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WO2008131726A2 - Éolienne et procédé d'utilisation de celle-ci - Google Patents

Éolienne et procédé d'utilisation de celle-ci Download PDF

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Publication number
WO2008131726A2
WO2008131726A2 PCT/DE2008/000674 DE2008000674W WO2008131726A2 WO 2008131726 A2 WO2008131726 A2 WO 2008131726A2 DE 2008000674 W DE2008000674 W DE 2008000674W WO 2008131726 A2 WO2008131726 A2 WO 2008131726A2
Authority
WO
WIPO (PCT)
Prior art keywords
housing
rotor
wind
rotors
wind turbine
Prior art date
Application number
PCT/DE2008/000674
Other languages
German (de)
English (en)
Other versions
WO2008131726A3 (fr
Inventor
Christian Esterhammer
Original Assignee
Christian Esterhammer
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 Christian Esterhammer filed Critical Christian Esterhammer
Publication of WO2008131726A2 publication Critical patent/WO2008131726A2/fr
Publication of WO2008131726A3 publication Critical patent/WO2008131726A3/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 
    • F03D3/02—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having a plurality of rotors
    • 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
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/007—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with means for converting solar radiation into useful energy
    • 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
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • 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
    • F05B2240/213—Rotors for wind turbines with vertical axis of the Savonius 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
    • F05B2240/40—Use of a multiplicity of similar components
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/138—Water desalination using renewable energy
    • Y02A20/141—Wind power
    • 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 wind turbine with at least one rotor, which is operatively connected to at least one generator for generating electrical energy.
  • the invention further relates to a method of using such a wind turbine.
  • Wind turbines have long been known in a variety of embodiments. Rotors in the form of so-called “buoyancy runners” are currently used in practice in the use of wind energy and conversion of the same into electrical energy.The rotors of said "buoyancy runners” cover up to 400 m 2 area and only reap a percentage of less than 10%. the same sweeping wind. This results in considerable constructive and technological expenses for the realization of the same, in order to even achieve a certain economically advantageous effect with such systems can. This circumstance also explains the known period of time required for their arm sorting, possibly supported by various subsidy measures. In existing wind turbines of the aforementioned type service life and arm amortization period are almost almost identical, with the residual risk that this may also be greater than the useful life, for example due to low windfall than originally forecast.
  • BESTATIGUNGSKOPIE To address this problem, a variety of measures are proposed, in particular a changed number of rotor blades or wings, a special arrangement and training the same or the wind concentrating baffles and housing, which in turn cause a forced flow through the rotor.
  • DE 101 05 424 A1 discloses a wind turbine for generating electrical energy with two frontal flowed vertical rotors are known, which in turn, between them forming a gap, are arranged spaced from each other, wherein a third vertical rotor is provided, which penetrates from the penetrating through the gap Air flow and partly the exhaust air of a frontally mounted vertical rotor is driven.
  • This third vertical rotor is arranged eccentrically to the axis of symmetry of the frontally arranged vertical rotors.
  • DE 10 2004 060 230 A1 discloses a wind power plant with two rotors, which are coupled to one another in the horizontal plane and rotate in the opposite direction, with a vertical axis of rotation, wherein both rotors are arranged in a housing enclosing the same.
  • the housing initially has a front wall which shields the rotor blades, which are currently moving against the wind direction.
  • the housing has both front and rear openings, which allow the flow of air through the housing and the action of the air flow on the currently located in the same rotor blades. It is further proposed that the cross-sectional area of the rear openings be smaller than the cross-sectional area of the front openings of the housing.
  • the stated object is achieved in that the at least one rotor is formed by a "resistor rotor" with two or more rotor blades, which within such Housing is arranged that projecting wind blades thereof projecting from the outer contour of the housing in the wind direction, wherein said housing has a flow-favorable profile, which allows the most extensive avoidance of turbulence predominantly laminar flows on the swept by the air flow surface thereof.
