WO2017010863A1 - Éolienne - Google Patents

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Publication number
WO2017010863A1
WO2017010863A1 PCT/MY2016/050031 MY2016050031W WO2017010863A1 WO 2017010863 A1 WO2017010863 A1 WO 2017010863A1 MY 2016050031 W MY2016050031 W MY 2016050031W WO 2017010863 A1 WO2017010863 A1 WO 2017010863A1
Authority
WO
WIPO (PCT)
Prior art keywords
horizontal
blades
vertical
airfoil
blade
Prior art date
Application number
PCT/MY2016/050031
Other languages
English (en)
Inventor
Wen Tong Chong
Yuen Yoke KONG
Original Assignee
Universiti Malaya
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 Universiti Malaya filed Critical Universiti Malaya
Publication of WO2017010863A1 publication Critical patent/WO2017010863A1/fr

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 
    • F03D3/06—Rotors
    • F03D3/062—Rotors characterised by their construction elements
    • 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 
    • F03D1/06—Rotors
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • 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 
    • F03D3/06—Rotors
    • F03D3/061—Rotors characterised by their aerodynamic shape, e.g. aerofoil profiles
    • 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
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

Definitions

  • the present invention relates generally to wind turbines, more particularly to wind turbines with new arrangement of horizontal and vertical blades.
  • Wind turbine converts wind energy into mechanical or electrical energy.
  • Horizontal axis wind turbines have rotor shaft at the top of a tower and pointed towards the wind. This generator usually has three-blade rotor to harvest wind.
  • Horizontal axis wind turbine need regular maintenance and repair. The rotor is dangerous to animals, especially birds.
  • Vertical axis wind turbines have rotor shaft arranged vertically. The turbine does not need to be pointed towards wind direction. It can harvest wind from different directions.
  • the turbines are usually installed near to the base on which they rest, such as the ground or a building roof top. When the turbine is mounted on a roof top, the building generally redirects wind over the roof and this can increase wind speed at the turbine.
  • vertical axis wind turbines have lower efficiency compared to horizontal axis wind turbines.
  • Wind can hit both sides of vertical axis blades, i.e. one blade side following wind direction and the other blade side which counters the wind direction.
  • Granted patent US 6,913,435 B2 reveals a new vane for turbine.
  • Main blades are arranged around an axial shaft.
  • Rotor blades are used to connect main blades with axial shaft.
  • the vane may be used on a side wall of upper location of a tall building with axial shaft of vane being set in horizontal direction.
  • Granted patent US 8,963,355 B2 reveals a vertical axis wind turbine which can harvest wind in horizontal and vertical direction.
  • the turbine includes blades for driving generator shaft of which cross sections are arranged symmetrically to increase the efficiency of wind turbine.
  • a cylindrical cam and cam follower for controlling the angle of each blade to an optimum condition guide a working fluid having kinetic energy to introduce right angle to the direction of cross section of each blade.
  • the vane arrangement is further improved to convert more energy from incident wind, particularly wind from different direction.
  • a new arrangement of vane is devised to achieve this purpose.
  • the vane is designed to harvest omni- direction horizontal wind as vertical axis wind turbine and vertical wind from bottom of turbine.
  • the wind turbine comprises a rotor shaft; a first set of three horizontal airfoil blades coupled to a level of rotor shaft; a first set of three elbows, each elbow coupled to the tip of each horizontal blade; three vertical airfoil blades, each vertical blade coupled to each elbow; a second set of three horizontal blades coupled to a different level of rotor shaft; and a second set of three elbows, each elbow coupled to the tip of each second set horizontal blade and vertical airfoil blades.
  • Each blade of the first set and second set of three horizontal airfoil blades are arranged at an upward angle over horizontal plane.
  • the first set and second set of three horizontal airfoil blades are arranged with blades forming angle of 120° over one another.
  • the first set of three horizontal airfoil blades are offset over second set of three horizontal airfoil blades at an angle of 60°.
  • the vertical airfoil blades are coupled between offset angle of first set three horizontal airfoil blades and second set three horizontal airfoil blades.
  • Fig. 1 A illustrates a top view of a first set of three horizontal airfoil blades with elbows, according to the invention
  • Fig. 1 B illustrates a top view of a second set of three horizontal airfoil blades with elbows
  • Fig. 2 illustrates a perspective view of an embodiment of elbow
  • Fig. 3 illustrates a perspective view of a horizontal blade and elbow, and a sectional view of horizontal blade.
  • Fig. 4 illustrates a top view of an embodiment showing a first set and second set of three horizontal airfoil blades with elbows.
  • Fig. 5 illustrates a perspective view of an embodiment of wind turbine.
