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WO2011159618A1 - Concentrateur pour turbine éolienne - Google Patents

Concentrateur pour turbine éolienne Download PDF

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Publication number
WO2011159618A1
WO2011159618A1 PCT/US2011/040200 US2011040200W WO2011159618A1 WO 2011159618 A1 WO2011159618 A1 WO 2011159618A1 US 2011040200 W US2011040200 W US 2011040200W WO 2011159618 A1 WO2011159618 A1 WO 2011159618A1
Authority
WO
WIPO (PCT)
Prior art keywords
wind
turbine
funnel
frame
turbine wheel
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.)
Ceased
Application number
PCT/US2011/040200
Other languages
English (en)
Inventor
Barney D. Saunders, Iii
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2011159618A1 publication Critical patent/WO2011159618A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • 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
    • F03D3/0436—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 for shielding one side of the rotor
    • F03D3/0445—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 for shielding one side of the rotor the shield being fixed with respect to the wind motor
    • 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
    • F03D3/0436—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 for shielding one side of the rotor
    • F03D3/0445—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 for shielding one side of the rotor the shield being fixed with respect to the wind motor
    • F03D3/0463—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 for shielding one side of the rotor the shield being fixed with respect to the wind motor with converging inlets, i.e. the shield 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
    • 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
    • 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
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

