DE19919133A1 - Wind energy utilization system, particularly suitable for installation within a domestic roof has a wind mill or turbine mounted in a wind tunnel which passes through a roof space - Google Patents

Wind energy utilization system, particularly suitable for installation within a domestic roof has a wind mill or turbine mounted in a wind tunnel which passes through a roof space

Info

Publication number
DE19919133A1
DE19919133A1 DE19919133A DE19919133A DE19919133A1 DE 19919133 A1 DE19919133 A1 DE 19919133A1 DE 19919133 A DE19919133 A DE 19919133A DE 19919133 A DE19919133 A DE 19919133A DE 19919133 A1 DE19919133 A1 DE 19919133A1
Authority
DE
Germany
Prior art keywords
wind
roof
tunnel
wind tunnel
energy utilization
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
DE19919133A
Other languages
German (de)
Inventor
Walter Thurner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19919133A priority Critical patent/DE19919133A1/en
Publication of DE19919133A1 publication Critical patent/DE19919133A1/en
Withdrawn legal-status Critical Current

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 
    • F03D3/04—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels
    • F03D3/0436—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels for shielding one side of 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
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/04—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels
    • F03D3/0436—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels for shielding one side of the rotor
    • F03D3/0445—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels for shielding one side of the rotor the shield being fixed with respect to the wind motor
    • F03D3/0454—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels for shielding one side of the rotor the shield being fixed with respect to the wind motor and only with concentrating action, i.e. only increasing the airflow speed into the rotor, e.g. divergent outlets
    • 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
    • F03D9/30—Wind motors specially adapted for installation in particular locations
    • F03D9/34—Wind motors specially adapted for installation in particular locations on stationary objects or on stationary man-made structures
    • 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
    • F05B2240/221—Rotors for wind turbines with horizontal axis
    • F05B2240/2212—Rotors for wind turbines with horizontal axis perpendicular to wind direction
    • 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
    • F05B2240/911—Mounting on supporting structures or systems on a stationary structure already existing for a prior purpose
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/30—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
    • Y02E10/728—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)
  • 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

A wind energy utilization system, particularly suitable for installation in a house roof, has a wind mill or turbine (3) mounted in a wind tunnel (4) which passes through a roof space, connecting the windward and leeward faces of a roof (1). The turbine drives an electrical generator (5). The wind tunnel (4) may occupy part of the opening provided by a pair of opposing dormer windows.

Description

Technische BezeichnungTechnical name

Die Erfindung bezieht sich auf eine Windkraftanlage zur Energiegewinnung und Einbau in Hausdächern. Auf der windzugewandten Seite des Daches (1) entsteht bei Wind ein Überdruck und auf der windabgewendeten Seite des Daches (1) entsteht bei Wind ein Unterdruck. Verbindet man die beiden Dachseiten mit einem Windkanal (3), so findet in diesem Windkanal (3) ein Druckausgleich statt. Bei diesem Druckausgleich ist die Luftbewegung im Windkanal (3) schneller als der momentane Wind. Baut man in den Windkanal (3) ein Windrad (4) ein, so kann die erhöhte Luftbewegung im Windkanal (3) genutzt und zur Energiegewinnung herangezogen werden.The invention relates to a wind turbine for energy generation and installation in house roofs. On the windward side of the roof ( 1 ) there is an overpressure in the wind and on the windward side of the roof ( 1 ) an underpressure is created in the wind. If you connect the two roof sides with a wind tunnel ( 3 ), pressure equalization takes place in this wind tunnel ( 3 ). With this pressure equalization, the air movement in the wind tunnel ( 3 ) is faster than the current wind. If a wind turbine ( 4 ) is installed in the wind tunnel ( 3 ), the increased air movement in the wind tunnel ( 3 ) can be used and used to generate energy.

Stand der TechnikState of the art

Mit den vorhandenen Entwicklungen ist die Montage von Windkraftanlagen wegen zu hoher Investitionen, Geräuschbelästigung und Geländeverunstaltung nur erschwerend möglich.With the existing developments, the assembly of wind turbines is due too high investments, noise pollution and blemishes only aggravating possible.

Diese Entwicklung begünstigt die erwähnten Merkmale durch die Ausnutzung der Dachwindenergie. Die Windkraftanlage wird vorzugsweise in das vorhandene Dach integriert und ist wegen der günstigen Investition in kürzester Zeit amortisiert.This development favors the features mentioned by exploiting the Roof wind energy. The wind turbine is preferably in the existing roof integrated and amortized in no time because of the cheap investment.

