WO2011056835A1 - Éolienne radiale à axe horizontal - Google Patents

Éolienne radiale à axe horizontal Download PDF

Info

Publication number
WO2011056835A1
WO2011056835A1 PCT/US2010/055239 US2010055239W WO2011056835A1 WO 2011056835 A1 WO2011056835 A1 WO 2011056835A1 US 2010055239 W US2010055239 W US 2010055239W WO 2011056835 A1 WO2011056835 A1 WO 2011056835A1
Authority
WO
WIPO (PCT)
Prior art keywords
axle
louver
louvers
housing
wind
Prior art date
Application number
PCT/US2010/055239
Other languages
English (en)
Inventor
Frank G. Pringle
Original Assignee
888 Corporation
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 888 Corporation filed Critical 888 Corporation
Priority to EP10829006.5A priority Critical patent/EP2496834A4/fr
Publication of WO2011056835A1 publication Critical patent/WO2011056835A1/fr
Priority to US13/463,146 priority patent/US20130119661A1/en

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
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/002—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  the axis being horizontal
    • 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
    • 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
    • F05B2240/20—Rotors
    • F05B2240/21—Rotors for wind turbines
    • F05B2240/211—Rotors for wind turbines with vertical axis
    • F05B2240/213—Rotors for wind turbines with vertical axis of the Savonius type
    • 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
    • F05B2240/40—Use of a multiplicity of similar components
    • 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
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/911—Mounting on supporting structures or systems on a stationary structure already existing for a prior purpose
    • 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
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/911—Mounting on supporting structures or systems on a stationary structure already existing for a prior purpose
    • F05B2240/9112—Mounting on supporting structures or systems on a stationary structure already existing for a prior purpose which is a building
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/30—Wind power
    • 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 wind turbines for generating electricity from wind and solar energy. More particularly, the present invention relates to horizontal axis radial wind turbines that are adapted to be placed on the apex of a gable roof of a building.
  • Roof-based wind turbines are well known in wind energy industries as generating rotational motion from the wind to produce electricity for use in a building or residence.
  • Conventional roof-based wind turbines are typically configured to be most efficient at high wind speeds, for example, approximately 30 miles per hour.
  • Conventional roof-based turbines may be less efficient at low wind speeds, for example, between zero and 10 miles per hour.
  • Conventional roof-based turbines may also produce excessive vibration, partially because of the high wind speeds necessary to achieve peak efficiency. Excessive vibration may lead to excessive operational noise, which may be a nuisance for a homeowner or neighbors of the homeowner.
  • Conventional roof-based turbines may also be expensive, which may reduce the ability of a conventional turbine to recover the capital expenditure cost with energy savings in a reasonable period of time.
  • Wind turbine and housing combinations comprise a horizontal axis radial wind turbine, the turbine including: an axle; a plurality of blade sections extending radially from the axle, the blade sections circumferentially spaced about the axle, each blade section including a curved drag surface that provides a stall surface normal to the direction of an anticipated wind flow; and a generator operatively coupled to a first end of the axle, the generator adapted to produce electricity when the axle is rotated; and a housing surrounding the turbine, the housing including: a plurality of louvers, each louver coupled to the louver frame, each louver pivotable relative to the housing, each louver capable of having (i) a closed position that prevents wind from entering the housing and (ii) an open position that permits wind to enter the housing; and a motor operatively coupled to the plurality of louvers, the motor adapted to move each louver between the closed position and the open
  • a wind turbine and housing combination comprises a horizontal axis radial wind turbine generator, a housing surrounding the wind turbine generator, the housing comprising a plurality of louvers operably coupled to the housing and capable of being opened and closed in response to wind and temperature conditions, wherein the louvers direct wind currents, thermal air currents, or both to turn the radial wind turbine generator.
  • Methods of harnessing energy from a wind field comprise: attaching a radial wind turbine to an apex of a gable roof of a building; opening one or more of a plurality of louvers coupled to a housing surrounding the turbine by actuating the motor; rotating a plurality of blade sections extending radially from an axle of the turbine, the axle oriented substantially parallel to a longitudinal axis of the apex of the gable roof, the blade sections circumferentially spaced about the axle, each blade section including a curved drag surface that provides a stall surface normal to the direction of wind flow; and producing electricity from the rotation of the plurality of blade sections by driving a generator operatively coupled to a first end of the axle.