  • Fig. 6 illustrates a perspective view of wind flow for wind turbine of Fig. 5.
  • a rotor shaft 101 is driven by several horizontal airfoil blades 104a, 104b and vertical blades 103.
  • a first set of three horizontal airfoil blades 104a are coupled to a level of rotor shaft 101 as shown in Fig. 1 A.
  • the three horizontal airfoil blades are arranged with blades forming angle of 120° over one another.
  • Each tip of horizontal blade 104a is coupled to an elbow 102a.
  • the elbow 102a couples horizontal blade 104a to vertical blade 103.
  • An elbow connector 107a receives the horizontal blade 104a.
  • a hub 105a can be used to couple the horizontal blade 104a to shaft 101 .
  • the shaft 101 is used to drive generator 1 10 that convert wind energy into electricity.
  • a second set of three horizontal airfoil blades 104b are coupled to another level of rotor shaft 101 as shown in Fig. 1 B.
  • the three horizontal airfoil blades are arranged with blades forming angle of 120° over one another.
  • Each tip of horizontal blade 104b is coupled to an elbow 102b.
  • the elbow 102b couples horizontal blade 104b to vertical blade 103.
  • An elbow connector 107b receives the horizontal blade 104b.
  • a hub 105b can be used to couple the horizontal blade 104b to shaft 101 .
  • elbow 102a is shown in Fig. 2.
  • the elbow 102a is provided with elbow connector 107a adapted to receive horizontal airfoil blade.
  • a connector securing means 205 is used to secure the elbow 102a to the horizontal airfoil blade 104a. Screws, nuts and bolts or other suitable tools can be used to as securing means 205.
  • Vertical airfoil blade 103 can be inserted in elbow hole 203 which is adapted to receive vertical airfoil blade.
  • a connector securing means 206 is used to secure the elbow to the vertical airfoil blade 103.
  • the first set and second set of three horizontal airfoil blades are arranged at an upward angle , say 10°, over horizontal plane, as shown in Fig. 3.
  • the pitching of horizontal blade is made so that it can harness vertical wind from bottom of turbine. This pitching is also used to aid self-starting capability of wind turbine.
  • the horizontal airfoils are NACA 0015 airfoil.
  • FIG. 4 An embodiment of wind turbine showing two sets of horizontal blade overlapping one another is shown in Fig. 4.
  • the second set of three horizontal airfoil blades 104b are offset over first set of three horizontal airfoil blades 104a at an angle of 60°. This arrangement is used so that incident wind on one half side of the blade will not counter wind on the other half side of the blade.
  • the vertical airfoil blade 103 are coupled between offset angle of first set three horizontal airfoil blades 104a and second set three horizontal airfoil blades 104b.
  • FIG. 5 An embodiment of wind turbine around vertical axis 108 is shown in Fig. 5.
  • First set horizontal blade 104a is coupled to hub 105a using fastening means 106a.
  • the first set horizontal airfoil blades are pitched at angle from horizontal plane using pitching means 109a.
  • Second set horizontal blade 104b is coupled to hub 105b using fastening means 106b.
  • the second set horizontal airfoil blades are pitched at angle from horizontal plane using pitching means 109b.
  • the first set of three horizontal airfoil blades 104a are coupled to a level of rotor shaft 101 .
  • Each elbow of the first set of three elbows 102a is coupled to the tip of each horizontal blade 104a.
  • Each vertical blade of three vertical airfoil blades 103 are coupled to each elbow.
  • a second set of three horizontal blades 104b are coupled to a different level of rotor shaft.
  • Each elbow of the second set of three elbows 102b are coupled to the tip of each second set of horizontal blade 104b and vertical airfoil blades 103.
  • the length of vertical airfoil blades 103 extend beyond corresponding placement of first elbow and second elbow.
  • Each vertical airfoil blades 103 are NACA 0015 airfoil.
  • the use of second set of horizontal airfoil blade at an offset angle over first set of horizontal airfoil blade will create different elbow position for vertical airfoil blade 103.
  • Such arrangement can reduce rotation drag created by wind on both half side of the wind turbine. This arrangement also avoid air flow blockage between top horizontal blades with bottom horizontal blades.
  • the wind turbine is devised to harness wind from two different directions, as shown in Fig. 6. Firstly, the wind turbine can harness radial horizontal incident wind 303. Secondly, the wind turbine can harness vertical wind from bottom of turbine 304. The placement of vertical airfoil blade in radial position allows the turbine to harness radial incident wind 303. The pitching of horizontal airfoil blade over horizontal plane allows the turbine to harness vertical wind 304.
  • the invention discloses a novel wind turbine. It has three vertical blades driven by two sets of three horizontal blades. It is the combination of the above features and its technical advantages give rise to the uniqueness of such invention.
  • the descriptions above contain much specificity, these should not be construed as limiting the scope of the embodiment but as merely providing illustrations of some of the presently preferred embodiments.