Erreichte VorteileAchieved advantages

Die im Schutzanspruch angegebene Erfindung liegt dem Problem zugrunde, eine Energiegewinnung zu schaffen, die die Windenergie ausnutzt, ohne die Landschaft zu verunstalten.The invention specified in the protection claim addresses the problem, one To create energy that takes advantage of wind energy without the landscape to deface.

Eine Lösung wird dadurch erreicht, daß eine Dachwindanlage, die vorzugsweise entlang und unterhalb des Dachfirstes montiert wird, mit dem Wind eine nahezu durchgehende Energiegewinnung bereitstellt. Diese gewonnene Energie kann im Winter neben der herkömmlichen Heizung als Zusatzheizung eingesetzt werden. Im Sommer und in den Übergangszeiten ist ausreichend Energie für die Warmwasseraufbereitung und Raumheizung vorhanden. Die Windkraftanlage ist von Handwerkern leicht beherrschbar und ist in kurzer Zeit eingebaut. Der nachträgliche Einbau der Dachwindkraftanlage ist in jedem Neigungsdach möglich. Es begünstigt die dezentrale Energieversorgung und kann bei entsprechendem Umrichter die Überschußenergie in das Versorgungsnetz einspeisen. Wenn die gesamte vorhandene Dachlänge mit Windkanälen bestückt wird, so ergibt sich im Vergleich zur Wohnanlage eine verhältnismäßig sehr hohe Energiegewinnung durch Wind. A solution is achieved in that a roof wind turbine, which is preferred along and below the roof ridge, with the wind almost provides continuous energy generation. This gained energy can in Winter can be used as an additional heater in addition to conventional heating. in the Summer and in the transitional seasons is enough energy for that Hot water preparation and space heating available. The wind turbine is easy to master by craftsmen and can be installed in a short time. The Subsequent installation of the roof wind turbine is possible in any pitched roof. It favors the decentralized energy supply and can with appropriate Inverters feed the excess energy into the supply network. If the the entire existing roof length is equipped with wind tunnels, this results in Compared to the residential complex by a relatively very high energy production Wind.  

AusführungsbeispielEmbodiment

Ein Ausführungsbeispiel der Erfindung wird anhand der Fig. 1 beschrieben.An embodiment of the invention is described with reference to FIG. 1.

Fig. 1 zeigt den Seitenschnitt des Daches, des Windkanals und des Windrades. 1 Dach bzw. Neigungsdach
2 Gaube
3 Windkanal
4 Windrad, Schraube, Ventilator usw.
5 Stromgenerator
 Fig. 1 shows the side section of the roof, the wind tunnel and the wind turbine. 1 roof or pitched roof
2 dormer
3 wind tunnel
4 wind turbine, screw, fan etc.
5 power generator

Durch die Dachoberfläche (1) wird der Wind auf der gesamten Dachfläche (1) gesammelt und durch den Gegendruck des Daches (1) verdichtet. Dabei erhöht sich die Dichte der Luftmasse. Der Wind strömt der Dachneigung entsprechend zum Dachfirst. Von der Gaube (2) und vom Unterdruck der windabgewendeten Dachseite (1) wird die Windströmung in den Windkanal (4) umgelenkt. Im Windkanal (4) wird ein Windrad (3) von der Luftströmung angetrieben und als mechanische Energie genutzt. Durch den Unterdruck, der sich auf der windabgewendeten Seite des Daches (1) aufbaut, der dichteren Luftmasse und der Luftstömung des Windes, erhöht sich die Energieausnutzung im Windkanal (3) im Vergleich zum momentanen Wind.Through the roof surface (1) of the wind is collected on the entire roof surface (1) and compressed by the back pressure of the roof (1). The density of the air mass increases. The wind flows according to the roof pitch to the ridge. The wind flow is deflected into the wind tunnel ( 4 ) by the dormer ( 2 ) and by the negative pressure on the windward side of the roof ( 1 ). In the wind tunnel ( 4 ), a wind wheel ( 3 ) is driven by the air flow and used as mechanical energy. Due to the negative pressure that builds up on the side of the roof ( 1 ) facing away from the wind, the denser air mass and the air flow of the wind, the energy utilization in the wind tunnel ( 3 ) increases in comparison to the current wind.