  • a method of harnessing energy from wind, thermal currents, or both comprises positioning one or more of a plurality of louvers coupled to a housing surrounding a radial wind turbine generator in response to wind and temperature conditions, directing wind, thermal air currents, or both, through the position of the louvers to rotate a plurality of blade sections extending radially from an axle of the radial wind turbine, and generating electricity from the rotation of the radial wind turbine.
  • Wind turbine systems comprise: a horizontal axis radial wind turbine, the turbine including: an axle; a plurality of blade sections extending radially from the axle, the blade sections circumferentially spaced about the axle, each blade section including a curved drag surface that provides a stall surface normal to the direction of an anticipated wind flow; and a generator operatively coupled to a first end of the axle, the generator adapted to produce electricity when the axle is rotated; a housing surrounding the turbine and adapted to be attached to an apex of a gable roof of a building, the housing including: a plurality of louvers, each louver coupled to the louver frame, each louver pivotable relative to the housing, each louver capable of having (i) a closed position that prevents wind from entering the housing and (ii) an open position that permits wind to enter the housing; and a motor operatively coupled to the plurality of louvers, the motor adapted to move each louver between the closed position and the open position; and the gable roof of
  • FIG. 1 A is a perspective view of a first embodiment wind turbine and housing combination, attached to an apex of a gable roof of a building;
  • FIG. IB is a perspective view of a pair of wind turbine and housing combinations depicted in FIG. 1A, attached to an apex of a gable roof of a building;
  • FIG. 2A is a perspective view of a horizontal axis radial wind turbine and lover frame suitable for use in the wind turbine and housing combination depicted in FIG. 1 A;
  • FIG. 2B is a side view of the wind turbine depicted in FIG. 2A;
  • FIG. 3A is an end view of a second embodiment wind turbine and housing combination, attached to an apex of a gable roof of a building;
  • FIG. 3B is a perspective view of a louver frame and housing roof design suitable for use in the wind turbine and housing combination depicted in FIG. 3A;
  • FIG. 4A is a perspective view of a third embodiment wind turbine and housing combination.
  • FIG. 4B is an end view of the wind turbine and housing combination depicted in FIG. 4A. DETAILED DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS
  • a first embodiment wind turbine and housing combination 10 includes a horizontal axis radial wind turbine 20 and a housing 30 surrounding the turbine 20.
  • the turbine 20 rotates about an axle 21 that is oriented horizontally with respect to the ground.
  • the axle 21 is oriented substantially parallel to a longitudinal axis of an apex 11 of a gable roof 12 of a building.
  • the axle 21 may be oriented non-parallel to the longitudinal axis of the apex 11 of the gable roof 12, for example, if the apex 11 of the gable roof 12 is not substantially parallel to the ground.
  • the turbine 20 includes a generator 14 operatively coupled to a first end of the axle 21.
  • the generator 14 is adapted to produce electricity when the axle 21 is rotated.
  • the generator may be any type of commercially-available generator suitable for use in wind turbines, such as available from Ginlong Technologies (www.ginlong.com). Various types of generators are suitably used and are typically capable of operating up to 400 rpms.
  • the generator is coupled to an electricity delivery line 16 for transmission of the electricity produced to the building to which the combination 10 is attached.
  • the electricity produced by the combination 10 may be sufficient to provide all electrical power to the building, or the electricity produced by the combination 10 may supplement the electricity provided by other means, such as a local utility provider.
  • the turbine 20 may include a first generator 14 operatively coupled to a first end of the axle 21, and the turbine 20 may include a second generator 14 operatively coupled to a second end of the axle 21 opposite the first end of the axle 21.
  • the housing 30 surrounds the turbine 20 and is attached to the roof 12 of a building.
  • the housing 30 includes a louver frame 31, a housing roof 32, housing attachment brackets 33 for coupling the housing 30 to the gable roof 12, and a plurality of louvers 34 each coupled to the louver frame 31 at a pivot 35.
  • the louvers 34 control the flow of air in and out of the housing.
  • louvers 34 are configured to be positioned in such a way so that wind flow and thermal currents may be directed into and out of housing 30 and may be compressed in housing
  • the housing 30 includes twelve louvers 34, six on each side of the housing 30.
  • the twelve louvers 34 include four primary upper louvers 40, four secondary upper louvers 42 located vertically below the primary upper louvers 40, and four lower louvers 44 located vertically below the secondary upper louvers 42 and the turbine 20 and adapted to be positioned adjacent to an exterior surface of the gable roof 12.
