EP2368033A1 - Turbine à double paroi et à plusieurs rotors annulaires - Google Patents

Turbine à double paroi et à plusieurs rotors annulaires

Info

Publication number
EP2368033A1
EP2368033A1 EP09828483A EP09828483A EP2368033A1 EP 2368033 A1 EP2368033 A1 EP 2368033A1 EP 09828483 A EP09828483 A EP 09828483A EP 09828483 A EP09828483 A EP 09828483A EP 2368033 A1 EP2368033 A1 EP 2368033A1
Authority
EP
European Patent Office
Prior art keywords
turbine
fluid
blades
rotor
directing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP09828483A
Other languages
German (de)
English (en)
Other versions
EP2368033A4 (fr
Inventor
Frédérick CHURCHILL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Organoworld Inc
Original Assignee
Organoworld Inc
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 Organoworld Inc filed Critical Organoworld Inc
Publication of EP2368033A1 publication Critical patent/EP2368033A1/fr
Publication of EP2368033A4 publication Critical patent/EP2368033A4/fr
Withdrawn legal-status Critical Current

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
    • 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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00—Other machines or engines
    • F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • F03B17/061—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially in flow direction
    • 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
    • F03D1/025—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having a plurality of rotors coaxially arranged
    • 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
    • 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
    • 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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • 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
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • 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
    • 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
    • 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 generally relates to both wind and water turbines. More specifically, the present invention relates to an annular multi-rotor double-walled turbine. The present invention also relates to a single rotor cross-flow turbine. To distinguish the additional complexity of the present invention as compared to a standard windmill, the design of the invention is referred to as a Wind Power Plant (WPP).
  • WPP Wind Power Plant
  • HAWT Horizontal-Axis Wind Turbines
  • the two predominant variables are fluid speed and rotor swept area.
  • windmills are placed along coastlines or in areas of wind velocities around 6.0-7.0 m/s and above.
  • the existing HAWT technology cannot produce competitive power unless these two above-mentioned conditions are met.
  • Windmill diameters have increased substantially with the development of synthetic composite materials such as fiberglass, carbon fiber etc.
  • Large HAWT have blade lengths that now exceed 50 meters in length. This long length reflects the fact that the power produced is dependent on the area swept by the blades.
  • Windmills operate using the velocity pressure or simply the velocity of the wind.
  • FIG. 1 illustrates the fact that a HAWT rotor has a high torque area around the periphery and a low torque area in its center. Even if the air stream total pressure has been increased its preferred path will be through the low torque zone in the center of the rotor where little power is produced.
  • a double-walled channel In order for a double-walled channel to be effective, it must be installed around the outer edges of the rotor(s) and the turbine tunnel must continually rotate into the path of the wind. This requires that all elements be mounted on a common structure and that the structure rotates. If an augmentation device, such as a convergent-divergent nozzle, is used to increase the air stream total pressure, it must also be supported on the same structure and rotate with the WPP.
  • an augmentation device such as a convergent-divergent nozzle
  • the channel In the case of axial rotors, the channel is circular.
  • the most efficient and easily built augmentation devices have straight walls. This requires that highly aerodynamic adapters must be installed at the entrance of the channel to convert a straight-walled convergent nozzle to a circular channel. Similarly, the exit from the channel requires an aerodynamic transition from circular to straight-walled nozzle.
  • the purpose of wind augmentation devices is to increase the total pressure of the air stream. In other words, one or both of the velocity pressure or static pressure are increased.
  • entrance configurations such as curved surfaces designed to minimize entrance and discharge friction losses are not an augmentation device for the simple fact that they do not augment either the velocity pressure or static pressure of the air stream.
  • exit configurations designed to minimize exit and discharge friction losses that do not decrease the velocity or static pressure of the fluid stream are not augmentation devices.
  • a technology that addresses the above difficulties would greatly improve turbine efficiency, improve the electrical stability of the production and decrease the production costs for electricity.
  • An object of the present invention is to provide a turbine that satisfies at least one of the above-mentioned needs.
  • annular multi-rotor double-walled turbine comprising: -an outer shroud; -an inner shroud; -a plurality of driveshafts; and
  • each of the plurality of rotors comprising a plurality of turbine blades extending between the inner and outer shrouds, each of the plurality of turbine blades comprising a face, wherein the inner shroud and the outer shroud form a continuous channel for directing a fluid entering the turbine towards the faces of the turbine blades and for directing fluid discharged from a first of the plurality of rotors to the remaining rotors.
  • the present invention also provides an adjustable flow channel area, double- walled, cross-flow turbine comprising:
  • -a vertical or horizontal axis cross-flow rotor comprising a plurality of turbine blades, each of the turbine blades comprising a cylindrical face; -an outer shroud enclosing side portions, a top portion and a bottom portion of a swept area of the rotor;
  • -inner wall actuators for positioning the inner walls relative to a width or height of a fluid channel created by the fluid deflectors, wherein the inner walls and upstream fluid deflectors form a channel for directing the fluid entering the turbine towards the cylindrical faces of the turbine blades and for directing fluid discharged from upstream blades to the cylindrical faces of downstream blades.
  • the present invention also provides an annular double-walled turbine comprising: -an outer shroud; -an inner shroud; -a driveshaft; and
  • the rotor comprising a plurality of turbine blades extending between the inner and outer shrouds, each of the plurality of turbine blades comprising a face, wherein the inner shroud and the outer shroud form a continuous channel for directing a fluid entering the turbine towards the faces of the turbine blades.
  • the present invention generally can be applied to wind turbines that are axial and use a circular annular-shaped rotor and to cross-flow type turbines employing vertical axis blades.
  • the turbines may be augmented or non-augmented.
  • the double-walled configuration is applicable for both windmill and water turbine applications. As water flow for energy production is mostly only unidirectional or bi-directional (tidal application), there is typically no need for the carriage or supporting structure to rotate in water turbine applications.