Definitions

  • windmills that convert wind energy to electricity.
  • Conventional windmill generators include a fan mounted to a generator pod atop an elongate pole.
  • the blades on the fan are usually very long and aerodynamically shaped to maximize the motive force from the wind, i.e., they are designed to convert the wind energy to rotational energy for turning the fan and a generator with minimal effort.
  • these conventional windmill generators usually require favorable climates to be viable, and they cannot be easily installed on homes or buildings. In addition, they pose a hazard to birds flying nearby.
  • FIG. 1 Another variant is a wind turbine moutned inside an enclosed housing that funnels air into the turbine.
  • the housing is moutned to an annular track, which pivots thereon to orient the housing in the direction of the wind.
  • the interior of the housing also includes a breaker at the inlet that splits the wind stream towards the turbine. While functional, the complexity and bulk of such a device do not permit easy reoreintation or maximal use of wind energy. In light of the above, it would be desirable to provide a device that can maximize conversion of wind power to usable energy in a wide variety of locales. Thus, a wind turbine funnel solving the aforementioned problems is desired.
  • the wind turbine funnel of the present invention includes a frame mounted to a support for rotational support about an axis.
  • the frame includes an inlet having a funnel directing incoming wind towards a turbine wheel disposed adjacent the funnel.
  • the funnel includes an angled upper deflector and, optionally, an angled lower deflector disposed between side panels.
  • the turbine wheel includes a plurality of curved wind blades radiating from the axis of the wheel. The blades are configured to maximize the force of wind against the turbine blades to turn the wheel.
  • the center of gravity of the frame and turbine is disposed behind the rotational axis to permit free rotational adjustment of the frame with respect to wind direction with minimal force.
  • the side panels may include raised sections that function as a rudder.
  • Fig. 1 is a perspective view of a wind turbine funnel according to the present invention
  • Fig. 2 is a perspective view of the wind turbine funnel invention depicted in Fig.
  • Fig. 3 is a perspective view of the turbine wheel portion of the wind turbine funnel of Fig. 1 ;
  • Fig. 4 is a side view of the wind turbine funnel of Fig. 1 ;
  • Fig. 5 is a diagrammatic view of a stack of the wind turbine funnels of Fig. 1 ;
  • Fig. 6 is a side view of an alternative embodiment of a wind turbine funnel according to the present invention.
  • the present invention relates to a wind turbine funnel, generally referred to in the drawings by reference numeral 10, for maximizing conversion of wind power to usable electrical energy.
  • the wind turbine funnel 10 includes a housing or frame 20 rotatably mounted to a support 40.
  • the frame 20 is freely rotatable about the support 40 to adjust itself in response to changes in wind direction.
  • the frame orients itself so that its front faces the wind, somewhat like a wind sock.
  • the frame 20 includes a pair of side panels 22 that rotatably support the shaft of a turbine wheel 30 on bearings (not shown). Rotation of the turbine wheel 30 can turn a generator, produce energy, which can be consumed locally or transmitted to a local power grid, the details of which will be further discussed below.
  • Each side panel 22 may be an elongate, substantially rectangular board having an arcuate segment 25 at the front and an upwardly projecting segment at the back 28.
  • the front of the side panels form part of an inlet, as indicated by wind direction 12, and the back of the side panels forms an outlet 17, as indicated by wind direction 14.
  • the upwardly projecting segments form rudders 28.
  • the rudders 28 assist turning the frame 20 into the direction of the wind.
  • the rudders 28 may be fin shaped.
  • the inlet side of the frame 22 includes an angled upper deflector 24 disposed at the upper part of the inlet side between the two side panels 22.
  • the inlet side may optionally also include an angled lower deflector 26 when additional deflection may be needed, or as desired by the user.
  • the deflectors 24, 26, along with the arcuate segments 25 of the side panels 22, form a funnel directing the wind towards the turbine wheel 30 to rotate the same.
  • the upper deflector 24 extends on a steep incline from the top 27 of the frame 22.
  • the angle of incline ranges between about 30 and 50°, with about 40° to 45° preferred, and about 42° most preferred.
  • the lower deflector 26 should have a similar angle with the horizontal defined by the longitudinal axis.
  • the upper deflector 24 is positioned to leave a small gap 29 between the turbine wheel 30 and the edge of the upper deflector 24, which permits the turbine wheel 30 to rotate without structural interference, as shown in Fig. 4. Moreover, the upper portion of the upper deflector 24 is preferably disposed at a height equal to or greater than the height of the turbine wheel 30 to minimize or eliminate potential drag on the wind blades 36 as the blades 36 rotate back toward the funnel area, i.e. the return portion of the rotation cycle for the blades 36. At this height, the upper deflector 24 deflects the wind away from the path of the returning blades 36.
  • the main deflector 24 is preferably larger dimensioned that the lower deflector 26 in order to effectively direct the wind towards the wing blades 36 and assure that the turbine wheel 30 rotates in the correct direction.
  • the lower deflector 26 assists in focusing the funneled air towards the blades 36.
  • the large upper deflector 24 and stationary enclosure of the wind turbine funnel appears to be visible to birds and other flying objects, and helps to avoid the accidents and collisions that occur with conventional windmills.
  • the turbine wheel 30 includes endcaps 32 on opposite ends of a shaft 31 where a central rotational axis is defined.
  • Each endcap 32 is preferably made from strong, lightweight and aerodynamic materials such as a lightweight alloy, fiberglass or a fiber reinforced plastic, to support the wing blades 36 and efficiently deliver wind thereto.
