WO2005052363A1 - Turbine eolienne a enveloppe - Google Patents

Turbine eolienne a enveloppe Download PDF

Info

Publication number
WO2005052363A1
WO2005052363A1 PCT/EP2003/013088 EP0313088W WO2005052363A1 WO 2005052363 A1 WO2005052363 A1 WO 2005052363A1 EP 0313088 W EP0313088 W EP 0313088W WO 2005052363 A1 WO2005052363 A1 WO 2005052363A1
Authority
WO
WIPO (PCT)
Prior art keywords
wind
wind power
energy
power plant
sectional area
Prior art date
Application number
PCT/EP2003/013088
Other languages
German (de)
English (en)
Inventor
Georg Reitz
Original Assignee
Kott, Klaus-Manfred
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 Kott, Klaus-Manfred filed Critical Kott, Klaus-Manfred
Priority to EP03789068A priority Critical patent/EP1702159A1/fr
Priority to AU2003293712A priority patent/AU2003293712A1/en
Priority to PCT/EP2003/013088 priority patent/WO2005052363A1/fr
Publication of WO2005052363A1 publication Critical patent/WO2005052363A1/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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/04—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D15/00—Transmission of mechanical power
    • 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
    • F03D15/00—Transmission of mechanical power
    • F03D15/10—Transmission of mechanical power using gearing not limited to rotary motion, e.g. with oscillating or reciprocating members
    • 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
    • F05B2240/40—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
    • F05B2240/93—Mounting on supporting structures or systems on a structure floating on a liquid surface
    • 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

