AT11093U1 - ROTOR BLADE FOR A DARRIEUS ROTOR - Google Patents
ROTOR BLADE FOR A DARRIEUS ROTOR Download PDFInfo
- Publication number
- AT11093U1 AT11093U1 AT0037108U AT3712008U AT11093U1 AT 11093 U1 AT11093 U1 AT 11093U1 AT 0037108 U AT0037108 U AT 0037108U AT 3712008 U AT3712008 U AT 3712008U AT 11093 U1 AT11093 U1 AT 11093U1
- Authority
- AT
- Austria
- Prior art keywords
- rotor blade
- rotor
- axis
- rotation
- leading edge
- Prior art date
Links
- 238000013459 approach Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 1
Classifications
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- 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
- F05B2240/20—Rotors
- F05B2240/21—Rotors for wind turbines
- F05B2240/211—Rotors for wind turbines with vertical axis
- F05B2240/214—Rotors for wind turbines with vertical axis of the Musgrove or "H"-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
- F05B2240/90—Mounting on supporting structures or systems
- F05B2240/91—Mounting on supporting structures or systems on a stationary structure
- F05B2240/912—Mounting on supporting structures or systems on a stationary structure on a tower
-
- 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
- F05B2250/70—Shape
- F05B2250/71—Shape curved
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (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)
- Wind Motors (AREA)
- Rotary Pumps (AREA)
Abstract
Die Erfindung betrifft ein Rotorblatt für einen Darrieus-Rotor in H-Bauweise. Um Geräuschentwicklung zu minimieren und um die Anlaufeigenschaften zu verbessern, sind die oberen und unteren Enden der Rotorblätter gegenüber dem restlichen Rotorblatt etwas von der Rotorachse weg nach außen gebogen und die oberen und unteren Teile der Anströmkante der Rotorblätter in der Richtung der betriebsmäßigen Bewegung gegenüber dem mittleren Teil der Anströmkante etwas nach hinten gekrümmt.The invention relates to a rotor blade for a Darrieus rotor in H-construction. In order to minimize noise and to improve start-up characteristics, the upper and lower ends of the rotor blades are bent slightly outward of the rotor blade and the upper and lower portions of the leading edge of the rotor blades in the direction of operative movement relative to the center Part of the leading edge curved slightly backwards.
Description
österreichisches Patentamt AT 11 093 U1 2010-04-15Austrian Patent Office AT 11 093 U1 2010-04-15
Beschreibung [0001] Die Erfindung betrifft ein Rotorblatt für einen Darrieus-Rotor in H-Bauweise für eine Windenergieanlage.Description: [0001] The invention relates to a rotor blade for a Hurricane Darrieus rotor for a wind energy plant.
[0002] Ein Darrieus-Rotor ist eine Windkraftmaschine, durch welche Bewegungsenergie der als Wind strömenden Luft in Bewegungsenergie eines Rotors umgewandelt wird, wobei die Drehachse des Rotors im wesentlichen normal zur Strömungsrichtung des Windes liegt. Windkraftanlagen mit einem Darrieus-Rotor sind kostengünstig und robust und vor allem für Kleinanlagen, welche beispielsweise auf Gebäudedächern aufgestellt sein können, von Vorteil, da sie auch bei häufig wechselnden Windrichtungen gut funktionieren. Bei der H-Bauweise eines Darrieus-Rotors sind zwei sich zumindest annähernd in vertikaler Richtung erstreckende Rotorblätter durch mindestens eine Verbindungsstrebe miteinander verbunden und gehalten. Die Verbindungsstrebe ist in ihrer Längsmitte um eine vertikale Achse drehbar gelagert. Eine in den wesentlichen Bereichen typische Bauweise für eine Windkraftanlage mit Darrieus-Rotor in H-Bauweise ist in der DE 20 2007 010 873 U1 gezeigt. Die normal zur Rotationsachse liegende Profilquerschnittsform eines Darrieus-Rotorblattes ist etwa gleich einem Tragflächenprofil.A Darrieus rotor is a wind power machine, which kinetic energy of the air flowing as wind is converted into kinetic energy of a rotor, wherein the axis of rotation of the rotor is substantially normal to the flow direction of the wind. Wind turbines with a Darrieus rotor are inexpensive and robust and especially for small plants, which can be placed, for example, on building roofs, advantageous because they work well even with frequently changing wind directions. In the H-construction of a Darrieus rotor two at least approximately in the vertical direction extending rotor blades are connected and held together by at least one connecting strut. The connecting strut is rotatably mounted about a vertical axis in its longitudinal center. A typical in the essential areas of construction for a wind turbine with Darrieus rotor in H-construction is shown in DE 20 2007 010 873 U1. The profile cross-sectional shape of a Darrieus rotor blade that is normal to the axis of rotation is approximately equal to an airfoil profile.
[0003] Problematisch an Darrieus-Rotoren ist, dass sie zum Vibrieren neigen, dass sie einen relativ starken Wind zum Starten brauchen und dass sie starke Geräusche hervorrufen können.The problem with Darrieus rotors is that they tend to vibrate, that they need a relatively strong wind to start and that they can cause strong noises.
[0004] Die der Erfindung zu Grunde liegende Aufgabe besteht darin, eine Rotorblattform für einen Darrieus-Rotor in H-Bauweise bereitzustellen, welche bezüglich Geräuschentwicklung und Anlaufeigenschaften gegenüber bekannten Bauformen verbessert ist.The object underlying the invention is to provide a rotor blade for a Darrieus rotor in H-type, which is improved in terms of noise and start-up characteristics over known designs.