  • either the primary upper louvers 40 or the secondary upper louvers 42 may be omitted, such that there is only one set of upper louvers, rather than two sets.
  • FIGS. 4A and 4B In an alternative embodiment, shown in FIGS. 4A and 4B, up to 40 percent of the turbine 20 is below the level of the apex 1 1 of the gable roof 12 of a building.
  • This embodiment may include additional louvers 34 to control the flow of air from the building itself. Air that flows from the building may include hot air that may come from a hot attic or upper portion of the building.
  • the lower set of louvers 144 (shown in FIG. 3 A) are not included and can be located beneath the roof.
  • Each louver 34 is pivotable relative to the louver frame 31 by rotation about the pivot 35. Each pivot 35 extends along a respective louver 34 and is substantially parallel to the axle 21. Each louver 34 is capable of having (i) a closed position that prevents wind from entering the housing 30 and (ii) an open position that permits wind to enter the housing 30 such that the wind can turn the turbine 20. Each louver 34 can be moved or actuated between the closed position and an open position by one or more motors (not shown) that are operatively coupled to each of the plurality of louvers 34.
  • a wind turbine system 10a includes a plurality of wind turbine and housing combinations 10. As shown in FIG. IB, each wind turbine and housing
  • Each wind turbine and housing combination 10 may include a generator 14 operatively coupled to a first end of its axle 21. Each generator 14 may be coupled to one or more electricity delivery lines 16 for transmission of the electricity produced to the building to which the combinations 10 are attached.
  • the louver frame 31 includes one or more compartments 36, each compartment 36 surrounding a portion of the turbine 20. As shown in the figures, the louver frame 31 has two compartments 36, each compartment 36 surrounding approximately half of the turbine 20. In other embodiments, the louver frame 31 may have any number of louver compartments 36, including for example, a single louver compartment 36 surrounding the entire turbine 20, or four louver compartments 36, each louver compartment 36 surrounding approximately one-quarter of the turbine 20.
  • the turbine 20 further includes a plurality of blade sections 22 extending radially from the axle 21.
  • the blade sections 22 are circumferentially spaced about the axle 21, each blade section 22 including a curved drag surface 23 that provides a stall surface normal to the direction of an anticipated wind flow.
  • Each blade section 22 preferably is made from a lightweight fabric, such as nylon.
  • Each blade section 22 may be made from any other material that can be oriented in the desired shape and that is capable of providing a curved drag surface 23 normal to the direction of an anticipated wind flow.
  • Each blade section 22 is formed into a desired shape providing a curved drag surface 23 normal to the direction of an anticipated wind flow by being wrapped around shaping rods 24 that extend between rod anchors 25.
  • Each shaping rod 24 is attached to the rod anchors 25 at either end of each blade section 22.
  • the axle 21 extends between and is attached to the rod anchors 25 at either end of the turbine 20. Additional rod anchors 25 may be attached to the axle 21 in a middle portion of the turbine 20, between blade sections 22. As shown in the figures, the axle 21 extends through one of the rod anchors 25 to reach a generator 14. In other
  • the axle 21 may terminate at the rod anchors 25.
  • a generator 14 may be included between the rod anchors 25.
  • Each shaping rod 24 preferably is made of a hollow lightweight pipe, for example, an aluminum pipe. Using lightweight shaping rods 24 may help reduce the wind speed necessary to achieve rotation of the turbine 20 at a particular target rotational speed.
  • the turbine 20 is adapted to rotate about the axle 21 in the direction R when the turbine 20 is exposed to a wind flow across the blade sections 22.
  • drag forces acting on the blade section 22 cause it to rotate about the axle 21 in the direction R.
  • the shape of each blade section 22 includes a curved drag surface 23 to create a Savonius-type blade shape, which may have improved self- starting ability at low wind speeds compared to other blade shapes.
  • the turbine may include a double-S cross-sectional shape.
  • each turbine 20 includes two subsets of blade sections 22, wherein a first subset of blade sections 22 extends from a first portion of the axle 21, and a second subset of blade sections 22 extends from a second portion of the axle 21 horizontally adjacent to the first portion.
  • the angles at which the first subset of blade sections 22 extends from the axle 21 are offset approximately ninety degrees (90°) from the angles at which the second subset of blade sections 22 extends from the axle 21. This configuration reduces the likelihood that the turbine will stall.
  • each blade section 22 includes a curved drag surface 23, in other embodiments, each blade section 22 may have other shapes.
  • each turbine 20 may have a rushton turbine-type design, where each blade section 22 has a flat shape, so that each blade section 22 has a flat drag surface instead of a curved drag surface 23.