  • the present invention also provides a WPP that mounts one or multiple turbines in series that share a common, double wall, and ducted wind channel. If an axial flow turbine is used, the ducted channel is round, whereas if a cross-flow turbine is used, the ducted channel is rectangular.
  • the installation of multiple wind turbines on a single tower and the high production capacity of the unit are the justification for calling the invention a WPP.
  • a ducted wind channel greatly improves efficiency of power extraction from all augmented and non-augmented air streams.
  • This continuous channel allows the wind energy to be augmented and then applied successively to a series of one or more rotors.
  • the width of the air channel is equal to the length of the rotor blades.
  • the blades are the only element of the rotor making contact with the augmented air stream.
  • the air stream is applied strictly to the exterior tips of the blades that in turn convert more of the wind energy into useful torque.
  • Almost all existing large commercial windmills are of the Horizontal Axis Wind Turbine (HAWT) configuration and use a three-blade twisted propeller. Although the energy of the wind over the entire face of the blades is constant for a HAWT, the percentage of useful energy converted varies from a maximum at the rotor periphery to a minimum near the root of the blades.
  • the entire wind turbine can be mounted on one common carriage that is motorized to face the prevailing winds and the carriage sits on one tower.
  • the motorized carriage is replaced by a slew bearing or equivalent device for small wind turbines.
  • the circular air channel is fed and discharged through adapters to straight-walled convergent and divergent nozzles.
  • the important economic challenge that is met by this invention is the improvement in the performance by integrating several new and innovative techniques.
  • the performance is improved to the point that winds of lower velocities can now produce competitive electricity.
  • the WPP can be located in urban areas or next to industries where wind velocities are low. As such, the cost for distributing the power and the need for new infrastructure are eliminated.
  • the air or fluid stream with its augmented-energy is directed exclusively to the area of the blades in the high torque zone. No wind or fluid is directed to the low torque zone.
  • An axial turbine configuration of a WPP uses a double-walled annular channel to direct the air stream to the peripheral or high torque zone.
  • a vertical axis configuration of a WPP uses a double-walled channel to direct the airflow to the center of the swept area and away from the two outer edge areas.
  • the fluid stream is directed to the optimum area of the blades to maximize the production of useful torque.
  • the cross-sectional area for the fluid flow can be decreased to further increase the fluid stream velocity once it has left the augmentation device and increased velocity improves power production at the rate of the cube of the increase.
  • the air stream is contained permitting several rotors in series to be used to extract fluid energy. The possible fluid leakage into the low torque zone or back to atmosphere is negligible. It is possible to adjust the width of the fluid channel. This provides an optimization tool whereby as the fluid speed varies, the cross-section is automatically adjusted to hold the fluid stream velocity constant.
  • a circular deflector is installed directly upstream of the rotor facing the wind.
  • This deflector can be of many shapes including semicircular, conical, parabolic, etc. but it must have an aerodynamic shape to distribute the fluid evenly with minimal friction losses.
  • An augmentation device takes a fluid of low energy density and increases the energy density.
  • the WPP design can optimize the power extraction from augmented air streams.
  • a WPP uses much smaller turbine rotors and the rotors can be installed in series.
  • the energy produced per area of swept area is now many times that of an existing HAWT or Vertical Axis Wind Turbine (VAWT).
  • VAWT Vertical Axis Wind Turbine
  • the number of towers required for supporting the turbines and the environmental footprint are decreased.
  • the blades of a WPP are enclosed and there are no obstacles in the path of the air stream, before or after it makes contact with the blades. This eliminates the noisy woof created by large propeller-type rotors as they pass in front of the mast.
  • the non-productive parts of the rotor and the electrical generator are now completely isolated from the air stream. Parasitic drag losses are minimized.
  • Figure 1 is a schematic view of the zones (sectors) of low and high torques on the swept area of an axial flow turbine.
  • Figure 2 is a schematic view illustrating zones (sectors) of low and high torques on the swept area of a cross-flow turbine using airfoil blades.
  • Figures 3A to 3C are side, front and rear views respectively of a turbine installed on a steel or concrete tower according to a preferred embodiment of the present invention.
  • Figures 4A to 4C are side and detailed views respectively of the turbine shown in Figures 3A to 3C illustrating the rotation of the turbine by a slew bearing.
  • Figures 5A to 5C are side, front and rear views respectively illustrating the tunnel, the entrance and exit adapters of the turbine shown in Figures 3A to 3C.
  • Figure 6 is a perspective view illustrating the integrated structure and support for the tunnel, the cross beam of a convergent divergent nozzle and the frame of the convergent divergent nozzle of the turbine shown in Figures 3A to 3C.
  • Figures 7A to 7E are three perspective, a section and a detailed view respectively illustrating the interior wall, exterior wall, liners and liner actuators of the turbine shown in Figures 3A to 3C.
  • Figure 8 is a side view illustrating the positioning of three rotors, three generators and a semi-circular deflecting cone within the turbine shown in Figures 3A to 3C.
  • Figures 9A to 9F are perspective, top, front and three detailed views illustrating the rotation of the carriage structure by motorized wheels of the turbine shown in Figures 3A to 3C.
  • Figure 10 is a side cut view illustrating an electrical generator driven by a rotor at both ends and a pony motor of the turbine shown in Figures 3A to 3C.
  • Figure 11 is a perspective view of a single rotor cross-flow or Vertical Axis Wind Turbine and its air stream channel centered on the vertical rotor shaft according to another embodiment of the present invention.
  • Figure 12 is a graph showing Channelling Ratio (CR) versus Power Output for a HAWT.
  • Figure 13 is a graph showing Channelling Ratio (CR) versus Power Output for a VAWT.
  • annular multi-rotor double-walled turbine 70 As shown in Figures 3 to 10 and as better shown in Figures 7A to 8, according to the present invention, there is provided an annular multi-rotor double-walled turbine 70.
  • the turbine 70 includes an outer shroud 17, an inner shroud 32, and a plurality of driveshafts 80, 82, 84 (shown in Figure 8).
  • the turbine 70 also includes a plurality of rotors 72 coaxially attached to the plurality of driveshafts 80, 82, 84 at spaced intervals.
  • Each of the plurality of rotors 72 comprises a plurality of turbine blades 74 extending between the inner 32 and outer 17 shrouds .
  • Each of the plurality of turbine blades 74 comprises a face.
  • the inner shroud 32 and the outer shroud 17 form a continuous channel for directing a fluid entering the turbine 70 towards the faces of the turbine blades 74 and for directing fluid discharged from a first of the plurality of rotors 76 to the remaining rotors.
