WO2002095221A1 - Dispositif d'energie cinetique, en particulier dispositif d'energie eolienne - Google Patents

Dispositif d'energie cinetique, en particulier dispositif d'energie eolienne Download PDF

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Publication number
WO2002095221A1
WO2002095221A1 PCT/DE2002/001873 DE0201873W WO02095221A1 WO 2002095221 A1 WO2002095221 A1 WO 2002095221A1 DE 0201873 W DE0201873 W DE 0201873W WO 02095221 A1 WO02095221 A1 WO 02095221A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
flow energy
diffuser
diffuser element
wind
Prior art date
Application number
PCT/DE2002/001873
Other languages
German (de)
English (en)
Inventor
Gunter Krauss
Original Assignee
Gunter Krauss
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
Priority claimed from DE20108925U external-priority patent/DE20108925U1/de
Priority claimed from DE20207363U external-priority patent/DE20207363U1/de
Application filed by Gunter Krauss filed Critical Gunter Krauss
Publication of WO2002095221A1 publication Critical patent/WO2002095221A1/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 
    • F03D3/002—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
    • 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
    • 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
    • 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
    • F05B2250/00—Geometry
    • F05B2250/30—Arrangement of components
    • F05B2250/31—Arrangement of components according to the direction of their main axis or their axis of rotation
    • F05B2250/312—Arrangement of components according to the direction of their main axis or their axis of rotation the axes being parallel to each other
    • 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 invention relates to a flow energy installation, in particular a wind power installation, wherein a rotor with rotor blades rotating about a vertical axis is arranged on a mast and the rotation of the rotor generated by the wind flow is converted into electrical energy.
  • DE 85 33 964 U1 describes a horizontally acting wind vane motor which has a wind funnel which partially surrounds the wind vane and can be brought into the required wind direction via a wind vane.
  • the wind funnel is formed in a quarter circle in cross section.
  • DE 198 56 914 A1 describes a vertical wind rotor with an air suction surface formed on one arm and a system with a straight plate-shaped wind dividing plate is presented in DE 86 31 273.1. All three of the aforementioned solutions are disadvantageous in terms of flow technology.
  • a wind power plant with a vertical rotor and frontal flow is known, with which a funneling or suction is to be achieved by means of a special inlet surface construction, with which higher flow rates can be achieved.
  • a special construction of two inlet surfaces (diffuser surfaces) is intended to achieve an alignment in accordance with the direction of flow of the wind.
  • the object of the invention is to provide a wind turbine with a vertical rotor, in which the energy, in particular the kinetic energy of the flowing medium can be converted into other forms of energy with a high degree of efficiency, and which ensures reliable tracking of the system in accordance with the direction of the wind's inflow.
  • the object is achieved with the features of the first claim. Advantageous refinements result from the subclaims.
  • the wind turbine has a mast and a rotor rotating about a first vertical axis, a diffuser element being arranged at a defined distance from the rotor and being mounted about a second vertical axis.
  • the first and second vertical axes are spaced apart from one another.
  • the first vertical axis of the rotor is behind the second vertical axis of the diffuser element.
  • the rotor is there, e.g. when the wind direction changes, can be pivoted together with the diffuser element about the second vertical axis.
  • the diffuser element is pivotally mounted on the mast in its second vertical axis and the rotor is in turn connected to the diffuser element via at least one essentially horizontally extending connecting element.
  • the connecting element is preferably designed as a base and cover plate, between which the rotor is rotatably mounted about its first vertical axis.
  • two vertically extending diffuser elements are used on both sides of the rotor, between which base and cover plate extend.