Definitions

  • the invention relates to a wind turbine for converting wind energy into electrical energy and a method for generating electrical energy from wind energy in a wind turbine.
  • wind turbines By promoting renewable energy concepts, such wind turbines have been the subject of technical research and development for several years.
  • today's wind turbines are usually equipped with horizontal axis rotors, which must be tracked to the wind direction.
  • the optimal use is given when the air flowed through the rotor surface has just enough energy to flow away, in order to develop no braking effect.
  • the point was determined at which the speed of the wind is reduced to a good third when passing through the surface described by the rotor.
  • the number of rotor blades is insignificant for the energy efficiency.
  • the mechanical energy generated by the rotor blades is guided via gear and rotor shaft to a generator, which converts them into electrical energy.
  • the masts usually have a height of 10 to 100 m, with increasing height not only the energy yield, but also the construction costs due to the complex statics.
  • the present invention is therefore an object of the invention to provide a wind turbine that ensures a reliable conversion of the kinetic energy of the wind into electrical energy even at strongly fluctuating or extreme wind speeds.
  • the wind turbine has a wind tunnel with a first cross-sectional area, in the area of which the device for converting wind energy into mechanical energy is arranged, and that a wind power bundling device is provided which has an inlet opening with a second, compared to the first cross-sectional area having a larger cross-sectional area and which is adapted to direct a entering into the inlet port wind stream without substantial turbulence as a laminar flow in the wind tunnel.
  • Due to this structural design the total kinetic energy of the wind contained in the large cross-sectional area can be directed into the narrower wind tunnel, where due to the smaller dimensions, easier processing is possible.
  • due to the higher wind speed in the wind tunnel it is possible to use wind energy even at low wind speeds.
  • it is possible at particularly high wind speeds to limit the kinetic energy of the wind by changing the diameter of the wind tunnel or dissipation of parts of the wind so that the system can produce electricity even at extremely high wind speeds.
  • the wind turbine has a Windstromverbreiterungsvorraum, which is arranged behind the wind tunnel and having an outlet opening with a third, compared to the first cross-sectional area larger cross-sectional area.
  • a Windstromverbreiterungsvorraum which is arranged behind the wind tunnel and having an outlet opening with a third, compared to the first cross-sectional area larger cross-sectional area.
  • the wind turbine on a suitable rotatable support device, so that the inlet opening can always be aligned in the direction of wind flow.
  • the rotatable support device preferably has a float, which is guided immersed in a container with liquid.
  • the forces acting on the support device are advantageously compensated particularly well that between the side walls of the container and the float a narrow space is arranged, which is at least partially filled in the immersed state of the float by liquid columns.
  • an alignment sail is arranged in the outer area of the wind turbine.
  • the device for converting wind energy into mechanical energy has a plurality of rotor blades, which are connected at their outer ends by means of an annular connecting element, and the connecting element runs in a circular guide rail.
  • At least one further wind tunnel is preferably provided, which surrounds the first wind tunnel and can be opened and closed.
  • rotor blades are also arranged in the further wind tunnel, are connected to one another at their inner ends by means of a second annular connecting element, wherein the connecting element runs in a second circular guide rail, and the rotor blades at their outer ends are connected by means of a third annular connecting element, wherein the connecting element has outwardly pointed teeth, which serve for engagement with a gear.
  • Fig. 1 is a sketched cross-sectional view of an embodiment of the upper part of the wind turbine according to the invention
  • Fig. 2 is a sketched cross-sectional view of a second embodiment of the upper part of the wind turbine according to the invention with several wind channels;
  • FIG. 3 is an end view of the wind tunnels of the wind turbine of FIG. 2;
  • FIG. 4 shows a preferred embodiment of a wind power broadening device of a wind power plant according to the invention.
  • Fig. 5 is a sketched cross-sectional view of a wind turbine according to the invention.
  • FIG. 1 a first embodiment of the upper part of a wind turbine 1 according to the invention is shown.
  • the wind turbine 1 has an elongate building element 3, which at one end face an inlet opening 5 and at the other end side an outlet opening 7 shows.
  • the cross-sectional area of the inlet opening 5 is preferably circular and has a diameter of between 5 and 70 m, and depending on the arrangement of the other elements, a different diameter is conceivable.
  • the cross-sectional area of the outlet opening 7 in the present example is identical to that of the inlet opening 5, but other geometrical shapes or other size ratios are also conceivable.
  • a wind power bundling device 8 is arranged, which is designed funnel-shaped in the present case and directs the wind flow in narrowing flow lines to a wind tunnel 9.
  • the wind tunnel 9 preferably also has a circular cross-section and has a significantly smaller diameter than the inlet opening 5.
  • a device for converting the kinetic energy of the wind into mechanical energy 10 is arranged.
  • the devices for converting the kinetic wind energy into mechanical energy and then into electrical energy on the one hand may be a commercial turbine with a connected generator or any other known from the prior art device. A preferred embodiment of such a device 10 will be described in detail later with reference to FIG.
  • a wind power broadening device 12 is arranged, which is formed in the present example case as a reverse funnel and derives the braked by the device 10 wind flow back into the environment.
  • the operating principle of the wind turbine 1 will be explained below.
  • the wind flow enters the inlet opening 5 and is compressed by the funnel-shaped wind power bundling device 8 laminar in the direction of the wind tunnel 9, whereby the speed of the wind flow increases and at the same time the static pressure decreases.
  • kinetic energy is withdrawn from the wind by the device 10, and this is thereby decelerated.
  • the wind passing past the wind turbine 1 develops at the end of the outlet opening 7 a suction which accelerates the slow wind currents contained in the wind power broadening device 12 outwards again. This creates a kind of double Venturi nozzle in which the kinetic energy of the wind in the wind tunnel 9 is converted.
  • FIG. 2 a second embodiment of the upper part of a wind turbine 1 according to the invention is shown.
  • the inner wind tunnel 9 are further wind channels 14 concentrically arranged, which show a ring shape.
  • Each of the wind channels 14 can be opened and closed, which is done in the illustrated example case by moving suitable wall sections 15 of the wind power bundling device 8.
  • the wall sections 15 are moved by means of circumferential hinges 16 which are located in the area of the funnel, and the mechanical design of the opening and closing construction is such that the wall sections 15 mutually overlap when moved inwardly.
  • either the central wind tunnel 9 or an arbitrary number of other wind tunnels 14 are additionally opened by the movement of the wall sections 15 so that the speed achieved in each wind tunnel is relatively constant and changes in the speed of the wind flow are open Close additional wind channels 14 can be compensated, so that the generator can always run in the optimum range of rotation.
  • the additional opening and closing of the further wind passages 14 can either be person-controlled or the wind speed can be reduced. automatically adjust the use of wind sensors and suitable control circuits.
  • further devices 18 for converting the kinetic energy of the wind into mechanical energy which are detailed below with reference to FIG.
  • movable wall sections 19 of the wind power widening device 12, which move around further joints 20, can be arranged at the rear end of the wind passages 14.
  • a first device 10 for converting the kinetic energy of the wind into mechanical energy is included in the inner wind tunnel 9, a first device 10 for converting the kinetic energy of the wind into mechanical energy is included.
  • the device has four rotor blades 22, which are connected at their inner end to a shaft 24 and withdraw kinetic energy from the wind flowing through the wind tunnel 9 in a manner known per se, because due to the aerodynamic configuration of the rotor blades 22, these are themselves in the wind power and thus drive the shaft 24, which in turn is connected to a generator (not shown) for generating electrical energy.
  • a generator not shown
  • the second and third wind tunnel 14 also each have rotor blades 28, which are connected to one another at their inner ends by means of a further annular connecting element 30.
  • a further annular connecting element 30 In the illustrated example case eight of these rotor blades 28 are arranged in the second wind tunnel 14, in the third wind tunnel 12 are.
  • the annular connecting element 30 is guided in each case in a further circular guide rail (not shown), in which it runs relatively smoothly.
  • the rotor blades are connected at their outer ends to each other by means of a further annular connecting element 32, which has, for example, spikes towards the outside (not shown).
  • FIG. 4 shows a particularly preferred embodiment of the wind power broadening device 12.
  • 7 guide elements 34 are arranged in the region of the outlet opening, which produce air flow channels with a small cross-sectional area. The flowing past the wind turbine 1 air generated in these channels a particularly high suction effect, so that the decelerated by the device 10 air flow due to the channel effect undergoes a special acceleration to the outlet port 7 out. It is also conceivable to insert further guide elements behind the outlet opening 7, which guide the wind flowing past the wind turbine 1 in the direction of the outlet openings of the air flow channels and thus further enhance the suction effect.
  • Fig. 5 shows a sketched cross-sectional view of a complete wind turbine 1.
  • the previously described upper part of the wind turbine 1 rests on a support plate 38 which is fixedly connected to a rotatable support device 40.
  • the support device comprises a carrier 42 and a floating body 44 connected thereto, which is immersed in about two thirds in a liquid bath 46, which is located in a container 48. Between float 44 and the side walls of the container 48 only a narrow area is provided, in which the liquid columns can rise and fall, depending on the loads acting on the support 40 over the upper part of the wind turbine 1. Due to the size ratios ensures that the float 44 only relatively small height differences, preferably in the millimeter range covers.
  • the float 44 is guided on the side walls of the container 48 via suitable guide means (not shown).
  • suitable guide means not shown.
  • the wind turbine according to the invention can be used both on land and on water, and it is also conceivable in terms of a balanced energy concept to use the electricity obtained at least partially for the production of hydrogen, which can then be stored.