  • Any horizontal axis radial wind turbine blade shape may be used for each turbine 20.
  • the blade section design for each turbine 20 be of a type that has good self- start performance at low wind speeds. (i.e., rotation can begin at low wind speeds due to the presence of drag surfaces on the blade sections), such as a Savonius-type blade section shape.
  • a second embodiment wind turbine and housing combination 1 10 includes a horizontal axis radial wind turbine 120 and a housing 130 surrounding the turbine 120.
  • the turbine 120 rotates about an axle 121 that is oriented horizontally with respect to the ground.
  • the axle 121 is oriented substantially parallel to a longitudinal axis of an apex 1 11 of a gable roof 112 of a building.
  • the turbine 120 includes a generator (shown, for example, in FIG. 1A) operatively coupled to a first end of the axle 121.
  • the turbine 120 further includes a plurality of blade sections 122 extending radially from the axle 121.
  • the blade sections 122 are circumferentially spaced about the axle 121, each blade section 122 including a curved drag surface 123 that provides a stall surface normal to the direction of an anticipated wind flow.
  • Each blade section 122 preferably is made from a lightweight fabric, such as nylon.
  • Each blade section 122 is formed into a desired shape providing a curved drag surface 123 normal to the direction of an anticipated wind flow by being wrapped around shaping rods 124 that extend between rod anchors (shown, for example, in FIG. 2A).
  • each shaping rod 124 there are three shaping rods 124 to provide the shape of the curved drag surface 123 of each blade section 122.
  • Each shaping rod 124 preferably is made of a hollow lightweight pipe, for example, an aluminum pipe. Using lightweight shaping rods 124 may help reduce the wind speed necessary to achieve rotation of the turbine 120 at a particular target rotational speed.
  • the turbine 120 is adapted to rotate about the axle 121 in the direction R when the turbine 120 is exposed to a wind flow across the blade sections 122.
  • drag forces acting on the blade section 122 cause it to rotate about the axle 121 in the direction R.
  • Each blade section 122 preferably is made from two sheets of lightweight fabric: (i) an inner sheet providing a radially inward facing surface of the blade section 122, and (ii) an outer sheet providing a radially outward facing surface of the blade section 122.
  • a single lightweight fabric sheet may be folded over itself to serve as both the inner sheet and the outer sheet of the blade sections 122.
  • the inner sheet and the outer sheet of each blade section 122 preferably wrap around either respective side of each shaping rod 124.
  • the inner sheet and the outer sheet of each blade section 122 may be bonded to each other with an adhesive to attach each blade section 122 to the shaping rods 124.
  • the housing 130 surrounds the turbine 120 and is attached to the gable roof 112 of a building.
  • the housing 130 includes a louver frame 131, a housing roof 132, housing attachment brackets 133 for coupling the housing 130 to the gable roof 1 12, a plurality of louvers 134 each coupled to the louver frame 131 at pivots 135.
  • the bottom set of louvers 144 turn in towards turbine 20.
  • the top two sets of louvers 140, 142 turn outward away from turbine 20.
  • the bottom set of louvers 144 is used to direct thermal currents rising from the roof and also to direct wind.
  • the top sets of louvers 140, 142 may be used for exhausting air current from the housing 30.
  • a wind speed input device such as anemometer 137 adapted to provide wind speed information that can be used to determine whether each louver 134 should be open or closed at a given moment in time.
  • the anemometer 137 is operatively coupled one or more motors (not shown) that are adapted to control the position of each lover 134 based on the wind speed information received by the anemometer 137.
  • the wind speed input device is shown as the anemometer 137, in other embodiments, the wind speed input device may be any other type of wind speed input device, including for example, a spring that is biased to keep a particular louver 134 open or closed, alone or in combination with a stall surface included in a louver 134 (not shown).
  • a first louver 134 that is biased open by a spring may remain open at any wind speed.
  • the louver frame 131 includes one or more compartments 136, each compartment 136 adapted to be coupled to an exterior surface of the gable roof 1 12 via housing attachment brackets 133 and 138.
  • a plurality of compartments 136 are connected in an end-to-end configuration, each compartment 136 surrounding a portion of the turbine 120.
  • the blade sections 122 of the turbine 120 extend above the top of the louver frame 131 into the space between the top of the louver frame 131 and the housing roof 132.
  • Such a design, in which the blade sections extend into the space between the top of the louver frame and the housing roof may allow the housing to have a smaller vertical height for a given diameter turbine compared to other embodiments.
  • the blade sections of the turbine may remain inside the space defined by the louver frame 131 at all points during rotation of the turbine, and the space above the louver frame and below the housing roof may be unoccupied by blade sections of the turbine.