  • An inflow opening is formed by the vertical edges of the diffuser elements pointing in the wind direction, and an outflow opening is formed by the vertical edges of the diffuser elements opposite thereto, which is delimited at the top and bottom by the base plate and cover plate.
  • these diffuser elements extend on one or both sides. If two diffuser elements are used, an inflow opening is formed in front of the rotor and an outflow opening behind the rotor. In the flow direction of the wind, the inflow opening tapers to a width that corresponds to approximately 50% of the diameter of the rotor. In contrast, the outflow opening widens after the rotor to approximately twice the diameter of the rotor. A first surface of the first diffuser element that runs vertically in the direction of flow is first concave and then convex in the direction of the rotor.
  • the first diffuser element From the windward edge of the first diffuser element In the direction of its edge in the area of the wind outlet, an elongated convex curvature extends beyond the diameter of the rotor, which is followed by a concave curvature. In the direction of the rotor, the first diffuser element has a curvature that follows the diameter profile of the rotor.
  • the second diffuser element is also arranged to run vertically on the side of the rotor opposite the first diffuser element.
  • the diffuser elements are attached to a base plate on which the rotor is also rotatably mounted. The base plate is pivoted on a mast.
  • the diffuser elements are connected to the base plate and the rotor is arranged between the base plate and the cover plate, these together perform the pivoting movement about the vertical second axis.
  • the axes of the base plate and the rotor are spaced apart from one another. This ensures better tracking of the system depending on the wind direction.
  • the one diffuser element is preferably curved radially outward in such a way that it is adapted to the course of an envelope circle spanning the ends of the rotor blades pointing outward.
  • the inner radius of curvature of the diffuser element is selected according to the desired distance from the rotor blades.
  • the length of the diffuser element should correspond approximately to the distance between the outwardly facing edges of two rotor blades.
  • the pivoting movement of the diffuser element can e.g. depending on a wind vane that can be rotated by the wind.
  • the diffuser element adjusts itself in accordance with the wind direction in the case of a pivot axis spaced apart from the rotor axis.
  • the height of the diffuser element should correspond approximately to the height of the rotor.
  • Fig. 2 Section A-A acc. Fig. 1
  • Fig. 4 top view acc. Fig. 3,
  • Fig. 9 Schematic representation of the suspension of a rotor by means of two
  • Hg. 11 schematic representation of the use of only one diffuser element in plan view.
  • the wind turbine is gem.
  • Fig. 1 essentially from a mast 1, on which the base plate 2 is rotatably mounted.
  • a first 4 and a second 5 diffuser element are arranged vertically on the base plate 2 on both sides of the rotor 3.
  • the wind turbine closes at the top by means of a cover plate 6.
  • the rotor 3 is covered by the first diffuser element 4 to 50% of its diameter, so that the flow against the rotor is 50% of its width.
  • 2 shows the section AA according to FIG. 1.
  • the first 4 and the second 5 diffuser element sit on the base plate 2.
  • the rotor 3 is arranged in between.
  • the first diffuser element 4 has an edge 4.1 in the wind direction and the second diffuser element 5 has an edge 5.1, which form the inflow opening ES.
  • the Both edges 4.1, 5.1 project beyond the outer diameter of the rotor in the wind direction.
  • the distance II between the two edges 4.1, 5.1 corresponds approximately to the rotor diameter D.
  • the first diffuser element 4 has a further edge 4.2 in the outflow direction of the wind.
  • a third edge 4.3 is provided on the first diffuser element 4, which extends approximately to half the rotor diameter.
  • a diffuser surface 4a extends between the first edge 4.1 and the second edge 4.2, a diffuser surface 4b between the second edge 4.2 and the third edge 4.3 and a diffuser surface 4c between the first edge 4.1 and the third edge 4.3.
  • the first diffuser surface 4a extends convexly from the edge 4.1 to beyond the rotor in a large arc, which is followed by a concave curvature up to the edge 4.2.
