AT515392B1 - Back pressure pinwheel - Google Patents
Back pressure pinwheel Download PDFInfo
- Publication number
- AT515392B1 AT515392B1 ATA11/2014A AT112014A AT515392B1 AT 515392 B1 AT515392 B1 AT 515392B1 AT 112014 A AT112014 A AT 112014A AT 515392 B1 AT515392 B1 AT 515392B1
- Authority
- AT
- Austria
- Prior art keywords
- profile tube
- propeller
- wind turbine
- diameter
- region
- Prior art date
Links
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
- 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
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- 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
- F05B2240/133—Stators to collect or cause flow towards or away from turbines with a convergent-divergent guiding structure, e.g. a Venturi conduit
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- 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
- F05B2250/50—Inlet or outlet
- F05B2250/501—Inlet
- F05B2250/5012—Inlet concentrating only, i.e. with intercepting fluid flow cross sectional area not greater than the rest of the machine behind the inlet
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- 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
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)
- Wind Motors (AREA)
Abstract
Staudruck-Windrad mit einem bezüglich der Windradachse im Wesentlichen rohrförmigen, äußeren Windleitmittel (3, 9, 13) und einem bezüglich der Windradachse im Wesentlichen rohrförmigen, inneren Windleitmittel (2, 12), mit einem Propeller (1) innerhalb des inneren Windleitmittels (2, 12) in einem Bereich (8) mit gleichbleibendem Durchmesser und mit einem geschlossenen Profilrohr (11) stromabwärts des Propellers (1), das den aus dem Propeller (1) austretenden Luftstrom nach außen umlenkt und mit dem außerhalb des inneren Windleitmittels (2, 12) strömenden Luftstrom in einem Bereich (5) mit gleichbleibendem Innendurchmesser des äußeren Profilrohrs (13) vereinigt, sodass eine die Luft aus dem Windrad abführende Venturi-Düse gebildet wird. Das äußere Windleitmittel (3, 9, 13) weist stromauf- und stromabwärts des äußeren Profilrohrs (13) zur Windradachse parallel und geradlinig verlaufende und das äußere Profilrohr (13) verlängernde Abschnitte (3, 9) auf, das innere Windleitmittel (2, 12) weist stromaufwärts des inneren Profilrohrs (12) einen zur Windradachse parallel und geradlinig verlaufenden und das innere Profilrohr (12) verlängernden Abschnitt (2) auf und das geschlossene Profilrohr (11) lenkt den aus dem Propeller (1) austretenden Luftstrom um 90° um.Dynamic pressure wind turbine with an outer wind guide means (3, 9, 13) substantially tubular with respect to the wind turbine axle and an inner wind guide means (2, 12) substantially tubular with respect to the wind wheel axle, with a propeller (1) within the inner wind guide means (2 , 12) in a region (8) of constant diameter and with a closed profile tube (11) downstream of the propeller (1), which deflects the air flow emerging from the propeller (1) to the outside and with the outside of the inner Windleitmittels (2, 12) flowing air stream in a region (5) with a constant inner diameter of the outer profile tube (13) combined, so that the air from the wind turbine laxative Venturi nozzle is formed. The outer Windleitmittel (3, 9, 13) upstream and downstream of the outer profile tube (13) to the wind turbine parallel and rectilinear and the outer profile tube (13) extending portions (3, 9), the inner Windleitmittel (2, 12th ) has upstream of the inner profile tube (12) parallel to the wind turbine axis and rectilinear and the inner profile tube (12) extending section (2) and the closed profile tube (11) deflects the airflow exiting the propeller (1) by 90 ° ,
Description
Beschreibung [0001] Die Erfindung betrifft ein Windrad, insbesondere zur Erzeugung von elektrischer Energie.Description: [0001] The invention relates to a wind turbine, in particular for generating electrical energy.
[0002] In der FR 866053 A wird ein Windrad beschrieben, welches durch Windleitsyteme versucht, den Unterdrück hinter dem Propeller zu erhöhen, um den Wirkungsgrad des Windrades zu steigern. Als nachteilig erweist sich, dass der verursachte Rückstau vor dem Propeller, Turbulenzen vor und um das Windrad erzeugen kann, welches sich nachteilig für die Erzeugung eines Unterdrucks hinter dem Propeller erweisen kann.In FR 866053 A a wind turbine is described which attempts by Windleitsyteme to increase the negative pressure behind the propeller in order to increase the efficiency of the wind turbine. A disadvantage proves that the backflow caused before the propeller, turbulence before and can produce around the windmill, which can prove detrimental to the generation of a negative pressure behind the propeller.