  • Each louver 134 is pivotable relative to the louver frame 131 by rotation about the pivot 135.
  • Each louver 134 is capable of having (i) a closed position that prevents wind from entering the housing 130 and (ii) an open position that permits wind to enter the housing 130 such that the wind can turn the turbine 120.
  • Each louver 134 can be moved or actuated between the closed position and an open position by one or more motors (not shown) that are operatively coupled to each of the plurality of louvers 134.
  • the housing 130 includes three louvers 134 on each side of the housing 130.
  • the six louvers 134 include two primary upper louvers 140, two secondary upper louvers 142 located vertically below the primary upper louvers 140, and two lower louvers 144 located vertically below the secondary upper louvers 142 and the turbine 120 and adapted to be positioned adjacent to an exterior surface of the gable roof 1 12.
  • the primary upper louvers 140 and the secondary upper louvers 142 are pivotable between a closed position and an open position wherein the lower end of each upper louver 140 and 142 is rotated away from the turbine 120 and outside the louver frame 131.
  • the lower louvers 144 are pivotable between a closed position and an open position wherein the upper end of each lower louver 144 is rotated inside the louver frame 131.
  • each upper louver 140 and 142 is shown as rotating about a pivot 135 located at the top of each upper louver 140 and 142
  • each lower louver 144 is shown as rotating about a pivot 135 located at the bottom of each lower louver 144
  • any combination of locations of pivots 135 relative to upper louvers 140 and 142 and lower louvers 144 may be used.
  • all louvers 134 may pivot about a pivot 135 located at the top of the louvers 134
  • all louvers 134 may pivot about a pivot 135 located at the bottom of the louvers 134
  • any combination of louvers 134 that pivot about a pivot 135 located at the top or bottom of the louvers 134 may be used in a single embodiment of the housing 130.
  • louver 134 Whether a particular louver 134 is open or closed at any given time preferably depends on the wind speed information received by the anemometer 137 (or other wind speed input device).
  • each lower louver 144 when the anemometer 137 detects a high wind speed, each lower louver 144 may be moved to or oriented in a closed position, while each upper louver 140 and 142 moves to an open position. Or, for example, when the anemometer 137 detects a high wind speed, each lower louver 144 and each secondary upper louver 142 (located adjacent to each lower louver 144) may be moved to a closed position, while each primary upper louver 140 moves to an open position. Or, for example, when the anemometer 137 detects a high wind speed all of the louvers 134 may be moved to or oriented in an open position.
  • each lower louver 144 may be moved to or oriented in an open position, while each upper louver 140 and 142 remains in a closed position.
  • each lower louver 144 and each secondary upper louver 142 located adjacent to each lower louver 144) may be moved to an open position, thereby forming an air channel between each lower louver 144 and each adjacent secondary upper louver 142.
  • Such an air channel may constrict the air passing into the housing 130, which may increase the pressure in the air entering the housing 130 so that more force is applied to the curved drag surfaces 123 for a given entering air volume, thereby increasing the speed of rotation of the turbine 120.
  • such an air channel created between a lower louver 144 and an adjacent secondary upper louver 142 may provide a nozzle effect on air currents entering the housing 130, which may force air into the housing 130 with increased pressure.
  • the reduction in cross- sectional area of the air current entering the housing 130 through the air channel may create air compression in the channel. Compression of the air current in the channel created by a lower louver 144 and an adjacent secondary upper louver 142 may increase the pressure in an air current entering the housing 130.
  • This increased pressure of air entering the housing 130 may provide more force against the curved drag surfaces 123, thereby increasing the speed of rotation of the turbine 120 from a given wind current.
  • Such low wind speed configurations which may open each lower louver 144 and that may form an air channel between each lower louver 144 and each adjacent secondary upper lover 142, may be configured to take advantage of anticipated thermal air currents moving upward along the surfaces of the gable roof 112 from the lower edges towards the apex 11 1, thereby allowing the turbine 120 to rotate and generate energy, even in the absence of a wind field having a significant non-zero velocity.
  • the sun may heat the surface of the gable roof 112.
  • Such heating of the gable roof 1 12 may cause a thermal air current, wherein the hot gable roof 1 12 heats the air close to the surface of the gable roof 1 12 via conduction.
  • the lower density heated air rises along the surface of the gable roof 1 12 relative to the higher density colder air further away from the surface of the gable roof 112.
  • Such a thermal air current may rise along the hot gable roof 1 12 towards the apex 1 11, even in the absence of wind.
