WO2008120026A2 - Eolienne à axe horizontal innovante présentant un rendement élevé - Google Patents

Eolienne à axe horizontal innovante présentant un rendement élevé Download PDF

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Publication number
WO2008120026A2
WO2008120026A2 PCT/GR2008/000020 GR2008000020W WO2008120026A2 WO 2008120026 A2 WO2008120026 A2 WO 2008120026A2 GR 2008000020 W GR2008000020 W GR 2008000020W WO 2008120026 A2 WO2008120026 A2 WO 2008120026A2
Authority
WO
WIPO (PCT)
Prior art keywords
row
blades
wind turbine
rotating
stationary
Prior art date
Application number
PCT/GR2008/000020
Other languages
English (en)
Other versions
WO2008120026A4 (fr
WO2008120026A3 (fr
Inventor
Konstantinos Chatjianastasiou
Original Assignee
Bosa Sa
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 Bosa Sa filed Critical Bosa Sa
Priority to EP08719104A priority Critical patent/EP2137405A2/fr
Publication of WO2008120026A2 publication Critical patent/WO2008120026A2/fr
Publication of WO2008120026A3 publication Critical patent/WO2008120026A3/fr
Publication of WO2008120026A4 publication Critical patent/WO2008120026A4/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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • 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
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • 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
    • F03D7/00—Controlling wind motors 
    • 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
    • F05B2240/12—Fluid guiding means, e.g. vanes
    • 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
    • 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
    • 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

Definitions

  • Subject invention is referred to horizontal axis, wind turbines, which include a rotor (7) absorbing energy from the wind, and through a gear-box rotate a generator.
  • Gear box and Generator (8) are housed either as horizontal extension of the power shaft (6), or at an angle decline to it.
  • Subject invention is characterized of the use of an innovative high efficiency rotor, providing high power to volume ratio, compared with existing designs.
  • Rotor is made up of two rows of blades, the Stationary and the Rotating one.
  • Stationary row (1) consists of a number of suitable blades installed to the peripheries of two rings, the external of which can be supported in a fixed base(9).
  • Rotating row (2) consists of another independent row of suitable blades fixed to the periphery of a rotating disc (10), connected at its center to the power shaft (6), that drives the generator through a mechanical train.
  • a cone (3) may cover the internal ring in the stationary row, the external ring of which can be extended backwards, leaving a small gap (4) to rotating blades.
  • a typical row of stationary (2) / rotating (1) blades is shown in fig. -3. Air flow, passed through each nozzle (5), made up of two successive blades of the stationary row, is enhanced, before impacts to corresponding blade of the rotating row, transmitting momentum to the power shaft (6), causing it to rotate.
  • the number of stationary / rotating blades vary in accordance to rotor diameter.
  • Shaft rotation may be multiplied, via a mechanical train to the required level to match the generator input, housed either to the bottom of the system
  • Yaw control is accomplished either passively or with an active drive.
  • Such a wind turbine presents following advantages.
  • An order of magnitude higher performance coefficient compared to single row of blades conventional wind-turbines, offering therefore same output, with much smaller swept area. Operates in a wider range of wind-speed, requiring lower cut-in wind speed
  • FIG-4 the innovative rotor, powers the generator under an approximate angle of 90°.
  • Figure-5 the generator is fed at an extension of the horizontal power shaft.
  • Figure-1 is a front view of the innovative rotor whose sections AA and BB are given in figures 2 and 3 respectively.

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

Eolienne à axe horizontal caractérisée par l'utilisation d'un rotor innovant (7) qui permet d'atteindre un rapport puissance sur volume plus élevée que celui des éoliennes classiques à axe horizontal à une seule rangée de pales. Le rotor innovant est constitué de deux rangées de pales, une première rangée immobile (1) et une seconde rangée tournante (2). La superposition de pales de la première rangée génère une série de buses (5) de sections transversales appropriées qui accélèrent l'écoulement d'air, lequel heurte les pales de la seconde rangée à un angle optimal amenant l'arbre de commande (6) à tourner. En outre, l'énergie ainsi produite est transférée de façon classique au générateur par le biais d'une boîte de vitesse.
PCT/GR2008/000020 2007-03-30 2008-03-27 Eolienne à axe horizontal innovante présentant un rendement élevé WO2008120026A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08719104A EP2137405A2 (fr) 2007-03-30 2008-03-27 Eolienne à axe horizontal innovante présentant un rendement élevé

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GR20070100193A GR1005872B (el) 2007-03-30 2007-03-30 Ανεμογεννητρια οριζοντιου αξονος με στροφειο δυο σειρων πτερυγιων, (σταθερης και κινητης).
GR20070100193 2007-03-30

Publications (3)

Publication Number Publication Date
WO2008120026A2 true WO2008120026A2 (fr) 2008-10-09
WO2008120026A3 WO2008120026A3 (fr) 2009-05-14
WO2008120026A4 WO2008120026A4 (fr) 2009-06-25

Family

ID=39477529

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GR2008/000020 WO2008120026A2 (fr) 2007-03-30 2008-03-27 Eolienne à axe horizontal innovante présentant un rendement élevé

Country Status (3)

Country Link
EP (1) EP2137405A2 (fr)
GR (1) GR1005872B (fr)
WO (1) WO2008120026A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2180181A1 (fr) * 2008-10-23 2010-04-28 Jia-Yuan Lee Structure de rotor d'une éolienne
GB2466209A (en) * 2008-12-11 2010-06-16 Vestas Wind Sys As Wind turbine wake expansion device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2317522A1 (fr) * 1975-07-10 1977-02-04 Eckel Oliver Turbines eoliennes
US4075500A (en) * 1975-08-13 1978-02-21 Grumman Aerospace Corporation Variable stator, diffuser augmented wind turbine electrical generation system
WO1984002750A1 (fr) * 1982-12-30 1984-07-19 Vindkraft Goeteborg Kb Dispositif pour turbines eoliennes
US6887031B1 (en) * 2004-03-16 2005-05-03 Angus J. Tocher Habitat friendly, pressure conversion, wind energy extraction
WO2005111413A1 (fr) * 2004-05-19 2005-11-24 Envision Corportion Projection pour rotor d'eolienne
US20060002786A1 (en) * 2004-07-01 2006-01-05 Richter Donald L Laminar air turbine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2317522A1 (fr) * 1975-07-10 1977-02-04 Eckel Oliver Turbines eoliennes
US4075500A (en) * 1975-08-13 1978-02-21 Grumman Aerospace Corporation Variable stator, diffuser augmented wind turbine electrical generation system
WO1984002750A1 (fr) * 1982-12-30 1984-07-19 Vindkraft Goeteborg Kb Dispositif pour turbines eoliennes
US6887031B1 (en) * 2004-03-16 2005-05-03 Angus J. Tocher Habitat friendly, pressure conversion, wind energy extraction
WO2005111413A1 (fr) * 2004-05-19 2005-11-24 Envision Corportion Projection pour rotor d'eolienne
US20060002786A1 (en) * 2004-07-01 2006-01-05 Richter Donald L Laminar air turbine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2180181A1 (fr) * 2008-10-23 2010-04-28 Jia-Yuan Lee Structure de rotor d'une éolienne
GB2466209A (en) * 2008-12-11 2010-06-16 Vestas Wind Sys As Wind turbine wake expansion device

Also Published As

Publication number Publication date
WO2008120026A4 (fr) 2009-06-25
WO2008120026A3 (fr) 2009-05-14
GR1005872B (el) 2008-04-15
EP2137405A2 (fr) 2009-12-30

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