  • the channel greatly improves efficiency of power extraction from all augmented and non-augmented fluid streams.
  • the turbine 70 further comprises an adjustable inner shroud liner 20 and an actuating system 22 for displacement of the adjustable inner shroud liner 20 with respect to a face of the inner shroud 32.
  • the turbine 70 further comprises an inlet and a converging nozzle 15 for directing and accelerating fluid towards the inlet of the turbine.
  • the turbine 70 further comprises an outlet and a diverging nozzle 14 for directing and decelerating fluid discharged from the outlet of the turbine.
  • the turbine further comprises a support structure 10 fixed over the outer shroud 17 and connected to the converging nozzle 15 and the diverging nozzle 14, the support structure partly supporting a weight of the converging nozzle 15 and the diverging nozzle 14.
  • the turbine 70 further comprises a turbine base structure 40 and a turbine rotation system 42 for rotating the turbine base structure to align the driveshafts with an incoming direction of the fluid entering the turbine.
  • the turbine further comprises a fluid velocity measurement system located upstream of the turbine and producing a signal indicative of fluid velocity entering the turbine.
  • the actuating system displaces the adjustable overlapping inner shroud liner 20 with respect to the face of the inner shroud 32 based on the signal indicative of fluid velocity entering the turbine.
  • the expansion of the inner liner shroud is permitted by sliding connections between the inner liner segments 21.
  • the turbine 70 further comprises a directing system 18 mounted upstream of the inner shroud 32 and over the inner shroud 32 for directing fluid entering the turbine towards the plurality of turbine blades 74 of the first of the plurality of rotors 76.
  • a directing system 18 mounted upstream of the inner shroud 32 and over the inner shroud 32 for directing fluid entering the turbine towards the plurality of turbine blades 74 of the first of the plurality of rotors 76.
  • the turbine further comprises a compressor fan positioned upstream of the turbine and increasing velocity of the fluid entering the turbine.
  • the fluid is air or water.
  • the turbine blades are preferably hollow, perforated and connected to a vacuum system for controlling boundary layers in proximity of the turbine blades. In another embodiment of the present invention, the turbine blades are preferably hollow, perforated and connected to a pressurized fluid supply system for controlling boundary layers in proximity of said turbine blades.
  • a double wall channelled WPP that easily permits the application of an augmented air stream to the high torque region of rotor(s) for use with at least one or a series of turbine rotors to increase the performance of the turbine rotors
  • the double-walled channelled WPP comprising: a) inner and outer channel walls and framing that direct the air stream to the high torque region of the rotor; b) an actuated inner wall liner that permits the adjustment of the width of the channel with the nominal air speed; c) a radius of the inner channel wall equal to the radius drawn by the inner rim or shroud that supports one end of the blade, and a radius of the outer channel wall equal to the radius drawn by the outer rim or shroud that supports the outside end of the blades; d) a measurement device for the upstream wind velocity of the turbine rotors and a programmable controller to adjust the width of the augmented air stream channel; e) an adapter between the channel entrance and the upstream
  • the width of the channel is equal to the length of the bladed section of the rotor.
  • the WPP can accommodate the installation of one or more turbine rotors in series and one or more rotors per generator.
  • the unit and the augmentation apparatus are supported on a common rotating structure.
  • the WPP isolates the low-torque zone of the rotor and the electrical generator from the wind stream.
  • the width of the channel can be adjusted based on the variation of upstream wind speed.
  • the WPP can accept various configurations of an augmentation apparatus.
  • the WPP creates a measurable increase in air stream augmentation once the area of the deflector over the low-torque zone exceeds 50% of the area swept by the blades.
  • the WPP can produce competitive electricity in areas of low wind velocity by integrating the techniques of wind augmentation, rotor sectoring and using annular rotors.
  • the WPP uses a double wall round channel for HAWT applications and a double wall rectangular channel for VAWT applications.
  • the WPP can use slew bearings for the rotation of small units and an innovative motorized carriage traveling on a platform for large units.
  • the WPP can be used in generating electrical power from both wind and water flows.
  • the aforesaid and other objectives of the present invention are realized by generally integrating into a WPP a double-walled channel accommodating the use of several turbine rotors in series and several generators into one operating unit.
  • the WPP comprises a double-walled channel, multiple rotors, multiple generators, a carriage rotating apparatus and an air stream distribution mechanism.
  • a wind augmentation apparatus and a sectoring apparatus may be integrated into the wind turbine operation.
  • the use of the aforementioned is not necessary to obtain the patent objectives or claims.
  • the double-walled channel consists of an outer wall, an inner wall, an inner liner and a set of actuators to deploy or retract the inner liner.
  • a circular frame supports the outer wall that has a smooth inner face.
  • a second circular frame supports the inner wall that has a smooth outer surface. These frames are supported by the carriage structure.
  • the inner wall supports the liner and the liner actuators that are mounted on the inside face of the inner wall.
  • the inner liner is not essential to the successful operation. Its intent is to reduce expansion and contraction losses as the air stream progresses from rotor to rotor.
  • An alternative solution would be to install actuated deflector plates upstream and downstream of each rotor. As the wind velocity varied the actuator plates would deploy or retract to keep the airspeed to the blades constant.
  • the air stream distribution mechanism consisting of a deflector mounted on the shaft of the rotor facing the wind to direct the air stream equally over the area of the channel, a deflector at the exit from the channel to minimize air pressure recovery losses, an adapter upstream to convert from a straight walled convergent to a circular tunnel and an adapter at the exit to convert from a circular tunnel to a straight walled divergent.
  • the multiple rotor bases and generator bases are mounted on an equipment floor located along the centerline of the axis of the wind channel.
  • One rotor may drive one generator or several rotors may drive one generator.
  • the equipment floor is supported by the rotating carriage structure.
  • the rotating carriage structure consists of a structure capable of supporting the weight of all equipment and a mechanism able to rotate the structure around a central axis.
  • a standard slew bearing device is sufficient to support the weight.
  • the weight of all the equipment is transferred to a concrete platform that sits atop a tower.
  • the carriage structure sits on motorized wheels and a centrally located bearing. The bearing absorbs the lateral thrust, whereas the motorized wheels rotate the unit.
  • the double-walled channelled WPP is equipped with an augmentation apparatus to increase the total pressure of the air stream well above the total pressure of the nominal wind.