Claims (4)

1. Dachwindanlage zur Ausnutzung der Windenergie mit einem in einen Windkanal (4) eingebauten Windrad (3), dadurch gekennzeichnet, daß der Windkanal (3) die beiden Dachseiten (1) eines Neigungsdaches verbindet und so bei Wind durch die dichtere Luftströmung und den Druckunterschied der beiden Dachseiten (1) die Energieausnutzung des Windes im Windkanal (4) erhöht.1. Roof wind system for utilizing wind energy with a wind wheel ( 3 ) built into a wind tunnel ( 4 ), characterized in that the wind tunnel ( 3 ) connects the two roof sides ( 1 ) of an inclined roof and thus in the event of wind due to the denser air flow and the pressure difference of the two roof sides ( 1 ) increases the energy utilization of the wind in the wind tunnel ( 4 ). 2. Windkraftanlage nach Anspruch 1, dadurch gekennzeichnet, daß in den Windkanal (4) jede Art von Windrädern (3) bzw. Ventilatoren eingebaut werden können.2. Wind power plant according to claim 1, characterized in that in the wind tunnel ( 4 ) any type of wind turbines ( 3 ) or fans can be installed. 3. Windkraftanlage nach einem der Ansprüche, dadurch gekennzeichnet, daß die dem Wind zugewandte Dachseite (1) einen höheren Druck und der dem Wind abgewendeten Dachseite (1) entstehende Unterdruck von der Windkraftanlage der Druckausgleich genutzt wird.3. Wind power plant according to one of the claims, characterized in that the roof side facing the wind ( 1 ) a higher pressure and the roof side facing away from the wind ( 1 ) resulting negative pressure is used by the wind power plant pressure compensation. 4. Windkraftanlage nach einem der Ansprüche, dadurch gekennzeichnet, daß der durch das Dach komprimierte Wind der Dachneigung entsprechend zur Gaube (2) geführt wird, und von der Gaube (2) der Luftstrom in den Windkanal (4) umgelenkt wird.4. Wind power plant according to one of the claims, characterized in that the wind compressed by the roof of the roof pitch is guided accordingly to the dormer ( 2 ), and from the dormer ( 2 ) the air flow is deflected into the wind tunnel ( 4 ).
DE19919133A 1999-04-27 1999-04-27 Wind energy utilization system, particularly suitable for installation within a domestic roof has a wind mill or turbine mounted in a wind tunnel which passes through a roof space Withdrawn DE19919133A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19919133A DE19919133A1 (en) 1999-04-27 1999-04-27 Wind energy utilization system, particularly suitable for installation within a domestic roof has a wind mill or turbine mounted in a wind tunnel which passes through a roof space

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19919133A DE19919133A1 (en) 1999-04-27 1999-04-27 Wind energy utilization system, particularly suitable for installation within a domestic roof has a wind mill or turbine mounted in a wind tunnel which passes through a roof space

Publications (1)

Publication Number Publication Date
DE19919133A1 true DE19919133A1 (en) 2000-11-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19919133A Withdrawn DE19919133A1 (en) 1999-04-27 1999-04-27 Wind energy utilization system, particularly suitable for installation within a domestic roof has a wind mill or turbine mounted in a wind tunnel which passes through a roof space