  • said "resistance runner” is designed as a per se known “Savonius" rotor with a vertically arranged axis of rotation.
  • housing stroking air flow may be formed by a profile based on a fish profile.
  • the fish profile is formed as "fat" as possible, whereby the flow velocity of the same flowing around air flows can be maximized.
  • a length "L" is selected for the housing with fish profile, which, depending on the dimensions of the at least one rotor about 2.0 times to about 3.5 times, preferably about 2.8 times the Width "B" of the fish profile in the arrangement region of the at least one rotor corresponds.
  • the at least one rotor is advantageously arranged in or immediately before and / or behind the region of the largest cross section of the profile of the housing, whereby the high flow velocities generated can act particularly effectively on the rotor.
  • the spacing of the rotors may be selected such that the surfaces of the rotors spanned by the rotor blades of the rotors are arranged side by side.
  • the spacing of the rotors can, however, also be selected such that the surfaces covered by the rotor blades thereof engage with one another while avoiding touching the rotor blades of the adjacent rotors, thereby saving space for the rotors within the housing without adversely affecting the achievable efficiency.
  • the wind attack surfaces of the rotor blades of the rotors may be at least partially formed by pivotable lamellar elements in turn to reduce the flow resistance during the passage of the interior of the housing, the formation of window-like openings in the rotor blades and the other during the passage of the wind attack area allow outside of the housing to close said window-like openings.
  • the lamellar elements can be designed to open and close automatically due to the forces acting on the lamellar elements during operation of the rotors.
  • the surfaces of the rotor blades of the rotors and / or the outwardly facing surface of the housing may be equipped with photovoltaic elements for converting solar energy into electrical energy, whereby the energy production balance of the wind turbine in question can be further improved ,
  • a generator in particular a permanent magnet synchronous generator, preferably an axial field synchronous generator has been proven.
  • the method of using the above wind turbine is characterized in that one or more of them are used to generate and directly feed electrical energy into existing electrical grids or as an isolated solution for individual users of electrical energy.
  • one or more wind turbines of the type described can be used to power water desalination plants, air conditioners, plants for the production and storage of hydrogen and / or other consumers with electrical energy.
  • the proposed wind power plant of the generic type has several advantages in terms of conventional.
  • the airflow passing over the surface of the housing is more efficient
  • a kinetic energy is known to be a function of the cube of the wind speed, an energy harvest of 60% of the available energy is feasible, and a simple and inexpensive construction of the housing is achieved by an advantageous combination of the specially designed housing Rotors, specially trained generators and other electrical energy-generating measures, in this case photovoltaic elements, the power generation balance of the speech in ste
  • wind power plants would be particularly advantageous in comparison with conventional ones, which would then be suitable in particular for island solutions in economically or energetically undeveloped or underdeveloped areas, ie in areas or countries with a lack of infrastructure for energy transport.
  • a modular design of the wind turbine offers itself, so that it can be equipped by a basic structure according to the needs accordingly.
  • Offshore plants could be realized in the megawatt range with possibly a simple relocation to, for example, hydrogen production by electrolysis of water; - allows maximum wind and photovoltaic areas in the smallest space;
  • FIG. 3 shows the wind turbine according to FIGS. 1 and 2 in a horizontal section
  • FIG. 5 shows the representation of the rotor of FIG. 4 in a horizontal section
  • Fig. 7 shows a third advantageous embodiment of the wind turbine.
  • FIGS. 1 to 3 very schematically show a wind turbine 1 for generating electrical energy with at least one rotor 2, 3, preferably two rotors 2, 3, which in turn are operatively connected to at least one generator 4.
  • the at least one, respectively the present two rotors 2, 3 are each formed by a known so-called “resistance rotor” with vertically arranged axis of rotation and two or more schaufeiförmigen rotor blades 5, which is referred to in the art as "Savonius" rotor.
  • the two rotors 2, 3 thus arranged transversely to the longitudinal axis 9 of the housing 6 and spaced from each other and axially parallel side by side and rotate accordingly in opposite directions.
  • FIGS. 1 to 3 further show, the rotors 2, 3 are operatively connected via a gear transmission 10 to the generator 4 presently arranged within the housing 6 of the wind turbine 1 in the front region thereof.