  • This WPP will work satisfactorily with many configurations of augmentation apparatus using convergent and divergent or only divergent and is not limited to operating with the augmentation apparatus illustrated. Nor is it limited to the use of a HAWT.
  • the double wall, channelled WPP may employ cross-flow or vertical turbines.
  • a compressor fan blade with motorized drive is installed on the end of the shaft of the rotor facing the wind direction. This fan serves to increase the total energy of the air stream as it enters the channel.
  • This embodiment is not essential to the operation or performance of the WPP. Its use will be determined on an application-by-application basis.
  • a sectoring apparatus is added to the rotor and in another an augmentation device is added.
  • the augmentation device may be simply by divergent or by a combination of convergent and divergent nozzles.
  • WT Perf uses blade-element momentum (BEM) theory to predict the performance of HAWT. It was developed at the National Renewable Energy Laboratory (NREL) from the code PROP, originally set up by Oregon State University decades ago. The staff at the National Wind Technology Center from the National Renewable Energy Laboratory, USA, has recently modernized PROP by adding new functionalities developed into the current WT Perf.
  • BEM blade-element momentum
  • CARDAAV is a computer code developed by Ion Paraschivoiu for the prediction of the aerodynamic qualities and the performances of the vertical axis wind turbines.
  • CARDAAV is based on the Double-Multiple-Streamtube model with variable upwind- and downwind-induced velocities in each streamtube (DMSV). Due to this model and to a quite large number of options regarding the geometrical configuration, the operational conditions and the control of the simulation process, CARDAAV proves to be an efficient software package, appropriate for the needs of VAWT designers. It computes the aerodynamic forces and power output for VAWTs of arbitrary geometry at given operational conditions.
  • VAWT The numerous parameters that are necessary to fully describe the analyzed VAWT provide a rather large freedom in specifying its geometry. Among the most important in this category are: the rotor height and diameter, the number of blades and the type of airfoil defining their cross-section, the diameter of the central column (tower), the size and position of the struts, the size of the spoilers, etc. Virtually any blade shape can be analyzed, including, of course, the straight one. Moreover, the blade can be made of segments having different chord lengths and cross-sections (airfoils).
  • the airfoil data-base of the code includes some of the well known symmetrical NACA shapes (NACA 0012, NACA 0015, NACA 0018, NACA 0021 ) as well as several of those specially designed for VAWTs at Sandia National Laboratories (SNLA 0015, SNLA 0018, SNLA 0021 ). If the user wants to perform the analysis with an airfoil that is not among those already available, this can be done quite simply, by including the values of its experimentally determined lift and drag coefficients in the actual airfoil data base. These data must be given for several Reynolds numbers that correspond to those attained on the revolving blades and cover (at each Re) the full 360° range for the angle of incidence (0° ⁇ ⁇ ⁇ 360°).
  • the code requires the number of half cycle (azimuthal) divisions and vertical divisions which define the total number of stream tubes that are going to be considered in the computations as well as the number of integration points over the width of each tube.
  • the user has to specify the maximum number of iterations in the computation of the upwind and downwind interference factors along with the convergence criteria (relative error levels that must be satisfied when computing the interference factors and the dynamic stall).
  • the decision on whether to apply or not the aerodynamic corrections related to the blade-tip effects and those due to the occurrence of the dynamic stall must be taken when the control parameters are specified.
  • Four dynamic stall models are available, three derived from Gormont's method and the "indicial" model.
  • CARDAAV Running under the Microsoft Windows environment, CARDAAV is user-friendly, being provided with a graphical interface so that all the input data that need to be frequently changed for a comprehensive performance analysis (rotor geometry, operational and control parameters) is easily modified.
  • the local induced velocities, Reynolds number and angle of attack, the blade loads and the azimuthal torque and power coefficients are the output data.
  • Figure 1 shows the relative high torque and low torque zones for a HAWT turbine. The closer longer the distance from the rotating axis the higher the torque produced.
  • Figure 2 shows the high and low torque zones for a VAWT.
  • the two outer edges of the rectangle formed by the swept area produce less torque than the middle section.
  • Figure 3 shows a WPP installed on a standard pre-cast concrete or fabricated steel tower 1 and uses a standard slew bearing for rotation into the wind.
  • the principal sections of the WPP besides the turbine tunnel 2 include the inlet adapter, the semi-circular sectoring deflector covering the low torque zone of the rotor, the inner and outer walls of the air stream channel, the rotor(s), the electrical generator(s), the exit deflector over the low torque zone facing downwind, the exit adapter, the structure supporting the aforementioned equipment and the rotating device that keeps the sectoring deflector facing the wind.
  • Figure 4 is an elevation view of a WPP, equipped with an air stream augmentation device, and installed on a tower platform 1 using a slew bearing for rotation.
  • the base of the WPP 4 sits on the slew bearing upper race 3.
  • the motorized gears 5 rotate the WPP.
  • a convergent and divergent are used to increase the total pressure of the air stream to the WPP.
  • the augmentation device is supported from the structure of the WPP and as such both the WPP and augmentation apparatus turn on a common slew bearing.
  • Figure 5 shows an elevation of the air stream tunnel, the entrance adapter 6 and exit adapter 7.
  • Figure 6 illustrates the integrated structure for all the components of an augmented WPP.
  • the carriage support structure 8 the air channel horizontal and circular members 9, the cross beam support columns 10, the cross beam 11 , convergent tension cables 12, divergent tension cables 13, divergent nozzle 14, convergent nozzle 15.
  • Figure 7 illustrates the double wall channel consisting of an inner shroud 32, outer shroud 17, interior inner shroud liner 20 and liner actuators 22.
  • the wall liner actuators are mounted on the interior face of the interior channel wall. As such they are not in contact with the air stream and can be serviced from the generator room.
  • the liner actuators deploy and retract the wall liner to adjust the inner radius of the channel.
  • a programmable controller and upstream wind velocity measurement control the positioning of the liner actuators.
  • the wind measuring devices are located at the entrance to the convergent. Given the time for the air to reach the blades the wall liner is adjusted before the change in wind velocity reaches the deflector.
  • TSR Tip Speed Ratio
  • the rotor enters into the channel formed by the inside and outside channel walls.
  • Two circular shrouds 19 are installed on the rotor at the same radius as the inside shroud and outside shroud.
  • the inside shroud serves as a barrier to prevent the augmented air stream from discharging into the generator room.
  • Detail A in Figure 7E illustrates the sideways movement of the overlapping liner segments 21 as the actuators extend the liners into the air stream.