  • the plurality of wing blades 36 extend radially from the central axis.
  • Each wing blade 36 is arcuate or curved and includes a lip 37 extending tangentially at the distal end of the blade 36 from the central axis.
  • This shape and configuration of the blade 36 creates a catch or pocket for the incoming wind so that the force thereof can be efficiently translated to rotary power for the turbine wheel 30.
  • the curved surface of the blade 36 inclusive of the surface of the lip 37 has a larger surface area that can block the wind for a given velocity within the confines of a given radial length.
  • more wind force is acting on the curved blade 36 compared to a flat blade that can fit within the same radial dimension on the turbine wheel 30.
  • the wing blades 36 maximize conversion of the wind energy to rotary power for the turbine wheel 30.
  • One or both ends of the turbine wheel 30 include a generator assembly 38, that may be driven directly by the shaft of the turbine wheel 30 or may be gear or belt driven (not shown).
  • the generator 38 includes a rotor that converts the rotational energy from the turbine wheel 30 into electricity in substantially the same manner as in windmill generators. The electricity can then be transmitted through wires to a home, building or a local power grid.
  • the wind turbine funnel 10 is preferably installed atop a building B, a tower, or a pole, as shown in Figs. 1 and 4.
  • the frame 20 is mounted to the support 40 and freely rotatable thereon.
  • the support 40 includes a main post 42 disposed near the front portion of the frame 20 and at least one support arm 44 extending from the post 42 to brace the bottom of the frame 20.
  • the support 40 may include a large, sturdy base that does not require support arm(s) 44.
  • the turbine wheel 30 is offset from the longitudinal axis of the post 42, which results in the center of mass along being offset from the post 42. In this manner, any wind from a given direction acting on the wind turbine funnel 10 forces the same to rotate into the direction of the wind with minimal force because the offset center of mass creates a lever to facilitate the self-adjustment.
  • the incoming wind 15 is tunneled and deflected by the upper main deflector 24, the optional lower deflector 26, and the side panels 22 towards the blades 36 at the lower half of the turbine 30, i.e., the area where rotational power is being generated.
  • the incoming wind get accelerated by the deflectors 24, 26. This, in turn, rotates the turbine wheel 30 in the direction 16 as the wind passes through the wind turbine funnel 10 towards the outlet as indicated by arrows 17.
  • the height of the main deflector 24 also deflects wind away from the upper portion of the turbine 30 to minimize any potential drag on the blades 36 during their return cycle. Cable or wire may be attached from the generator 38 to the post 42 as one of several ways of transmitting generated power.
  • Fig. 5 illustrates a stacking of the arrangement for a plurality of wind turbine funnels 10, where they are mounted on a pole or tower using baffles 80 between adjacent devices. Their relatively small size allows a number of them to be stacked vertically to generate as much energy as possible in a windy area.
  • this drawing shows an alternative embodiment of the wind turbine funnel, generally referred to in the drawings by reference numeral 100.
  • the wind turbine funnel 100 is adapted more for applications where weight and/or size may be a concern.
  • the wind turbine funnel 100 is substantially the same as the previous wind turbine funnel 10 except for the frame 120.
  • the frame 120 includes side panels 122 shorter in length than the side panels 22.
  • the side panels 122 may be shaped as a substantially arcuate segment having a top beveled edge supporting a top deflector 125.
  • the configuration results in a more compact form, and the top deflector 125 helps to deflect incoming wind away from the blades 36 during their return cycle, which minimizes any potential draft thereon.
  • the side panels 122 lack a rear projection that serves as a rudder, the arcuate shape of the side panels 122 function as rudders in a compact form.
  • the upper main deflector 124 and the optional lower deflector 126 are disposed between the side panels 122.
  • the wind turbine funnel 100 functions similarly to the wind turbine funnel 10. As shown in Fig. 6, incoming wind 115 is tunneled and deflected by the upper deflector 124, the optional lower deflector 126, and the side panels 122 toward the blades 36. This, in turn, rotates the turbine wheel 30 in the direction 116 as the wind passes through the wind turbine funnel 100 towards the outlet as indicated by arrows 117. Cables or Wires may be attached from the generator 38 to the post 42 as one of several ways of transmitting generated power.
  • the wind turbine funnel 10, 100 encompasses a variety of alternatives.
  • the turbine wheel 30 may be configured with more or less than the three blades 36 shown in the drawings.
  • the curvature thereof may be increased or decreased as desired by the user to maximize capture of the wind depending on the climate variables.
  • the wind turbine funnel 10, 100 is preferably made from durable, lightweight and weather-resistant materials such as fiberglass, wood, aluminum, metals, plastics, alloys, composites, and/or combination thereof.
  • the wind turbine funnel 10, 100 may also be configured in a variety of different sizes as desired by the user.
  • the wind turbine funnel 10, 100 may be used as a single unit or a plurality of units stacked and installed on a home, building, cell phone, wind farm or power line tower, or a mountain.
  • the present invention provides several advantages over prior devices: first, it diverts the energy that would otherwise hit the back of the blades; second, it increases the energy into the generating blades by collecting the energy from the returning blades; and third, it places the majority of the device behind the center of gravity which helps to eliminate the need for a yaw motor to keep the device aimed at the wind.

