ITRE20100008A1 - BLADES FOR THE CONVERSION OF KINETIC ENERGY OF THE WIND IN MOTOR POWER FIXED TO A VERTICAL AXIS HUB. - Google Patents
BLADES FOR THE CONVERSION OF KINETIC ENERGY OF THE WIND IN MOTOR POWER FIXED TO A VERTICAL AXIS HUB. Download PDFInfo
- Publication number
- ITRE20100008A1 ITRE20100008A1 IT000008A ITRE20100008A ITRE20100008A1 IT RE20100008 A1 ITRE20100008 A1 IT RE20100008A1 IT 000008 A IT000008 A IT 000008A IT RE20100008 A ITRE20100008 A IT RE20100008A IT RE20100008 A1 ITRE20100008 A1 IT RE20100008A1
- Authority
- IT
- Italy
- Prior art keywords
- blades
- deflectors
- fact
- wind
- vertical axis
- Prior art date
Links
- 238000006243 chemical reaction Methods 0.000 title claims description 3
- 230000033001 locomotion Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 4
- UJCHIZDEQZMODR-BYPYZUCNSA-N (2r)-2-acetamido-3-sulfanylpropanamide Chemical class CC(=O)N[C@@H](CS)C(N)=O UJCHIZDEQZMODR-BYPYZUCNSA-N 0.000 description 2
- 241001669680 Dormitator maculatus Species 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000001131 transforming effect Effects 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
- F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor the axis being vertical
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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
- F03D3/062—Rotors characterised by their construction elements
-
- 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
Description
DESCRIZIONE di invenzione industriale avente per titolo: DESCRIPTION of industrial invention having as title:
“ PALE PER LA CONVERSIONE DELL’ENERGIA CINETICA DEL VENTO IN ENERGIA MOTRICE FISSATE A UN MOZZO AD ASSE VERTICALE” "BLADES FOR THE CONVERSION OF THE KINETIC ENERGY OF THE WIND INTO MOTOR ENERGY FIXED TO A VERTICAL AXIS HUB"
CAMPO DI APPLICAZIONE FIELD OF APPLICATION
La presente invenzione è stata concepita per aumentare il rendimento di trasformazione dell’energia cinetica del vento in energia motrice che può essere sfruttata direttamente per il pompaggio di liquidi oppure essere convertita in energia elettrica attraverso un aerogeneratore. The present invention was conceived to increase the efficiency of transforming the kinetic energy of the wind into motive energy that can be used directly for pumping liquids or be converted into electrical energy through a wind generator.
La particolare geometria aerodinamica delle pale si presta a essere integrata anche nei nuovi mezzi di locomozione elettrici per ricaricare le batterie durante la marcia contribuendo ad allungare la percorrenza. The particular aerodynamic geometry of the blades lends itself to being integrated also in the new electric means of locomotion to recharge the batteries while driving, helping to lengthen the distance.
STATO DELLA TECNICA STATE OF THE TECHNIQUE
Nel campo dello sfruttamento dell’energia del vento, oggi sono noti diversi sistemi ad asse verticale con svariate soluzioni aerodinamiche. In the field of the exploitation of wind energy, several vertical axis systems with various aerodynamic solutions are known today.
Si può vedere per esempio in “http://it.Wikipedia.org “Turbina a vento Savonius/ e “http://en.wikipedia.org/wiki/Darrieus_wind_turbine” You can see for example in "http://it.Wikipedia.org" Savonius wind turbine / and "http://en.wikipedia.org/wiki/Darrieus_wind_turbine"
oppure “http://www.energoclub.it/doceboCms/page/104/Ad_asse_verticale.htmr o “http://peswiki.eom/index.php/Directory:Vertical_Axis_Wind_Turbines”. or “http://www.energoclub.it/doceboCms/page/104/Ad_asse_verticale.htmr or“ http: //peswiki.eom/index.php/Directory: Vertical_Axis_Wind_Turbines ”.
Alcuni sistemi iniziano la rotazione solo quando la velocità del vento è maggiore di 2-3 m/s, mentre altri hanno scarsi rendimenti e coppie incostanti. Some systems only start spinning when the wind speed is greater than 2-3 m / s, while others have poor yields and erratic torques.
Per ultimo vi sono soluzioni tecniche che comportano un elevato costo di costruzione e manutenzione. Finally, there are technical solutions that involve a high cost of construction and maintenance.
Scopo del trovato è migliorare i suddetti inconvenienti sfruttando al massimo i venti deboli e inoltre consenta realizzazioni assai semplici. The object of the invention is to improve the aforementioned drawbacks by making the most of the weak winds and also to allow very simple embodiments.