  • Figure 7 also illustrates a semi-circular directing system 18 covering the low torque zone of the rotor.
  • This deflector is important as it acts as an augmentation device. Once the surface area of the deflector exceeds that of the swept area of the rotor it slowly begins to augment the total pressure of the air stream. The effect is provided whether the WPP is augmented or non-augmented.
  • the enclosure created inside the inner channel wall becomes the generator room. It may be pressurized for air quality considerations and this will also limit leakage from the augmented air stream channel into the generator room.
  • Figure 8 illustrates a typical generator room layout for one set of rotor-generator.
  • One or more sets of rotor-generator can be installed in series. As shown, two rotors 19 direct-drive one main generator 33.
  • FIG. 9 shows an innovative carriage structure 90 with motorized wheels.
  • Very large WPP's contain multiple turbines and generators.
  • the weight and bending moments of the WPP and augmentation apparatus are transferred to the wheels 24 of the carriage.
  • the preferred tower design is multiple columns rather than the standard central steel or concrete tapered cylindrical tower.
  • Figure 10 shows a synchronous electrical generator and rotor assembly for a double-wall channelled turbine having an annular shroud 1008 and a hub ring
  • Rotors 1000 attached to both ends drive the generator 1040.
  • a rotor may include several stages of blades 1006. In this event, several sets of spokes protrude from the same rotor hub at different angles to the vertical.
  • Another advantage of the present invention is that the configuration of the turbine allows isolation and separation of the turbine from the fluid stream.
  • a second much smaller pony generator 1040 is driven by a drive 1042 off one of the shafts of the generator. This drive is connected to a two-speed speed increaser.
  • This pony generator is set to turn at one design speed that is in relation to the speed of the rotor shaft. However in very low winds the speed of turbine rotor is decreased to approximately 50% of its nominal operating speed. The second speed range of the speed reducer will be engaged to keep the pony generator at its rated speed. At the low wind speeds the field will be removed from the main synchronous generator and only the pony generator will operate. At very high wind speeds the main generator will exceed its maximum power. At this point the pony generator will again become operational using the second speed ratio and now operates in parallel with the main generator. The contribution of the pony motor at high wind speeds is to increase the maximum peak power produced. Many different forms and configurations of augmentation device can be used with the WPP.
  • the role of the augmentation device is to maximize the total pressure of the air stream travelling through the turbine blades.
  • One role of the WPP is to use double wall channels to apply the air stream to the sector of the rotor(s) that will generate the most electrical power.
  • the WPP also provides a common structure and rotating mechanism for all components and a possible augmentation device.
  • Figure 11 shows the principle of a WPP for a non-augmented vertical axis or cross-flow turbine 1100. If an augmentation apparatus using a convergent nozzle 1108 was installed, it would connect to the entrance adapter. If an augmentation apparatus using a divergent nozzle 1109 was installed, it would connect to the exit adapter.
  • the present invention also provides an adjustable flow channel area, double-walled, cross-flow turbine.
  • the turbine comprises a vertical or horizontal axis cross-flow rotor comprising a plurality of turbine blades, each of the turbine blades comprising a cylindrical face.
  • the turbine also comprises an outer shroud enclosing side portions, a top portion and a bottom portion of a swept area of the rotor, upstream fluid deflectors for adjustably reducing a width or height of the swept area of the rotor, upstream fluid deflector actuators for adjusting a projection of the fluid deflectors into a fluid stream entering the turbine, adjustable inner walls located within a circumference of the cylindrical faces of the turbine blades and inner wall actuators for positioning the inner walls relative to a width or height of a fluid channel created by the fluid deflectors.
  • the inner walls and upstream fluid deflectors form a channel for directing the fluid entering the turbine towards the cylindrical faces of the turbine blades and for directing fluid discharged from upstream blades to the cylindrical faces of downstream blades.
  • the turbine further comprises downstream fluid deflectors and downstream fluid deflector actuators for providing a less turbulent transition for the fluid leaving the channel created by the inner or double walls and expanding towards the fixed outer walls.
  • the vertical axis WPP unit consists of an entrance and exit adapter, the outer wall 1110 and the adjustable inner wall 1103, the inner wall actuators 1107, the upstream fluid deflectors 1104, the upstream fluid deflector actuators 1106, the downwind fluid deflectors 1105, the downwind fluid deflector actuators, the rotor assembly 1101 , the rotor blades 1102, the upstream fluid speed measurement, the frame used to hold all the components in place, a slew bearing rotating mechanism and a steel framed tower.
  • the flow is in a canal rather than a channel.
  • the second or inner wall serves to reduce the width of the canal.
  • the height remains constant as the top and bottom walls have a standard continuous surface.
  • a single non-augmented HAWT rotor was equipped with a double wall channelling mechanism by computer simulation. Wind velocities were varied and the results compared with an identical HAWT operating without double wall channelling.
  • a computer-simulated experiment was performed to compare the performance of the WPP concept using a double-walled channel and a standard HAWT rotor.
  • the Channelling Ratio (CR) or the ratio of the area of the flow channel to the swept area of the rotor blades was varied from 1.0 to .25 at three different wind speeds in a shrouded, non-augmented HAWT turbine.
  • a Channelling Ratio of 1.0 implies the flow channel area equals the swept area of the rotor blades.
  • Channelling Ratio of 0.25 implies only the outer 25% of the swept area is receiving wind. At the three wind velocities the increase in performance is illustrated in Table 1 and illustrated as a continuous curve in Figure 12.
  • a single non-augmented VAWT rotor was equipped with a double wall channelling mechanism by computer simulation. Wind velocities were varied and the results compared with an identical VAWT operating without double wall channelling.
  • Ratio (CR) or the ratio of the area of the flow channel to the swept area of the rotor blades was varied from 1.0 to 0.67 at three different wind speeds in a shrouded, non-augmented VAWT turbine.
  • a Channelling Ratio (CR) of 1.0 implies the flow channel area equals the swept area of the rotor blades.
  • a channelling ratio of 0.67 implies only the inner 67% of the swept area is receiving wind. At the three wind velocities the increase in performance is illustrated in Table 2 and illustrated as a continuous curve in Figure 13.
  • the parameters of the double-wall channelled wind turbine may differ from the examples shown in this document.
  • the mechanism for adjusting the inner lining, the configuration of the deflector over the low torque area, the philosophy of control may differ based on the fluids, operating conditions and turbine apparatus.