  • the rotors 2, 3 at least one spur gear 11, which is connected via a 6 supported on the housing pinion gear 12 with a spur gear 13 of the generator 4 in meshing engagement.
  • the rotors 2, 3 on the front side both an upper and a lower spur gear 11, which are operatively connected via a respective scribe 12 with an upper or lower spur gear 13 of the generator 4, whereby an increased rigidity of the gear transmission 10 and accordingly an improved Power transmission are guaranteed.
  • the invention is not limited to the above embodiment but includes any gear arrangement for transmitting power from the rotors 2, 3 to the at least one generator 4.
  • the invention is not limited to a single generator 4, but may also comprise two or more generators 4, wherein the generator or generators 4 may be arranged both in the housing 6 and outside thereof.
  • Such generators 4 are u.a. characterized by the following advantages:
  • a profile has proven to be flow-favorable profile for said housing 6, which is ajar to a fish profile with a largely rounded in cross-section blunt head portion, which in turn terminates in a stretched and narrowing tail area.
  • This profile should be as "fat” as possible in order to achieve the greatest possible flow velocities of the air currents sweeping over the surface of the same.
  • the increase in the velocity of the incoming wind 7 allows a disproportionately increased harvest of electrical energy Speed down, so that when doubling the speed of an eight times higher amount of energy can be harvested than conventional.
  • the rotors 2, 3 are thus preferably arranged in or immediately before and / or behind the region of the largest cross section of the profile of the housing 6.
  • a “fat” fish profile for the housing 6 is understood in particular to mean a fish profile whose length "L” depends on the current dimensions of the at least one or both rotors 2, 3, approximately 2.0 times to approximately 3, 5 times, preferably about 2.8 times the width "B" of the fish profile in the arrangement region of the at least one, in the present case the two rotors 2, 3 corresponds.
  • the spacing of the rotors 2, 3 is selected transversely to the longitudinal axis 9 of the housing 6 such that the surfaces of rotation spanned by the rotor blades 5 of the rotors 2, 3 are arranged side by side.
  • FIGS. 1 to 3 show a further developed rotor 2, 3 in a perspective detail view.
  • This rotor 2, 3 differs from the rotors 2, 3 shown in FIGS. 1 to 3 essentially in that the wind engaging surfaces 14 of the rotor blades 5 thereof are formed at least in regions by lamellar or flap elements 15 pivotable about a vertical axis to minimize the resistance of the rotor blades 5 in the phase of mating.
  • lamellar elements 15 The operation of such lamellar elements 15 is very good from Fig. 5 can be seen.
  • the rotor 2, 3 in the present case rotates counterclockwise.
  • the lamellar elements 15 now advantageously allow a reduction in the flow resistance during the passage of the rotor blades 5 through the interior of the housing 6, by at this time "tV window-like openings 16 are formed or released in the respective rotor blades 5. Reaching then, d. h., At a time when M 'rotor blades 5 again the wind attack area outside the housing 6, the window-like openings 16 are closed or wear out.
  • the resistance coefficients of conventional "Savonius" rotors are approximately 2.3 in the flow direction and 1.2 against the flow direction, whereas the lamellar elements 15 allow a reduction of the drag coefficient against the flow direction to approximately 0.5 additionally increased by 60%.
  • the arrangement on the rotor blades 5 and accordingly the air cooling generated by the rotational movement of the same ensure the optimum operating temperature of said photovoltaic elements.
  • the embodiment according to FIG. 6 differs from the previously described essentially in that the housing 6 is supported by a separate upright element 17 in which, for example, the generator or generators 4 can be arranged.
  • FIG. 7 further shows a housing 6 with an even further optimized outer contour by u. a. the rotors 2, 3 were covered in their upper area by a streamlined hood 18.
  • housings 6 are concerned, they can be made of a wide variety of materials and according to a variety of manufacturing processes.
  • the housing 6 is formed according to FIGS. 1, 2 and 6 substantially by a cup-shaped or cup-shaped lower housing base body 6a, which in turn, after all units have been installed in the same, is closed by a cover member 6b upwards.
  • One or more of the wind turbines 1 according to the invention can be advantageous for generating and direct feeding electrical energy into existing networks or as isolated solutions for individual customers of electrical energy, for example for the supply of water desalination plants, air conditioners, plants for the production and storage of hydrogen and / or a Use a variety of other consumers.
  • the investment costs amount to approximately EUR 20,000.