  • the diffuser surface 4b initially runs from the edge 4.2 into a convex arc, which, following the course of the rotor, is followed by a concave curvature up to the edge 4.3. From the edge 4.1 to the edge 4.3, the diffuser surface 4c first has a concave and then a convex curvature.
  • the second diffuser element 5 has an edge 5.2 in the direction of the wind outlet and is designed in the shape of an airfoil in its cross section.
  • the first diffuser element has a diffuser surface 5a on the outside and a diffuser surface 5b in the direction of the rotor.
  • the course of the diffuser surface 5a is designed as a mirror image of the surface 4a.
  • the surface 5b extends up to the rotor 3 in a convex curvature, which is followed by a concave curvature approximately in the middle of the rotor 3, from which the surface 5b extends in a convexly curved arc up to the edge 5.2. From the center line of the rotor 3 in the outflow direction, the surfaces 4b and 5b have approximately the same course in mirror image.
  • the distance 12 delimiting the inflow opening ES between the edge 4.3 and the surface 5b is approximately 0.5xD.
  • the distance 13 of the edges 4.2 and 5.2 forming the outflow opening is preferably approximately 2xD.
  • the rotor in the front view is shown in FIG. 3 and in the top view in FIG. 4. It has four circular disk-shaped rotor disks 3 which are arranged in alignment one above the other and which are connected to one another by a central, axial, elongated cylindrical axis A. On the rotor disks 3, three rotor blades 4 are arranged.
  • the rotor blades 3.1 are arched in the shape of an airfoil and extend radially inward from the circumference of the rotor disks 7 in a curved or curved line. An outer longitudinal edge of the rotor blades 3.1 closes with the circumference of the rotor disks 7.
  • the inner longitudinal edges of the rotor blades 3.1 face the concave surface of the next rotor blade 3.1.
  • Three vertical rotor blades 4 extend between the upper and lower rotor plates 7, penetrating the other two rotor plates 7.
  • the rotor blades 4 are designed in the manner of a vertically oriented plate.
  • FIG. 5 The top view of a base plate 2 is shown in FIG. 5. The position of the rotor (3) with the rotor blades 3.1 is indicated.
  • the first axis A1 forms the axis of rotation of the rotor (3) between the base and cover plates 2 and 6, the second axis A2 the pivot axis D of the base plate 2 on the mast 1 (FIG. 1).
  • FIG. 6 shows the cross section of the first diffuser element 4 and FIG. 7 shows the cross section of the second diffuser element 5.
  • FIG. 8 the schematic diagram of the mounting of the rotor 3 and base plate 2 is shown in side view.
  • the base plate 2 is pivotally mounted on the mast 1 in the first axis A2.
  • the further elements of the wind turbine are arranged on the base plate 2.
  • the rotor 3 is rotatably mounted in a first vertical axis A1 between the base plate 2 and the cover plate 6.
  • the two axes A1 and A2 are arranged at a distance b from one another.
  • the generator G is preferably arranged in the mast 1.
  • the transmission of the rotary movement of the rotor 3 to the rotor (rotor) of the generator G takes place e.g. via toothed belt Z, which is arranged in a housing 10.
  • the base plate 2 sits on the housing which is open at the top.
  • the pivotable mounting about the second vertical axis A2 thus also takes place via the housing 10
  • FIG. 1 A further variant using only one diffuser element 4 in a top view is shown in FIG. 1, the distance between the rotor 3 and the closure flap 8 before and after the rotor also being widened in a funnel shape.
  • the diffuser element 4 is provided below and above with a horizontal base plate 2 and cover plate 6, between which the rotor 3 is mounted in the axis A1.
  • the diffuser element 4 is mounted in the second vertical axis A2 on the mast (not shown here).
  • the invention ensures reliable tracking of the diffuser elements and thus the inflow opening in accordance with the wind direction.
  • the entire structure of the diffuser element attached to the mast and the rotor rotatably suspended from it rotates due to its structural design like a wind vane depending on the wind direction.
  • the constructive design of the diffuser elements reinforces the vacuum area and the suction effect behind the rotor, which significantly increases the speed of the rotor.
  • the aircraft wing profile also improves the running performance of the rotor due to its principle of buoyancy.