Landscapes

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

Abstract

L'invention porte sur une turbine à double paroi à un seul ou à plusieurs rotors annulaires. La turbine comprend une enveloppe externe, une enveloppe interne et une pluralité d'arbres d'entraînement. La turbine comprend également une pluralité de rotors fixés de manière coaxiale à la pluralité d'arbres d'entraînement à des intervalles espacés. Chacun de la pluralité de rotors comprend une pluralité d'aubes de turbine s'étendant entre les enveloppes interne et externe. Chacune de la pluralité d'aubes de turbine comprend une face. L'enveloppe interne et l'enveloppe externe forment un canal continu pour diriger un fluide entrant dans la turbine en direction des faces des aubes de turbine et pour diriger du fluide déchargé d'un premier de la pluralité de rotors aux rotors restants. Le canal améliore grandement le rendement d'extraction d'énergie de tous les courants de fluide augmentés et non augmentés.
EP09828483.9A 2008-11-27 2009-11-12 Turbine à double paroi et à plusieurs rotors annulaires Withdrawn EP2368033A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA2645296A CA2645296A1 (fr) 2008-11-27 2008-11-27 Turbine annulaire multirotor a double paroi
PCT/CA2009/001649 WO2010060192A1 (fr) 2008-11-27 2009-11-12 Turbine à double paroi et à plusieurs rotors annulaires

Publications (2)

Publication Number Publication Date
EP2368033A1 true EP2368033A1 (fr) 2011-09-28
EP2368033A4 EP2368033A4 (fr) 2014-01-22

Family

ID=42211995

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09828483.9A Withdrawn EP2368033A4 (fr) 2008-11-27 2009-11-12 Turbine à double paroi et à plusieurs rotors annulaires

Country Status (5)