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

Abstract

L'invention concerne un concentrateur pour turbine éolienne comprenant un châssis monté sur un support de façon à pouvoir tourner autour d'un axe de rotation. Le châssis comprend une entrée comportant un concentrateur dirigeant le vent arrivant vers un rotor de turbine adjacent au concentrateur. Le concentrateur comporte un déflecteur supérieur principal incliné et un déflecteur inférieur facultatif incliné situés entre des panneaux latéraux. Le rotor de turbine comprend une pluralité d'aubes courbées s'étendant radialement à partir de l'axe du rotor. Les aubes sont conçues pour maximiser la conversion de l'énergie éolienne en force de rotation du rotor. Le centre de gravité du châssis et de la turbine est situé derrière l'axe de rotation afin de permettre d'ajuster librement en rotation le châssis par rapport à la direction du vent à l'aide d'une force minimum. Les panneaux latéraux peuvent comporter des sections relevées qui servent de gouvernail.
PCT/US2011/040200 2010-06-15 2011-06-13 Concentrateur pour turbine éolienne Ceased WO2011159618A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US34422910P 2010-06-15 2010-06-15
US61/344,229 2010-06-15

Publications (1)

Publication Number Publication Date
WO2011159618A1 true WO2011159618A1 (fr) 2011-12-22

Family

ID=45096352

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/040200 Ceased WO2011159618A1 (fr) 2010-06-15 2011-06-13 Concentrateur pour turbine éolienne

Country Status (2)

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US (1) US20110305563A1 (fr)
WO (1) WO2011159618A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CL2012001512A1 (es) * 2012-06-08 2013-07-26 Piemonte Chile Spa Turbina de viento de eje horizontal ortogonal al viento,que comprende cuatro o mas toberas que direccionan el viento hacia el rodete de la turbina,y que ademas dispone de rejillas de protección,y una compuerta reguladora de flujo de aire.
WO2015053729A1 (fr) * 2013-10-09 2015-04-16 Bingol Oz Turbine à rotor à cage
US9651018B2 (en) 2014-01-30 2017-05-16 Mihalis Vorias Power generating assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4127356A (en) * 1977-06-09 1978-11-28 Thomas R. Tipps Wind motor machine
GB2185786A (en) * 1986-01-07 1987-07-29 Neil Douglas Warren Parkinson Wind powered machine
US6981839B2 (en) * 2004-03-09 2006-01-03 Leon Fan Wind powered turbine in a tunnel
US20090081020A1 (en) * 2007-09-26 2009-03-26 Caldwell Dennis P Wind turbine

Family Cites Families (15)

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Publication number Priority date Publication date Assignee Title
US648442A (en) * 1899-09-12 1900-05-01 Oscar F Scott Windmill.
US698409A (en) * 1900-06-18 1902-04-22 Henry Neuser Windmill.
US757800A (en) * 1904-03-16 1904-04-19 Joseph J Williams Wind-motor.
US1025428A (en) * 1911-10-20 1912-05-07 Michael Stanschus Wind-motor.
US1300499A (en) * 1917-05-04 1919-04-15 Harry E Slagel Wind-wheel or wind-driven prime mover.
US1333987A (en) * 1919-05-31 1920-03-16 Frank S Mcmanigal Windmill
US3986786A (en) * 1974-06-28 1976-10-19 Sellman Donald L Wind motors
US3988072A (en) * 1974-06-28 1976-10-26 Sellman Donald L Wind motors
US4191505A (en) * 1978-02-24 1980-03-04 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Wind wheel electric power generator
US4516907A (en) * 1983-03-14 1985-05-14 Edwards Samuel S Wind energy converter utilizing vortex augmentation
US5009569A (en) * 1989-07-21 1991-04-23 Hector Sr Francis N Wind energy collection system
US5336933A (en) * 1990-07-16 1994-08-09 Bru-Mel Corporation Fluid-augmented free-vortex power generating apparatus
US5348443A (en) * 1992-07-30 1994-09-20 Roberts Victor N Wind impeller
US5350273A (en) * 1993-08-23 1994-09-27 Hector Sr Francis N Wind energy collection system
US7798766B2 (en) * 2008-01-14 2010-09-21 Dieter R. Sauer Vertical axis wind sail turbine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4127356A (en) * 1977-06-09 1978-11-28 Thomas R. Tipps Wind motor machine
GB2185786A (en) * 1986-01-07 1987-07-29 Neil Douglas Warren Parkinson Wind powered machine
US6981839B2 (en) * 2004-03-09 2006-01-03 Leon Fan Wind powered turbine in a tunnel
US20090081020A1 (en) * 2007-09-26 2009-03-26 Caldwell Dennis P Wind turbine

Also Published As

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