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10057987A1 (en) * 2000-11-23 2002-06-06 Josef Zeitler Distributed wind energy and ventilation plant for integration into building, exploits wind-induced under- and over-pressures in and around it, using interconnecting ductwork
DE10103999A1 (en) * 2001-01-31 2002-08-01 Werner Van Gelder Wind power generator of vertical or horizontal construction is mounted in or on roofs of domestic or other buildings
DE20204945U1 (en) * 2002-03-27 2003-07-31 Stanger, Reinhard, 32339 Espelkamp Wind power facility for integrating into a building's pitched roof ridge has an air channel fitted in a building and a wind turbine exposed to an air flow
WO2003067081A1 (en) * 2002-02-02 2003-08-14 David Hyman Gordon Roof mounted wind turbine
WO2008009920A2 (en) * 2006-07-17 2008-01-24 Stephen Foster Wind turbines
GB2450917A (en) * 2007-07-13 2009-01-14 Paul William Richards Wind turbine mounted within a pitched roof
EP2128439A1 (en) 2008-05-27 2009-12-02 Syneola SA An intelligent decentralized electrical power generation system
DE202010002326U1 (en) 2010-02-12 2010-08-19 Dammann, Wolfram Roof system for buildings
CN102155235A (en) * 2011-04-08 2011-08-17 王佰琐 Method for constructing large through tower in mountain rock mass and section superposing method thereof
DE102010008022A1 (en) 2010-02-12 2011-08-18 Dammann, Wolfram, 04416 Roof system for buildings, has slanted roof surfaces which are arranged in height offset manner to each other at different inclination angles to horizontal plane and with their upward outgoing ends
US8257018B2 (en) 2010-01-14 2012-09-04 Coffey Daniel P Wind energy conversion devices
DE102013110209A1 (en) 2013-09-17 2015-03-19 Andjey Hartl Wind turbine and method for installing a wind turbine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3124892A1 (en) * 1981-06-25 1983-01-13 Gernot 5165 Hürtgenwald Gabriel Device for obtaining energy from moving air
DE2847672C2 (en) * 1978-10-31 1983-09-01 Johannes 1000 Berlin Keller Rotor for converting wind power into electrical and mechanical energy
DE19506946C1 (en) * 1995-02-28 1996-05-15 Heubuch Josef Combined wind-power generator and ventilator unit e.g. for building
DE19506001A1 (en) * 1995-02-21 1996-08-22 Herbert Fehrensen Electric power generator using natural wind power and thermals under house roof
DE19644890A1 (en) * 1996-10-29 1998-04-30 Ralf Huber Roof-mounted wind-energy conversion system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2847672C2 (en) * 1978-10-31 1983-09-01 Johannes 1000 Berlin Keller Rotor for converting wind power into electrical and mechanical energy
DE3124892A1 (en) * 1981-06-25 1983-01-13 Gernot 5165 Hürtgenwald Gabriel Device for obtaining energy from moving air
DE19506001A1 (en) * 1995-02-21 1996-08-22 Herbert Fehrensen Electric power generator using natural wind power and thermals under house roof
DE19506946C1 (en) * 1995-02-28 1996-05-15 Heubuch Josef Combined wind-power generator and ventilator unit e.g. for building
DE19644890A1 (en) * 1996-10-29 1998-04-30 Ralf Huber Roof-mounted wind-energy conversion system

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10057987A1 (en) * 2000-11-23 2002-06-06 Josef Zeitler Distributed wind energy and ventilation plant for integration into building, exploits wind-induced under- and over-pressures in and around it, using interconnecting ductwork
DE10103999A1 (en) * 2001-01-31 2002-08-01 Werner Van Gelder Wind power generator of vertical or horizontal construction is mounted in or on roofs of domestic or other buildings
WO2003067081A1 (en) * 2002-02-02 2003-08-14 David Hyman Gordon Roof mounted wind turbine
US7518255B2 (en) 2002-02-02 2009-04-14 Windsave Holdings Plc Roof mounted wind turbine
DE20204945U1 (en) * 2002-03-27 2003-07-31 Stanger, Reinhard, 32339 Espelkamp Wind power facility for integrating into a building's pitched roof ridge has an air channel fitted in a building and a wind turbine exposed to an air flow
WO2008009920A2 (en) * 2006-07-17 2008-01-24 Stephen Foster Wind turbines
WO2008009920A3 (en) * 2006-07-17 2008-04-10 Stephen Foster Wind turbines
GB2450917A (en) * 2007-07-13 2009-01-14 Paul William Richards Wind turbine mounted within a pitched roof
EP2128439A1 (en) 2008-05-27 2009-12-02 Syneola SA An intelligent decentralized electrical power generation system
US8257018B2 (en) 2010-01-14 2012-09-04 Coffey Daniel P Wind energy conversion devices
US10253755B2 (en) 2010-01-14 2019-04-09 Daniel P. Coffey Wind energy conversion devices
DE202010002326U1 (en) 2010-02-12 2010-08-19 Dammann, Wolfram Roof system for buildings
DE102010008022A1 (en) 2010-02-12 2011-08-18 Dammann, Wolfram, 04416 Roof system for buildings, has slanted roof surfaces which are arranged in height offset manner to each other at different inclination angles to horizontal plane and with their upward outgoing ends
CN102155235A (en) * 2011-04-08 2011-08-17 王佰琐 Method for constructing large through tower in mountain rock mass and section superposing method thereof
CN102155235B (en) * 2011-04-08 2013-08-21 王佰琐 Method for constructing large through tower in mountain rock mass and section superposing method thereof
DE102013110209A1 (en) 2013-09-17 2015-03-19 Andjey Hartl Wind turbine and method for installing a wind turbine

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