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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Wind Motors (AREA)

Abstract

La présente invention concerne une éolienne à flux double permettant d'exploiter le vent sur deux axes transversaux. L'éolienne comprend trois pales à profil aérodynamique verticales [103] entraînées par deux ensembles de trois pales à profil aérodynamique horizontales [104a, 104b]. Les pales horizontales [104a, 104b] servent de bras radiaux qui relient les pales verticales [103]. Des coudes [102a, 102b] sont utilisés pour accoupler les pales à profil aérodynamique horizontales [104a, 104b] aux pales à profil aérodynamique verticales [103]. Chaque pale horizontale [104a, 104b] est disposée de façon oblique vers le haut par rapport au plan horizontal. Un vent horizontal incident [303] provenant de n'importe quelle direction peut être exploité par les pales verticales. Un courant d'air vertical provenant de la partie inférieure de l'éolienne [304] peut être exploité par les pales horizontales [104a, 104b], ce qui améliore une capacité d'auto-démarrage de l'éolienne.
PCT/MY2016/050031 2015-07-16 2016-05-10 Éolienne WO2017010863A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MYPI2015702341A MY187097A (en) 2015-07-16 2015-07-16 Wind turbine
MYPI2015702341 2015-07-16

Publications (1)

Publication Number Publication Date
WO2017010863A1 true WO2017010863A1 (fr) 2017-01-19

Family

ID=57758145

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/MY2016/050031 WO2017010863A1 (fr) 2015-07-16 2016-05-10 Éolienne

Country Status (2)

Country Link
MY (1) MY187097A (fr)
WO (1) WO2017010863A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112128051A (zh) * 2020-10-21 2020-12-25 温州砼程维禹科技有限公司 一种垂直式多层风力发电装置
CN113982840A (zh) * 2021-10-29 2022-01-28 西安交通大学 一种适用于山谷风的增功风力机及发电方法
WO2022112416A1 (fr) 2020-11-25 2022-06-02 Universität Für Bodenkultur Wien Nouveau lit de chromatographie

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57191873U (fr) * 1981-05-30 1982-12-04
JP2005061319A (ja) * 2003-08-12 2005-03-10 Toshiba Plant Systems & Services Corp 全風向用風力発電装置
JP2005240632A (ja) * 2004-02-25 2005-09-08 No Hayashi 風力発電装置用の風車
JP2011027094A (ja) * 2009-07-28 2011-02-10 Yoshihiko Akioka 風力発電装置のブレードおよびこれを用いた風力発電装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57191873U (fr) * 1981-05-30 1982-12-04
JP2005061319A (ja) * 2003-08-12 2005-03-10 Toshiba Plant Systems & Services Corp 全風向用風力発電装置
JP2005240632A (ja) * 2004-02-25 2005-09-08 No Hayashi 風力発電装置用の風車
JP2011027094A (ja) * 2009-07-28 2011-02-10 Yoshihiko Akioka 風力発電装置のブレードおよびこれを用いた風力発電装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112128051A (zh) * 2020-10-21 2020-12-25 温州砼程维禹科技有限公司 一种垂直式多层风力发电装置
CN112128051B (zh) * 2020-10-21 2021-07-06 温州砼程维禹科技有限公司 一种垂直式多层风力发电装置
WO2022112416A1 (fr) 2020-11-25 2022-06-02 Universität Für Bodenkultur Wien Nouveau lit de chromatographie
CN113982840A (zh) * 2021-10-29 2022-01-28 西安交通大学 一种适用于山谷风的增功风力机及发电方法
CN113982840B (zh) * 2021-10-29 2023-01-20 西安交通大学 一种适用于山谷风的增功风力机及发电方法

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