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

Abstract

L'invention concerne un dispositif d'énergie cinétique, en particulier un dispositif d'énergie éolienne, comprenant un mât ainsi qu'un rotor (3) décrivant une rotation autour d'un premier axe vertical (A1). Selon la présente invention, au moins un élément diffuseur (3, 4) s'étendant verticalement est situé à une distance définie du rotor (3). Cet élément diffuseur est fixé de manière à pouvoir pivoter autour d'un second axe vertical (A2), le premier axe vertical (A1) du rotor (3) se trouvant à une certaine distance du second axe vertical (A2) de l'élément diffuseur.
PCT/DE2002/001873 2001-05-23 2002-05-23 Dispositif d'energie cinetique, en particulier dispositif d'energie eolienne WO2002095221A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE20108925.4 2001-05-23
DE20108925U DE20108925U1 (de) 2001-05-23 2001-05-23 Strömungsenergieanlage, insbesondere Windkraftanlage
DE20207363.7 2002-05-08
DE20207363U DE20207363U1 (de) 2002-05-08 2002-05-08 Strömungsenergieanlage

Publications (1)

Publication Number Publication Date
WO2002095221A1 true WO2002095221A1 (fr) 2002-11-28

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ID=26057016

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PCT/DE2002/001873 WO2002095221A1 (fr) 2001-05-23 2002-05-23 Dispositif d'energie cinetique, en particulier dispositif d'energie eolienne

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WO (1) WO2002095221A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009021485A2 (fr) 2007-08-10 2009-02-19 Gunter Krauss Installation de production d'énergie par écoulement
WO2010012278A2 (fr) * 2008-07-29 2010-02-04 Gunter Krauss Installation d'énergie d'écoulement, en particulier éolienne
WO2011018651A2 (fr) 2009-08-10 2011-02-17 Cross-Flow Energy Company Limited Turbine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE810500C (de) * 1949-09-11 1951-08-09 Herbert Bosch Windturbine
FR2286954A1 (fr) * 1974-10-01 1976-04-30 Poupinet Georges Perfectionnements aux eoliennes ou turbines entrainees par la circulation d'un fluide
DE29920899U1 (de) * 1999-11-27 2000-03-02 Wagenknecht Markus Windkraftanlage mit Vertikalrotor und Frontalanströmung
DE20102051U1 (de) * 2001-01-31 2001-05-03 Sulz Adolf Windkraftanlage mit frontal angeströmten Vertikalrotoren

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE810500C (de) * 1949-09-11 1951-08-09 Herbert Bosch Windturbine
FR2286954A1 (fr) * 1974-10-01 1976-04-30 Poupinet Georges Perfectionnements aux eoliennes ou turbines entrainees par la circulation d'un fluide
DE29920899U1 (de) * 1999-11-27 2000-03-02 Wagenknecht Markus Windkraftanlage mit Vertikalrotor und Frontalanströmung
DE20102051U1 (de) * 2001-01-31 2001-05-03 Sulz Adolf Windkraftanlage mit frontal angeströmten Vertikalrotoren

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009021485A2 (fr) 2007-08-10 2009-02-19 Gunter Krauss Installation de production d'énergie par écoulement
WO2009036713A1 (fr) * 2007-08-10 2009-03-26 Gunter Krauss Installation de captation de l'énergie d'écoulement, en particulier éolienne
WO2009021485A3 (fr) * 2007-08-10 2009-04-09 Gunter Krauss Installation de production d'énergie par écoulement
US8154145B2 (en) 2007-08-10 2012-04-10 Gunter Krauss Flow energy installation
WO2010012278A2 (fr) * 2008-07-29 2010-02-04 Gunter Krauss Installation d'énergie d'écoulement, en particulier éolienne
DE102009035997A1 (de) 2008-07-29 2010-05-06 Krauss, Gunter Strömungsenergieanlage, insbesondere Windkraftanlage
WO2010012278A3 (fr) * 2008-07-29 2010-10-14 Gunter Krauss Installation d'énergie d'écoulement, en particulier éolienne
WO2011018651A2 (fr) 2009-08-10 2011-02-17 Cross-Flow Energy Company Limited Turbine

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