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)
  • Power Engineering (AREA)
  • Wind Motors (AREA)

Abstract

L'objectif de l'invention est de créer une éolienne (1), pourvue d'au moins un rotor (2, 3), qui soit simple et de mise en oeuvre économique et qui soit perfectionnée en vue du rendement à réaliser. Cet objectif est atteint grâce à une éolienne (1) pourvue d'au moins un rotor (2, 3) qui coopère avec au moins un générateur (4) pour produire de l'énergie électrique, ce ou ces rotors (2, 3) étant constitués d'un 'rotor à résistance élevée' qui comprend au moins deux pales de rotor (5) et qui est disposé à l'intérieur d'un carter (6) de telle sorte que les pales de rotor (5) se déplaçant dans le sens du vent fassent saillie par rapport au contour extérieur du carter (6), ledit carter (6) présentant un profil favorable à l'écoulement permettant d'obtenir des écoulements principalement laminaires sur la surface balayée par l'écoulement de l'air tout en empêchant sensiblement les turbulences.
PCT/DE2008/000674 2007-04-26 2008-04-22 Éolienne et procédé d'utilisation de celle-ci WO2008131726A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007020081A DE102007020081A1 (de) 2007-04-26 2007-04-26 Windkraftanlage und Verfahren zur Verwendung derselben
DE102007020081.3 2007-04-26

Publications (2)

Publication Number Publication Date
WO2008131726A2 true WO2008131726A2 (fr) 2008-11-06
WO2008131726A3 WO2008131726A3 (fr) 2009-06-25

Family

ID=39777524

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2008/000674 WO2008131726A2 (fr) 2007-04-26 2008-04-22 Éolienne et procédé d'utilisation de celle-ci

Country Status (2)

Country Link
DE (1) DE102007020081A1 (fr)
WO (1) WO2008131726A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITNA20100022A1 (it) * 2010-05-10 2011-11-11 Westend Srl Colonne eoliche per la produzione di energia elettrica
ES2405836B1 (es) * 2011-11-17 2014-05-23 Eduardo Luis GARCIA GARCIA Generador eólico de eje vertical mejorado, sobre perfil aerodinamico de eje libre.
DE102014001891A1 (de) 2014-02-14 2015-08-20 Christian Esterhammer Wind- oder Wasserkraftanlage sowie Rotor dazu
DE102023120931A1 (de) 2023-08-07 2025-02-13 Jakob Schumacher Wind- oder Wasserkraftanlage mit zwei ineinandergreifenden, gegenläufigen Rotoren

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB158974A (en) * 1919-11-12 1921-02-14 Henry Gardiner Lloyd Improvements in or relating to fluid-current motors
DE1105424B (de) * 1957-11-13 1961-04-27 Hoechst Ag Verfahren zur Herstellung von reaktionsfaehigen Erythrinanen
FR2504604A1 (fr) * 1981-04-23 1982-10-29 Berger Michel Aerogenerateur a axe vertical doubles rotors et a flux canalise
DE3403657A1 (de) * 1984-01-31 1985-08-01 Heinz Dipl.-Ing. 1000 Berlin Päselt Vorrichtung zur umwandlung von stroemungsenergie in mechanische energie
DE29923699U1 (de) * 1999-11-11 2001-03-15 Ellerbeck, Gerhard, 49201 Dissen Windrad
DE10105424B4 (de) 2001-01-31 2005-03-10 Adolf Sulz Windkraftanlage mit frontal angeströmten Vertikalrotoren
WO2002097264A1 (fr) * 2001-05-29 2002-12-05 David Peter Miles Ameliorations portant sur des dispositifs et des turbines a fluides
DE202004018879U1 (de) * 2004-12-07 2005-02-03 Beckers, Klaus Wind- und Wasserkraftanlage mit Vertikalrotoren
DE102004060230A1 (de) 2004-12-15 2006-06-29 Piotr Kliminski Windkraftanlage mit zwei in der Horizontalebene miteinander gekoppelten in Gegenrichtung drehenden Rotoren mit vertikalen Drehachsen
DE202005013658U1 (de) 2005-08-29 2006-07-13 Peter, Uwe Windkraftanlage
DE202008007687U1 (de) * 2008-06-09 2008-08-28 Trampler, Wolfgang Windkraftmaschine mit mindestens zwei Vertikalrotoren und Windleiteinrichtungen

Also Published As

Publication number Publication date
DE102007020081A1 (de) 2008-10-30
WO2008131726A3 (fr) 2009-06-25

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