  • the motion of the thermal air current that enters the housing 130 may be sufficient to rotate the turbine 120 and produce electricity for the building on which the combination 110 is mounted.
  • the bottom set of louvers 144 opens inward directing current towards the turbine 20 and the top sets of louvers 140, 142 on the windward side will stay closed.
  • the bottom set of louvers will be opened to direct thermal currents and the top set of louvers will be closed on the windward side.
  • the louvers on the leeward side of the housing 30 may be opened or slightly opened to allow air flow out of the housing.
  • warm air located in an interior 150 of the gable roof 1 12 may be permitted to flow into the housing 130 through one or more apertures 152 located underneath the housing 130 and/or one or more apertures 154 located outside of and vertically below the housing 130.
  • Heating of the gable roof 112 may heat the air located in the interior 150 close to the surface of the gable roof 112 via conduction.
  • the lower density heated air rises through the apertures 152 and/or 154 relative to the higher density colder air located outside of gable roof 1 12, thereby allowing each aperture 152 and/or 154 to emit a convection current of air into the housing 130.
  • Such a thermal air current may rise through the hot gable roof 112 towards the housing 130, even in the absence of wind.
  • a guide 156 may be used to deflect thermal air currents flowing through an aperture 154 towards an air channel located between an open lower louver 144 and an open adjacent secondary upper louver 142.
  • the turbine 120 will always rotate in a counter-clockwise direction R about axle 121, no matter which direction the wind field enters the housing 130.
  • This counter-clockwise rotation R is due to the orientation of the curved drag surfaces 123 of each blade section 122 relative to the axle 121.
  • the force of the wind acting on the curved drag surface 123 of each blade section 122 will cause a counter-clockwise torque that rotates the turbine 120 about the axle 121 in the counter-clockwise direction R.
  • the curved drag surfaces 123 of each blade section 122 may be switched relative to the axle 121, such that the turbine 120 will always rotate in a clockwise direction about axle 121. Whether the turbine 120 is installed in the housing 130 to rotate in a clockwise or a counter-clockwise direction may depend on the particular geometry of the anticipated wind flows near the apex 1 11 of the gable roof 1 12.
  • louvers 134 may be beneficial to open or close particular louvers 134 independently of the other louvers 134, depending on the velocity and direction of the wind field detected by the anemometer 137.
  • all three sets of louvers 140, 142, 144 on the windward side of housing 130 may be moved to an open position.
  • all two sets of louvers may be in the open position.
  • FIG. 3A if the primary upper louver 140 on the right side of the housing 130 is open, wind can blow directly into the curved drag surface 123 of the top blade section 122, thereby causing the turbine 120 to rotate counter-clockwise.
  • a louver 134 on the left side of the housing 130 may be moved to an open position to vent the wind out of the housing 130 after the top blade section 122 has rotated vertically below the axle 121.
  • the wind may be vented out of the housing roof 132 of the housing 130 through a louver positioned in the housing roof 132 (not shown).
  • a first secondary upper louver 142 on the left side of the housing 130 may be moved to an open position, while a second secondary upper louver 142 on the left side of the housing 130 may remain in a closed position. As can be seen in FIG.
  • a louver 134 on the right side of the housing 130 may be moved to an open position to vent the wind out of the housing 130 after the top blade section 122 has rotated vertically above the axle 121.
  • the wind may be vented out of the housing roof 132 of the housing 130 through a louver positioned in the housing roof 132 (not shown).
  • a lower louver 144 and a secondary upper louver 142 on the right side of the housing 130 may be moved to an open position to create an air channel for a thermal air current, while the corresponding lower louver 144 and secondary upper louver 142 on the left side of the housing 130 may remain in a closed position.
  • a thermal current may blow into the curved drag surface 123 of the top blade section 122, thereby causing the turbine 120 to rotate counter-clockwise.
  • a louver 134 on the left side of the housing 130 may be moved to an open position to vent the wind out of the housing 130 after the top blade section 122 has rotated vertically below the axle 121.
  • the wind may be vented out of the housing roof 132 of the housing 130 through a louver positioned in the housing roof 132 (not shown).
  • the louvers may be adjusted accordingly. For example, on a moderately windy day, with wind speeds at approximately 10 miles per hour, the bottom louver may be completely open and the middle or top louver may be partially open on the windward side. Similarly, in very windy conditions such as when the wind is blowing at approximately 60 miles per hour, the louvers may only be cracked slightly to allow for rotation of the turbine 20 but to protect the turbine from the full force of the wind.