Abstract

Ensemble éolienne (1) pourvu d'un dispositif (10) destiné à convertir l'énergie cinétique du vent en énergie mécanique et d'un dispositif destiné à convertir l'énergie mécanique produite en énergie électrique. Ledit ensemble éolienne est caractérisé en ce qu'il contient un canal à vent (9) possédant une première aire de section transversale dans la zone de laquelle est situé le dispositif (10) de conversion d'énergie éolienne en énergie mécanique, et en ce qu'il possède un dispositif de production (8) de faisceaux de courants d'air pourvu d'un orifice d'entrée (5) qui possède une seconde aire de section transversale plus grande que la première aire de section transversale et qui est destiné à introduire un courant d'air entrant par l'orifice d'entrée (5), sans grand tourbillonnement et en tant que flux laminaire, dans le canal à vent (9).
PCT/EP2003/013088 2003-11-21 2003-11-21 Turbine eolienne a enveloppe WO2005052363A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP03789068A EP1702159A1 (fr) 2003-11-21 2003-11-21 Turbine eolienne a enveloppe
AU2003293712A AU2003293712A1 (en) 2003-11-21 2003-11-21 Wind turbine
PCT/EP2003/013088 WO2005052363A1 (fr) 2003-11-21 2003-11-21 Turbine eolienne a enveloppe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2003/013088 WO2005052363A1 (fr) 2003-11-21 2003-11-21 Turbine eolienne a enveloppe

Publications (1)

Publication Number Publication Date
WO2005052363A1 true WO2005052363A1 (fr) 2005-06-09

Family

ID=34626354

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/013088 WO2005052363A1 (fr) 2003-11-21 2003-11-21 Turbine eolienne a enveloppe

Country Status (3)