[0003] Der Erfindung liegt demnach die Aufgabe zugrunde, eine Windkraftanlage zur Erzeugung von elektrischer Energie so zu verbessern, dass der erzeugte Staudruck vor dem Propeller eines Windrades genützt wird, um den Unterdrück hinter dem Propeller zu erhöhen und somit den Wirkungsgrad des Windrades zu steigern.The invention is therefore based on the object to improve a wind turbine for generating electrical energy so that the generated dynamic pressure is used in front of the propeller of a wind turbine to increase the negative pressure behind the propeller and thus to increase the efficiency of the wind turbine ,
[0004] Dies wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruchs 1 erreicht.This is inventively achieved by the characterizing features of claim 1.
[0005] Die Erfindung wird nun unter Bezugnahme auf ein Ausführungsbeispiel, welches in der Zeichnung schematisch dargestellt ist, weiter erläutert.The invention will now be further explained with reference to an embodiment which is shown schematically in the drawing.
[0006] Fig. 1 zeigt in einer Schnitt-Darstellung das Windrad [0007] Windräder auf Hausdächern sind eine Seltenheit. Das hier vorgeschlagen Windrad kann sehr leicht an ein Gebäude, vorzugsweise auf das Dach, montiert werden, weil die Windleitsysteme den Propeller und den Generator abschirmen. Somit könnte das Windrad als ein Designelement eines Daches konzipiert und realisiert werden, zum Beispiel auf einem Kamin.Fig. 1 shows a sectional view of the wind turbine [0007] Wind turbines on rooftops are a rarity. The wind turbine proposed here can very easily be mounted on a building, preferably on the roof, because the wind-control systems shield the propeller and the generator. Thus, the windmill could be conceived and realized as a design element of a roof, for example on a chimney.
[0008] Der Wind erzeugt am Propeller 1 einen Druck und versetzt diesen in Rotation, welcher einen Generator zur Erzeugung von elektrischer Energie antreibt. Dabei entweicht ein Teil der Luft durch den Propeller und ein anderer Teil staut sich am Propeller 1 und trägt dazu bei, dass der Druck vor dem Propeller steigt. Dadurch erhöht sich die Strömungsgeschwindigkeit an der Stelle 5 und bewirkt durch den Venturi Effekt eine Zunahme des Unterdrucks hinter dem Propeller 1.The wind generates a pressure on the propeller 1 and puts it in rotation, which drives a generator for generating electrical energy. Part of the air escapes through the propeller and another part jams on the propeller 1 and helps to increase the pressure in front of the propeller. This increases the flow velocity at the point 5 and causes an increase in the negative pressure behind the propeller 1 due to the Venturi effect.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA11/2014A AT515392B1 (en) | 2014-01-09 | 2014-01-09 | Back pressure pinwheel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA11/2014A AT515392B1 (en) | 2014-01-09 | 2014-01-09 | Back pressure pinwheel |
Publications (2)
Publication Number | Publication Date |
---|---|
AT515392A1 AT515392A1 (en) | 2015-08-15 |
AT515392B1 true AT515392B1 (en) | 2016-03-15 |
Family
ID=53773637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ATA11/2014A AT515392B1 (en) | 2014-01-09 | 2014-01-09 | Back pressure pinwheel |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT515392B1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR866053A (en) * | 1940-02-27 | 1941-06-16 | Device of air conduits creating pressures and depressions to improve the efficiency of wind engines | |
US4021135A (en) * | 1975-10-09 | 1977-05-03 | Pedersen Nicholas F | Wind turbine |
WO1998017912A1 (en) * | 1996-10-22 | 1998-04-30 | Veken Germaine V D | Hooded wind power engine |
EP1067286A1 (en) * | 1998-03-25 | 2001-01-10 | Igor Sergeevich Orlov | Windmill powerplant |
GB2450684A (en) * | 2007-07-02 | 2009-01-07 | Dynamic Wind Generators Ltd | Windturbine in a built-up area |
EP2206915A2 (en) * | 2008-12-25 | 2010-07-14 | Altenergy Ltd | Wind generator |
-
2014
- 2014-01-09 AT ATA11/2014A patent/AT515392B1/en not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR866053A (en) * | 1940-02-27 | 1941-06-16 | Device of air conduits creating pressures and depressions to improve the efficiency of wind engines | |
US4021135A (en) * | 1975-10-09 | 1977-05-03 | Pedersen Nicholas F | Wind turbine |
WO1998017912A1 (en) * | 1996-10-22 | 1998-04-30 | Veken Germaine V D | Hooded wind power engine |
EP1067286A1 (en) * | 1998-03-25 | 2001-01-10 | Igor Sergeevich Orlov | Windmill powerplant |
GB2450684A (en) * | 2007-07-02 | 2009-01-07 | Dynamic Wind Generators Ltd | Windturbine in a built-up area |
EP2206915A2 (en) * | 2008-12-25 | 2010-07-14 | Altenergy Ltd | Wind generator |
Also Published As
Publication number | Publication date |
---|---|
AT515392A1 (en) | 2015-08-15 |
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MM01 | Lapse because of not paying annual fees |
Effective date: 20190109 |