Landscapes

  • 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)
  • Power Engineering (AREA)
  • Wind Motors (AREA)

Abstract

L'invention porte sur une combinaison éolienne et enveloppe, qui peut comprendre une éolienne radiale à axe horizontal et une enveloppe entourant l'éolienne. L'éolienne peut comprendre un axe, une pluralité de sections aubes s'étendant radialement à partir de l'axe et une génératrice couplée fonctionnellement à une première extrémité de l'axe. Chaque section aube peut comprendre une surface de trainée incurvée qui forme une surface de décrochage normale à la direction d'un flux de vent anticipé. La génératrice peut être adaptée pour produire de l'électricité lorsque l'axe est entraîné en rotation. L'enveloppe peut comprendre une pluralité de persiennes et un moteur accouplé fonctionnellement à la pluralité de persiennes. Chaque persienne peut être apte à prendre (i) une position fermée qui empêche le vent d'entrer dans l'enveloppe et (ii) une position ouverte qui permet au vent d'entrer dans l'enveloppe. L'enveloppe peut être adaptée pour être fixée à un sommet d'un toit à pignon d'un immeuble.
PCT/US2010/055239 2009-11-03 2010-11-03 Éolienne radiale à axe horizontal WO2011056835A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10829006.5A EP2496834A4 (fr) 2009-11-03 2010-11-03 Éolienne radiale à axe horizontal
US13/463,146 US20130119661A1 (en) 2009-11-03 2012-05-03 Horizontal Axis Radial Wind Turbine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25757809P 2009-11-03 2009-11-03
US61/257,578 2009-11-03

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13/463,146 Continuation-In-Part US20130119661A1 (en) 2009-11-03 2012-05-03 Horizontal Axis Radial Wind Turbine

Publications (1)

Publication Number Publication Date
WO2011056835A1 true WO2011056835A1 (fr) 2011-05-12

Family

ID=43970307

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2010/055239 WO2011056835A1 (fr) 2009-11-03 2010-11-03 Éolienne radiale à axe horizontal

Country Status (2)

Country Link
EP (1) EP2496834A4 (fr)
WO (1) WO2011056835A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015118361A1 (fr) * 2014-02-07 2015-08-13 Wind+Sol Ltd Turbine éolienne à pales multiples, pale complète, à mode horizontal ou vertical à basse vitesse et faible bruit
RU2631587C2 (ru) * 2015-09-21 2017-09-25 Сергей Николаевич Загребельный Парусная горизонтальная ветросиловая турбина