Country Link
US (1) US20120003077A1 (fr)
EP (1) EP2368033A4 (fr)
CN (1) CN102301128B (fr)
CA (1) CA2645296A1 (fr)
WO (1) WO2010060192A1 (fr)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT510209B1 (de) * 2010-08-04 2012-05-15 Penz Alois Windkraftanlage
AT510207B1 (de) * 2010-08-04 2012-05-15 Penz Alois Windkraftanlage
AT510208B1 (de) * 2010-08-04 2012-05-15 Penz Alois Windkraftanlage
AT509995B1 (de) * 2010-08-04 2012-01-15 Penz Alois Windkraftanlage
WO2012088592A1 (fr) * 2010-12-29 2012-07-05 Organoworld Inc. Turbine hydraulique améliorée dotée de panneaux muraux rétractables et de déflecteurs aérodynamiques
WO2013120198A1 (fr) * 2012-02-13 2013-08-22 Organoworld Inc. Composants de turbine
FR2983255B1 (fr) * 2012-02-24 2013-11-22 Comptoirs D Eole Ensemble aerogenerateur et installation aerogeneratrice comprenant plusieurs tels ensembles aerogenerateurs
GB2500888B (en) * 2012-04-03 2016-09-28 Paunovic Nenad Device for fluids kinetic energy conversion
WO2014062146A1 (fr) * 2012-10-19 2014-04-24 Türker Hakki Procédé et mécanisme augmentant l'efficacité de la conversion d'énergie éolienne par la canalisation du vent
WO2014075089A1 (fr) * 2012-11-09 2014-05-15 Lions Power & Electric, Llc Moteur de prise de force à non-combustion améliorée
JP2016504526A (ja) * 2013-01-12 2016-02-12 セテルネス, ハンスSETERNES, Hans 浮体式風力タービン構造体
RU2520255C1 (ru) * 2013-01-25 2014-06-20 Егор Владимирович Пименов Паровая турбина
WO2014167269A1 (fr) * 2013-04-08 2014-10-16 Eudes VERA Machine à fluide accéléré
KR101442740B1 (ko) * 2013-05-20 2014-09-22 한국해양과학기술원 조류발전용 디퓨져 제어장치
US9835133B2 (en) 2013-08-22 2017-12-05 King Fahd University Of Petroleum And Minerals Electrical power generation system using renewable energy
KR20150043755A (ko) * 2013-10-15 2015-04-23 삼성전자주식회사 전자 장치, 전자 장치의 표시 방법 및 컴퓨터 판독 가능한 기록 매체
FR3021372B1 (fr) * 2014-05-26 2018-04-27 Daniel Jean Pierre Piret Amplificateur de celerite pour fluides
CA2961671A1 (fr) * 2014-09-29 2016-04-07 Stargreen Power Corporation Systeme d'energie avec extraction de co2
CA2893119A1 (fr) * 2015-03-16 2016-09-16 Peter K. O'hagan Eolienne amelioree convenant a une installation sans tour d'eolienne
CN104929859A (zh) * 2015-06-12 2015-09-23 苏州纽东精密制造科技有限公司 一种风动机构
EP3356672A4 (fr) * 2015-10-02 2019-05-22 Agarwal, Subhash Omkarmal Production d'énergie à l'aide du vent
WO2017100951A1 (fr) * 2015-12-18 2017-06-22 Stargreen Power Corporation Système d'énergie éolienne comprenant une structure de canyon
JP6818211B2 (ja) * 2016-08-25 2021-01-20 グエン チー カンパニー リミテッド 風力発電設備
IT201600094513A1 (it) * 2016-09-20 2018-03-20 Giuseppe Minio Turbina eolica
KR102050205B1 (ko) 2018-03-26 2019-11-28 배명순 수력 발전장치
EP3781802A2 (fr) 2018-04-17 2021-02-24 Kayara, Sammy Canalisation du vent pour turbines à gaz
CN108915954B (zh) * 2018-07-11 2019-12-03 徐州科星科技发展有限公司 一种多级串联风力发电装置
US11795906B2 (en) * 2018-10-05 2023-10-24 Organoworld Inc. Powered augmented fluid turbines
AU2020236379B2 (en) 2019-03-08 2023-08-17 Big Moon Power, Inc. Systems and methods for hydro-based electric power generation
HUP1900192A1 (hu) * 2019-05-31 2020-12-28 Magai Istvan Dr Eljárás és berendezés turbinához
US11773736B2 (en) * 2019-10-29 2023-10-03 Organoworld Inc. Segmented augmented turbine assembly
GB2591448B (en) 2020-01-08 2023-05-03 Introfoc Ltd System and method for improving efficiency of vertical axis wind turbines for all wind directions
CN112324602B (zh) * 2020-11-11 2023-08-01 王小雅 一种聚集水能、风能的水平轴旋转体、装置、系统和方法
USD960836S1 (en) 2020-12-17 2022-08-16 David Papini Wind-powered generator
US11585318B2 (en) 2020-12-17 2023-02-21 David Papini Wind-powered generator
GB2602149B (en) * 2020-12-21 2024-07-17 Hart Stephen A wind turbine
CN112648142B (zh) * 2021-01-07 2022-07-12 长江大学 一种混合动力管道加速器
GB2603754B (en) * 2021-02-01 2023-05-10 Verderg Ltd A power generation and/or storage apparatus
US20230009262A1 (en) * 2021-07-07 2023-01-12 Rajat Sood System for harvesting energy from fluids in motion
CN114876737A (zh) * 2022-05-01 2022-08-09 曲阜师范大学 一种风力气轮机
CN115355132B (zh) * 2022-08-24 2023-07-18 中国船舶科学研究中心 一种海上漂浮式二次发电螺旋风机及其发电方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6126385A (en) * 1998-11-10 2000-10-03 Lamont; John S. Wind turbine
EP1233178A2 (fr) * 1999-11-23 2002-08-21 Marrero O'Shanahan, Pedro M. Eolienne a acceleration de flux
US20050082839A1 (en) * 2003-02-20 2005-04-21 Mccoin Dan K. Wind energy conversion system
US20060233635A1 (en) * 2001-06-14 2006-10-19 Selsam Douglas S Stationary co-axial multi-rotor wind turbine supported by continuous central driveshaft
US20060251516A1 (en) * 2005-05-09 2006-11-09 Chester Sohn Wind turbine
US20070013196A1 (en) * 2005-07-14 2007-01-18 Chen Shih H Wind Power Generator
WO2008016584A2 (fr) * 2006-08-01 2008-02-07 Ghosh Dwipen N Éolienne