Country Link
EP (1) EP1702159A1 (fr)
AU (1) AU2003293712A1 (fr)
WO (1) WO2005052363A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2423339A (en) * 2004-12-23 2006-08-23 Sub Sea Turbines Ltd Bi-directional turbine
WO2007107798A1 (fr) * 2006-03-03 2007-09-27 Pavlos Ioakeim Dispositif de captage de l'énergie éolienne par la création d'un courant d'air intermédiaire à vitesse supérieure
FR2914371A1 (fr) * 2007-04-02 2008-10-03 Michel Armand Appareil a effet parietal pour aerogenerateur
WO2009090506A2 (fr) * 2008-01-16 2009-07-23 Wickramasinghe Neville Saumyas Régulateur de débit d'air
CN102297086A (zh) * 2010-06-22 2011-12-28 孟英志 一种改进型提高风机或风力发电机效率的装置
AT509995A4 (de) * 2010-08-04 2012-01-15 Penz Alois Windkraftanlage
AT510208A1 (de) * 2010-08-04 2012-02-15 Penz Alois Windkraftanlage
US20150260155A1 (en) * 2014-03-12 2015-09-17 Phillip Ridings Wind turbine generator

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE729534C (de) * 1940-06-18 1942-12-17 Arno Fischer Windturbinenaggregat
DE743672C (de) * 1940-03-12 1943-12-30 Arno Fischer Stromerzeuger, insbesondere mit Windantrieb sowie mit Innen- und Aussenlaeufern
FR1035621A (fr) * 1950-01-23 1953-08-26 John Brown & Company Ltd Perfectionnements aux supports pour mécanismes rotatifs ou oscillants, en déséquilibre, fonctionnant normalement à vitesse pratiquement constante
US4087196A (en) * 1975-11-17 1978-05-02 George John Kronmiller Apparatus for deriving energy from moving gas streams
US4720640A (en) * 1985-09-23 1988-01-19 Turbostar, Inc. Fluid powered electrical generator
US5464320A (en) * 1993-06-02 1995-11-07 Finney; Clifton D. Superventuri power source
DE20213062U1 (de) * 2002-08-26 2002-11-21 Hinz Volker Windkraftanlage mit kombinierbaren Systemen zur Energiegewinnung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE743672C (de) * 1940-03-12 1943-12-30 Arno Fischer Stromerzeuger, insbesondere mit Windantrieb sowie mit Innen- und Aussenlaeufern
DE729534C (de) * 1940-06-18 1942-12-17 Arno Fischer Windturbinenaggregat
FR1035621A (fr) * 1950-01-23 1953-08-26 John Brown & Company Ltd Perfectionnements aux supports pour mécanismes rotatifs ou oscillants, en déséquilibre, fonctionnant normalement à vitesse pratiquement constante
US4087196A (en) * 1975-11-17 1978-05-02 George John Kronmiller Apparatus for deriving energy from moving gas streams
US4720640A (en) * 1985-09-23 1988-01-19 Turbostar, Inc. Fluid powered electrical generator
US5464320A (en) * 1993-06-02 1995-11-07 Finney; Clifton D. Superventuri power source
DE20213062U1 (de) * 2002-08-26 2002-11-21 Hinz Volker Windkraftanlage mit kombinierbaren Systemen zur Energiegewinnung

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2423339A (en) * 2004-12-23 2006-08-23 Sub Sea Turbines Ltd Bi-directional turbine
WO2007107798A1 (fr) * 2006-03-03 2007-09-27 Pavlos Ioakeim Dispositif de captage de l'énergie éolienne par la création d'un courant d'air intermédiaire à vitesse supérieure
FR2914371A1 (fr) * 2007-04-02 2008-10-03 Michel Armand Appareil a effet parietal pour aerogenerateur
WO2009090506A2 (fr) * 2008-01-16 2009-07-23 Wickramasinghe Neville Saumyas Régulateur de débit d'air
WO2009090506A3 (fr) * 2008-01-16 2009-11-12 Wickramasinghe Neville Saumyas Régulateur de débit d'air
CN102297086A (zh) * 2010-06-22 2011-12-28 孟英志 一种改进型提高风机或风力发电机效率的装置
AT509995A4 (de) * 2010-08-04 2012-01-15 Penz Alois Windkraftanlage
AT509995B1 (de) * 2010-08-04 2012-01-15 Penz Alois Windkraftanlage
WO2012016260A2 (fr) 2010-08-04 2012-02-09 Alois Penz Éolienne
AT510208A1 (de) * 2010-08-04 2012-02-15 Penz Alois Windkraftanlage
WO2012016260A3 (fr) * 2010-08-04 2012-05-03 Alois Penz Éolienne
AT510208B1 (de) * 2010-08-04 2012-05-15 Penz Alois Windkraftanlage
US20150260155A1 (en) * 2014-03-12 2015-09-17 Phillip Ridings Wind turbine generator

Also Published As

Publication number Publication date
AU2003293712A1 (en) 2005-06-17
EP1702159A1 (fr) 2006-09-20

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