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4319141A (en) * 1980-06-30 1982-03-09 Schmugge Frederick K Turbine configurations using wind and solar power
US20030111843A1 (en) * 2001-12-19 2003-06-19 Tallal Joseph J. System and building for generating electricity using wind power
WO2006123951A1 (fr) * 2005-05-18 2006-11-23 Leonard Charles Wicks Eolienne
US20080131273A1 (en) * 2006-12-05 2008-06-05 Fuller Howard J Wind turbine for generation of electric power

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004099605A2 (fr) * 2003-04-30 2004-11-18 Taylor Ronald J Eolienne a deflecteur arretant et dirigeant le vent et rotors avec ou sans puits central
MXPA06012703A (es) * 2004-05-03 2007-04-02 Wind Energy Group Inc Turbina de viento para generar electricidad.
DE102008019276A1 (de) * 2008-04-16 2009-10-22 Sahm, Marion Vorrichtung zum Konzentrieren der Strömungsenergie eines auf einen Rotor wirkenden Gas- oder Flüssigkeitsstroms, Windkraftanlage sowie Verfahren zum Betreiben einer Windkraftanlage
US7579701B1 (en) * 2008-08-13 2009-08-25 Ronald J White Insulation and power generation system for buildings

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4319141A (en) * 1980-06-30 1982-03-09 Schmugge Frederick K Turbine configurations using wind and solar power
US20030111843A1 (en) * 2001-12-19 2003-06-19 Tallal Joseph J. System and building for generating electricity using wind power
WO2006123951A1 (fr) * 2005-05-18 2006-11-23 Leonard Charles Wicks Eolienne
US20080131273A1 (en) * 2006-12-05 2008-06-05 Fuller Howard J Wind turbine for generation of electric power

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2496834A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015118361A1 (fr) * 2014-02-07 2015-08-13 Wind+Sol Ltd Turbine éolienne à pales multiples, pale complète, à mode horizontal ou vertical à basse vitesse et faible bruit
RU2631587C2 (ru) * 2015-09-21 2017-09-25 Сергей Николаевич Загребельный Парусная горизонтальная ветросиловая турбина

Also Published As

Publication number Publication date
EP2496834A1 (fr) 2012-09-12
EP2496834A4 (fr) 2014-07-09

Similar Documents

Publication Publication Date Title
US20130119661A1 (en) Horizontal Axis Radial Wind Turbine
EP1423607B1 (fr) Dispositif de production d'energie a circulation d'air s'effectuant par une colonne
US7132760B2 (en) Wind turbine device
US8257020B2 (en) Wind turbine system for buildings
CA2543285C (fr) Eolienne a deflecteur arretant et dirigeant le vent et rotors avec ou sans puits central
US7315093B2 (en) Wind turbine system for buildings
US7362004B2 (en) Wind turbine device
US10612515B2 (en) Vertical axis wind turbine
EP2409024B1 (fr) Ensemble turbine
EP2609325B1 (fr) Turbine à axe vertical
WO2006119648A1 (fr) Eolienne helicoidale
CN101338731B (zh) 集风型筒式水平轴发电系统
JP2010511831A (ja) 風力タービン装置
WO2009091782A1 (fr) Turbine à clapet anti-retour
WO2010098656A2 (fr) Collecteur solaire, éolien et d'eaux pluviales
US8480363B2 (en) Self-starting turbine with dual position vanes
MX2011013964A (es) Un sistema de mejora de presion controlada para una turbina eolica.
US11236724B2 (en) Vertical axis wind turbine
WO2010050837A1 (fr) Installation éolienne
US11156204B2 (en) Wind turbine
JP2012107612A (ja) 風洞体、垂直軸型風車、構造物、風力発電装置、油圧装置、ならびに建築物
EP2496834A1 (fr) Éolienne radiale à axe horizontal
US8408867B2 (en) Multi directional augmenter and diffuser
GB2404700A (en) Roof mounted wind turbine
WO2017160136A1 (fr) Centrale éolienne

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10829006

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2010829006

Country of ref document: EP