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986787A (en) * 1974-05-07 1976-10-19 Mouton Jr William J River turbine
CA1109800A (fr) * 1975-07-10 1981-09-29 Oliver C. Eckel Eolienne
DE2715729B2 (de) * 1977-04-07 1979-04-26 Alberto 8131 Berg Kling Rotor für eine Turbine
US4164382A (en) * 1977-07-27 1979-08-14 General Atomic Company Wind driven power apparatus
US4204799A (en) * 1978-07-24 1980-05-27 Geus Arie M De Horizontal wind powered reaction turbine electrical generator
DE2852554C2 (de) * 1978-12-05 1983-01-20 Alberto 8131 Berg Kling Rotor für eine Strömungsmaschine
FR2461831A1 (fr) * 1979-07-18 1981-02-06 Barracho Joaquin Turbine eolienne
DE3043567C2 (de) * 1980-11-15 1982-09-23 Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5000 Köln Anordnung zur Beeinflussung der Strömung an aerodynamischen Profilen
US5332354A (en) * 1993-07-15 1994-07-26 Lamont John S Wind turbine apparatus
CA2460479C (fr) * 2001-09-17 2008-02-26 Clean Current Power Systems Inc. Groupe turbine a eau
US6674181B2 (en) * 2001-12-31 2004-01-06 Charles C. Harbison Wind-driven twin turbine
CN1548714A (zh) * 2003-05-20 2004-11-24 刘晟耀 风力发电系统及其方法
US7293960B2 (en) * 2003-10-23 2007-11-13 Shigeyuki Yamamoto Power generation assemblies, and apparatus for use therewith
JP4487059B2 (ja) * 2004-03-26 2010-06-23 ダンマーク テクニスク ユニバーシテ 風力タービンによって体験される風速および風向を決定する装置および方法
US7214029B2 (en) * 2004-07-01 2007-05-08 Richter Donald L Laminar air turbine
US7172386B2 (en) * 2004-08-05 2007-02-06 Minh-Hoang Dinh Truong Wind and solar power plant with variable high speed rotor trains
CA2481820C (fr) * 2004-09-17 2009-09-01 Clean Current Power Systems Incorporated Augmentation de debit pour turbogeneratrice sous-marine
IL165233A (en) * 2004-11-16 2013-06-27 Israel Hirshberg Energy conversion facility
CN1603613A (zh) * 2004-11-22 2005-04-06 丛洋 风气发动机即采用风力气压取代燃料能源的发动机
US7235893B2 (en) * 2005-04-14 2007-06-26 Platt Michael D Reduced friction wind turbine apparatus and method
CN101297113A (zh) * 2005-08-30 2008-10-29 D·S·塞尔萨姆 连续中央驱动轴支撑的多转子风轮机
WO2007048001A2 (fr) * 2005-10-20 2007-04-26 Reidy Michael T Appareils, systèmes, procédés et améliorations pour exploiter l’énergie éolienne
ES2254037B1 (es) * 2005-12-16 2007-07-16 Joaquin Plana Querol Aerogenerador modular.
DE102006057677A1 (de) * 2006-04-13 2007-10-18 Konstantin Dr.-Ing. Kelaiditis Vorrichtung zur Nutzung von Strömungsenergie
EP2053240B1 (fr) * 2007-10-22 2011-03-30 Actiflow B.V. Éolienne avec contrôle de couche limite

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6126385A (en) * 1998-11-10 2000-10-03 Lamont; John S. Wind turbine
EP1233178A2 (fr) * 1999-11-23 2002-08-21 Marrero O'Shanahan, Pedro M. Eolienne a acceleration de flux
US20060233635A1 (en) * 2001-06-14 2006-10-19 Selsam Douglas S Stationary co-axial multi-rotor wind turbine supported by continuous central driveshaft
US20050082839A1 (en) * 2003-02-20 2005-04-21 Mccoin Dan K. Wind energy conversion system
US20060251516A1 (en) * 2005-05-09 2006-11-09 Chester Sohn Wind turbine
US20070013196A1 (en) * 2005-07-14 2007-01-18 Chen Shih H Wind Power Generator
WO2008016584A2 (fr) * 2006-08-01 2008-02-07 Ghosh Dwipen N Éolienne

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2010060192A1 *

Also Published As

Publication number Publication date
EP2368033A4 (fr) 2014-01-22
CA2645296A1 (fr) 2010-05-27
US20120003077A1 (en) 2012-01-05
WO2010060192A1 (fr) 2010-06-03
CN102301128B (zh) 2014-07-02
CN102301128A (zh) 2011-12-28

Similar Documents

Publication Publication Date Title
US20120003077A1 (en) Annular multi-rotor double-walled turbine
US20120099977A1 (en) Fluid directing system for turbines
EP1834086B1 (fr) Aerogenerateur omnidirectionnel
KR100810990B1 (ko) 제트 휠 방식의 수직축 터빈을 채용한 풍력발전시스템
US9512817B2 (en) Diffuser augmented wind turbines
US8303250B2 (en) Method and apparatus for increasing lift on wind turbine blade
Kiwata et al. Performance of a vertical axis wind turbine with variable-pitch straight blades utilizing a linkage mechanism
US20150300183A1 (en) Fluid Turbine With Turbine Shroud And Ejector Shroud Coupled With High Thrust-Coefficient Rotor
US8221072B2 (en) Ultra high power density wind turbine system
WO2010051647A1 (fr) Rotor axial annulaire pour turbine
US8864455B2 (en) Impulse wind machine
RU2623637C2 (ru) Ветротепловой преобразователь-накопитель
AU2005318921B2 (en) Omni-directional wind turbine
WO2008047991A1 (fr) Système de génération d'énergie éolienne comprenant une turbine à axe vertical équipée d'une roue à jet
Roy et al. Design of Savonius-style wind turbines
CA1095425A (fr) Eoliennes
JAIN Power Generation through the Wind Energy Using Convergent Nozzle

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20110624

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

AX Request for extension of the european patent

Extension state: AL BA RS

A4 Supplementary search report drawn up and despatched

Effective date: 20131219

RIC1 Information provided on ipc code assigned before grant

Ipc: F03B 3/04 20060101ALI20131213BHEP

Ipc: F03D 3/02 20060101ALI20131213BHEP

Ipc: F03D 3/04 20060101ALI20131213BHEP

Ipc: F03B 3/18 20060101ALI20131213BHEP

Ipc: F03D 1/04 20060101AFI20131213BHEP

Ipc: F03B 17/06 20060101ALI20131213BHEP

Ipc: F01D 9/02 20060101ALI20131213BHEP

Ipc: F03D 1/02 20060101ALI20131213BHEP

Ipc: F01D 1/02 20060101ALI20131213BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20140722