by said solar panel covering can also be advantageously stored in said electrical charge storage means.
  • Figures 1 and 2 also show that the movable chassis (13) further comprises position stabilizing means (17, 18) for stabilizing the position of the movable air flow guide and densifier assembly (1) when stationary.
  • position stabilizing means comprise one or more extendible stabilizing bars or arms (17, 18), for example, made of metal such as steel, that is inserted into a corresponding housing tube(37, 38) provided on the chassis (13) of the assembly.
  • the length of extension of an arm can be adjusted via positioning pings that can be inserted in transverse openings (39, 40) or holes made in the stabilizing bars (17, 18) and also made in the housing tubes (37, 38).
  • Alignment of the holes in the bars with the holes in the housing tubes and pinning therethrough, for example with an appropriately shaped pin, allows for fixing the extension length of any given stabilizing arm.
  • the pin can be removed and the arm (17, 18) inserted completely into the housing tubing (37, 38) and stowed therein.
  • An outward extremity of the extendible stabilizing bar or arm (17, 18) is fitted with a supporting foot, said foot being optionally provided with adjustable height setting means allowing the height of the foot from said extendible arm or bar to be adjusted such that the foot comes into contact with a surface level on which the assembly is positioned and thereby stabilizes the assembly.
  • the adjustable height means can for example, be an adjustable piston, or a crick-activated jack, or even something as simple as an adjustable height jockey wheel.
  • the movable chassis (13) further also usefully comprises tilting means (19, 20) for imparting one or more angles of tilt relative to a level to said chassis (13).
  • the tilting means can be identical to, or separate from, the adjustable height means associated with the position stabilizing means.
  • the foot height could be adjusted to tilt or pitch the assembly away from the normal, i.e. away from the perpendicular to the ground, if that was so desired. In this way, it becomes but a simple matter of adjusting the height of the stabilizing feet to tilt the assembly to an angle of tilt that will optimize air flow through the wind turbine array structure.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)

Abstract

La présente invention concerne un ensemble de guidage et densificateur de flux d'air mobile configuré et dimensionné pour guider et mesurer la densité d'un flux d'air sur et à travers une structure de réseau d'éoliennes comprenant au moins une éolienne à axe vertical ou au moins une éolienne à axe horizontal. Ledit ensemble de guidage et de densificateur de flux d'air comprend : une structure de support sensiblement verticale, définissant une première face sensiblement ouverte, face au vent, et une seconde face sensiblement ouverte, sous le vent, et un volume interne, le volume interne étant adapté en taille et en configuration pour loger ladite structure de réseau d'éoliennes; et des moyens de guidage et de densificateur de flux d'air, disposés sur la face au vent de ladite structure de support sensiblement verticale. Lesdits moyens de guidage et de densificateur de flux d'air comprennent au moins une, et de préférence une pluralité de parois de guidage de flux d'air interconnectées situées autour d'une périphérie de la structure de support sur la face au vent et qui font saillie vers l'extérieur à partir de ladite périphérie; et ladite structure de support sensiblement verticale est montée sur un châssis mobile.
PCT/IB2018/052462 2018-04-09 2018-04-09 Ensemble de guidage et de densificateur de flux d'air pour éolienne à axe vertical ou horizontal WO2019197871A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2018/052462 WO2019197871A1 (fr) 2018-04-09 2018-04-09 Ensemble de guidage et de densificateur de flux d'air pour éolienne à axe vertical ou horizontal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2018/052462 WO2019197871A1 (fr) 2018-04-09 2018-04-09 Ensemble de guidage et de densificateur de flux d'air pour éolienne à axe vertical ou horizontal

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WO2019197871A1 true WO2019197871A1 (fr) 2019-10-17

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011128463A1 (fr) * 2010-04-13 2011-10-20 Tempero 2000 S.L. Centrale énergétique transportable
WO2013110696A1 (fr) * 2012-01-25 2013-08-01 HÖRNIG, Maria Éolienne à effet venturi
US20130287570A1 (en) * 2012-04-26 2013-10-31 Ronald GDOVIC Self-starting savonius wind turbine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011128463A1 (fr) * 2010-04-13 2011-10-20 Tempero 2000 S.L. Centrale énergétique transportable
WO2013110696A1 (fr) * 2012-01-25 2013-08-01 HÖRNIG, Maria Éolienne à effet venturi
US20130287570A1 (en) * 2012-04-26 2013-10-31 Ronald GDOVIC Self-starting savonius wind turbine

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