ESPOSIZIONE DEL TROVATO EXPOSURE OF THE FOUND
La presente invenzione è esposta più in dettaglio nel seguito con l'ausilio dei disegni che ne rappresentano un esempio schematico di esecuzione. The present invention is set out in more detail below with the aid of the drawings which represent a schematic example of its execution.
Nell'allegate tavole di disegni la Fig. 1 rappresenta le pale in vista prospettica; la Fig. 2 mostra il profilo delle pale in sezione longitudinale; la Fig. 3 e 4 ci aiutano a costruire il profilo della pala, mentre le Fig. 5, 6, 7 e 8 riportano il ciclo rotatorio delle pale evidenziando come si distribuiscono le forze aerodinamiche nel trovato. Come si vede dalla Fig. 1 la struttura di ogni pala è costituita (1) da due tubolari paralleli collegati al mozzo (2), tra questi verranno fissati perpendicolarmente i deflettori (3), (4), (5) dal lato bordo d'uscita (6), che è la parte finale del deflettore piano-convesso, con distanze definite dal profilo desiderato Fig. 3 e 4. In the attached drawing tables, Fig. 1 represents the blades in a perspective view; Fig. 2 shows the profile of the blades in longitudinal section; Fig. 3 and 4 help us to construct the profile of the blade, while Figs. 5, 6, 7 and 8 show the rotational cycle of the blades, highlighting how the aerodynamic forces are distributed in the invention. As can be seen from Fig. 1 the structure of each blade consists (1) of two parallel tubes connected to the hub (2), between these the deflectors (3), (4), (5) will be fixed perpendicularly from the edge side d outlet (6), which is the final part of the plano-convex deflector, with distances defined from the desired profile Fig. 3 and 4.
La distanza dei due tubolari è data dalla superficie alare che si vuole ottenere, quindi variabile da un rapporto 1/1 a 1/100 della lunghezza pala. The distance of the two tubes is given by the wing surface to be obtained, therefore variable from a ratio 1/1 to 1/100 of the blade length.
La parte importante è disegnare il profilo pala in sezione longitudinale Fig. 3. Si cerca un profilo alare di riferimento Fig. 4 della serie NACA o altri, si estrapola il profilo partendo dal bordo d'entrata fino alla curva massima del dorso, e poi riportiamo il tutto con relativa tabella dimensionale sul foglio. The important part is to draw the blade profile in longitudinal section Fig. 3. We search for a reference airfoil Fig. 4 of the NACA series or others, we extrapolate the profile starting from the leading edge up to the maximum curve of the back, and then we report everything with its dimensional table on the sheet.
La tabella è composta da tre serie di numeri contraddistinti rispettivamente con x, ys e yi. The table consists of three series of numbers marked respectively with x, ys and yi.
La prima “x” indica i valori in percentuale della corda, da 0 a 100, presa sulla linea di riferimento del nostro profilo. The first "x" indicates the percentage values of the chord, from 0 to 100, taken on the reference line of our profile.
Il punto di partenza della scala delle x (origine), c costituiscono le ascisse del grafico è nel nostro caso il bordo d'entrata del prc prelevato. The starting point of the x scale (origin), c constitute the abscissas of the graph is in our case the leading edge of the prc taken.
Le altre due serie di numeri, ys e yi, costituiscono le ordinate sempre in percentuale della corda da prendersi sulla alla corda passante per il corrispondente punto x, e partendo da tale punt The other two series of numbers, ys and yi, constitute the ordinates always as a percentage of the chord to be taken on the chord passing through the corresponding point x, and starting from this point
La “ys” identifica il punto della curva superiore 'yi” il punto inferiore del piano. Ora riportiamo i punti sul disegno etracciamo le rette dal punto ys1 a yi1 dal punto ys2 a yi2 e dal punto ys3 a yi3, così tte la larghezza e la posizione dei nostri deflettori piano-convessi. The “ys” identifies the point of the upper curve 'yi ”the lower point of the plane. Now we bring the points back to the drawing and draw the lines from point ys1 to yi1 from point ys2 to yi2 and from point ys3 to yi3, thus tte the width and position of our plano-convex deflectors.
Il profilo dei deflettori piano convessi è da ricercai come per la pala nella serie profili alari NACA o altri, la scelta del profilo è sen stato uno dei problemi principali dei progettisti, in questo caso abbiamo come riferimento il profilo alare “Clark Y". The profile of the flat convex deflectors is to be researched as for the blade in the NACA or other airfoil series, the choice of the profile has been one of the main problems of the designers, in this case we refer to the “Clark Y” airfoil.