[0005] Zum Lösen der Aufgabe ist vorgesehen, die oberen und unteren Enden der Rotorblätter gegenüber dem restlichen Rotorblatt etwas von der Rotorachse weg nach außen gebogen auszubilden und den oberen und unteren Teil der Anströmkante der Rotorblätter in der Richtung der betriebsmäßigen Bewegung gegenüber dem mittleren Teil der Anströmkante etwas nach hinten zu krümmen.To solve the problem is provided, the upper and lower ends of the rotor blades against the rest of the rotor blade slightly bent away from the rotor axis outwardly form and the upper and lower part of the leading edge of the rotor blades in the direction of operational movement relative to the central part bend the leading edge slightly to the rear.
[0006] Die Erfindung wird an Hand von zwei Prinzipskizzen veranschaulicht: [0007] Fig. 1: zeigt einen beispielhaften Darrieus-Rotor in Schrägrissansicht.The invention will be illustrated by means of two schematic diagrams: Figure 1: shows an exemplary Darrieus rotor in oblique view.
[0008] Fig. 2: zeigt ein Rotorblatt des Rotors von Fig. 1, wobei die Blickrichtung gleich derFig. 2: shows a rotor blade of the rotor of Fig. 1, wherein the viewing direction equal to
Bewegungsrichtung des Rotorblattes ist, welches um eine links vom Rotorblatt angeordnete, vertikale Achse rotiert.Movement direction of the rotor blade, which rotates about a left of the rotor blade arranged, vertical axis.
[0009] Fig. 3: zeigt ein Rotorblatt des Rotors von Fig. 1, wobei die Blickrichtung radial auf dieFig. 3 shows a rotor blade of the rotor of Fig. 1, wherein the viewing direction radially on the
Rotorachse zu gerichtet ist.Rotor axis is directed to.
[0010] Durch die dargestellte Form des Rotorblattes werden gute Anlaufeigenschaften und geringe Geräuschentwicklung erreicht. 1/5The illustrated shape of the rotor blade good start-up properties and low noise are achieved. 1.5
Claims (4)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0037108U AT11093U1 (en) | 2008-07-03 | 2008-07-03 | ROTOR BLADE FOR A DARRIEUS ROTOR |
PCT/AT2009/000263 WO2010000007A2 (en) | 2008-07-03 | 2009-07-03 | Rotor blade for a darrieus rotor |
DE202009009188U DE202009009188U1 (en) | 2008-07-03 | 2009-07-03 | Rotor blade for a Darrieus rotor |
EP09771830A EP2297457A2 (en) | 2008-07-03 | 2009-07-03 | Rotor blade for a darrieus rotor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0037108U AT11093U1 (en) | 2008-07-03 | 2008-07-03 | ROTOR BLADE FOR A DARRIEUS ROTOR |
Publications (1)
Publication Number | Publication Date |
---|---|
AT11093U1 true AT11093U1 (en) | 2010-04-15 |
Family
ID=41051985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT0037108U AT11093U1 (en) | 2008-07-03 | 2008-07-03 | ROTOR BLADE FOR A DARRIEUS ROTOR |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2297457A2 (en) |
AT (1) | AT11093U1 (en) |
DE (1) | DE202009009188U1 (en) |
WO (1) | WO2010000007A2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8877744B2 (en) | 2011-04-04 | 2014-11-04 | Hoffmann-La Roche Inc. | 1,4-Oxazepines as BACE1 and/or BACE2 inhibitors |
CN108050001B (en) * | 2017-11-08 | 2019-09-27 | 西安理工大学 | A kind of bionic blade of the vertical-axis tide energy hydraulic turbine |
GB2606390B (en) * | 2021-05-06 | 2023-06-07 | Achelous Energy Ltd | Systems and devices for a floating renewable power station |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4130380A (en) * | 1976-05-13 | 1978-12-19 | Kaiser Heinz W | Wind powered turbine and airfoil construction |
GB2082260B (en) * | 1980-08-20 | 1984-01-25 | Nianbilla Co Ltd | Vertical axis windmill |
DE3425313A1 (en) * | 1984-07-10 | 1986-01-23 | Erich Herter | Wind turbine |
FR2865777B1 (en) * | 2004-02-04 | 2006-05-05 | Inst Nat Polytech Grenoble | HYDRAULIC TURBOMACHINE |
DE202007010873U1 (en) | 2007-08-03 | 2007-10-04 | Fiber-Tech Products Gmbh | Wind power machine |
-
2008
- 2008-07-03 AT AT0037108U patent/AT11093U1/en not_active IP Right Cessation
-
2009
- 2009-07-03 EP EP09771830A patent/EP2297457A2/en not_active Withdrawn
- 2009-07-03 DE DE202009009188U patent/DE202009009188U1/en not_active Expired - Lifetime
- 2009-07-03 WO PCT/AT2009/000263 patent/WO2010000007A2/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
DE202009009188U1 (en) | 2009-09-03 |
EP2297457A2 (en) | 2011-03-23 |
WO2010000007A2 (en) | 2010-01-07 |
WO2010000007A3 (en) | 2010-12-16 |
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MM01 | Lapse because of not paying annual fees |
Effective date: 20130731 |