Vediamo un ciclo rotatorio delle pale in sezione le il flusso d'aria (V) Fig. 5 genera un effetto di pressione (P) sul ventri dei deflettori della pala (A) mentre sul dorso dei medesimi si ha un effetto di (D), la risultante forza aerodinamica genera una spinta alla pala (A) in senso orario, nel contempo sul dorso dei deflettori della pala (B) si ha un effe sempre di pressione (Q), ma minore grazie al profilo, quindi la pala (B) non si alla rotazione. We see a rotational cycle of the blades in section and the air flow (V) Fig. 5 generates a pressure effect (P) on the belly of the blade deflectors (A) while on the back of the same there is an effect of (D) , the resulting aerodynamic force generates a thrust to the blade (A) in a clockwise direction, at the same time on the back of the blade deflectors (B) there is always a pressure effect (Q), but less thanks to the profile, therefore the blade (B ) not to rotation.
In Fig. 6 il flusso d’aria genera ai deflettori delle pale (A) e (B) l’effetto di maggiore forza aerodinamica, cosi facendo la rotazione può continuare in Fig. 7 dove : la migliore condizione sia sui deflettori che sul profilo delle due pale, per poi passare alla Fig. 8 e ultimare il ciclo in Fig. 5. In Fig. 6 the air flow generates the effect of greater aerodynamic force on the deflectors of the blades (A) and (B), in this way the rotation can continue in Fig. 7 where: the best condition both on the deflectors and on the profile of the two blades, then move on to Fig. 8 and complete the cycle in Fig. 5.
Nel ciclo di rotazione, si hanno dei passaggi come da Fig. 6 a Fig. 7 e da Fig. 7 a Fig. 8 dove il profilo creato dalle pale Fig. 3, consente di ottenere un moto uniforme e stabile. In the rotation cycle, there are passages as from Fig. 6 to Fig. 7 and from Fig. 7 to Fig. 8 where the profile created by the blades Fig. 3, allows to obtain a uniform and stable motion.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000008A ITRE20100008A1 (en) | 2010-02-12 | 2010-02-12 | BLADES FOR THE CONVERSION OF KINETIC ENERGY OF THE WIND IN MOTOR POWER FIXED TO A VERTICAL AXIS HUB. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000008A ITRE20100008A1 (en) | 2010-02-12 | 2010-02-12 | BLADES FOR THE CONVERSION OF KINETIC ENERGY OF THE WIND IN MOTOR POWER FIXED TO A VERTICAL AXIS HUB. |
Publications (1)
Publication Number | Publication Date |
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ITRE20100008A1 true ITRE20100008A1 (en) | 2011-08-13 |
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IT000008A ITRE20100008A1 (en) | 2010-02-12 | 2010-02-12 | BLADES FOR THE CONVERSION OF KINETIC ENERGY OF THE WIND IN MOTOR POWER FIXED TO A VERTICAL AXIS HUB. |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR613455A (en) * | 1926-03-31 | 1926-11-18 | Water wheel | |
WO1988009873A1 (en) * | 1987-06-10 | 1988-12-15 | Alfred Wilhelm | Wind power engine |
GB2241747A (en) * | 1990-02-24 | 1991-09-11 | John Jason Paul Goodden | Turbine or impeller rotor |
US5256034A (en) * | 1991-04-19 | 1993-10-26 | Sultzbaugh John S | Variable pitch propeller for use in conjunction with a vertical axis wind turbine |
WO2006102719A1 (en) * | 2005-04-01 | 2006-10-05 | Edo Dol | A vertical axis windmill |
WO2010008206A2 (en) * | 2008-07-16 | 2010-01-21 | Han Joo-Hak | Vertical axis, floating wind turbine |
-
2010
- 2010-02-12 IT IT000008A patent/ITRE20100008A1/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR613455A (en) * | 1926-03-31 | 1926-11-18 | Water wheel | |
WO1988009873A1 (en) * | 1987-06-10 | 1988-12-15 | Alfred Wilhelm | Wind power engine |
GB2241747A (en) * | 1990-02-24 | 1991-09-11 | John Jason Paul Goodden | Turbine or impeller rotor |
US5256034A (en) * | 1991-04-19 | 1993-10-26 | Sultzbaugh John S | Variable pitch propeller for use in conjunction with a vertical axis wind turbine |
WO2006102719A1 (en) * | 2005-04-01 | 2006-10-05 | Edo Dol | A vertical axis windmill |
WO2010008206A2 (en) * | 2008-07-16 | 2010-01-21 | Han Joo-Hak | Vertical axis, floating wind turbine |
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