WO2010096010A1 - Power plant - Google Patents

Power plant Download PDF

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Publication number
WO2010096010A1
WO2010096010A1 PCT/SE2010/050190 SE2010050190W WO2010096010A1 WO 2010096010 A1 WO2010096010 A1 WO 2010096010A1 SE 2010050190 W SE2010050190 W SE 2010050190W WO 2010096010 A1 WO2010096010 A1 WO 2010096010A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
wind
medium
catching members
catching
Prior art date
Application number
PCT/SE2010/050190
Other languages
French (fr)
Inventor
Lennart Nilsson
Original Assignee
Lennart Nilsson
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 Lennart Nilsson filed Critical Lennart Nilsson
Publication of WO2010096010A1 publication Critical patent/WO2010096010A1/en

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 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • 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 
    • F03D1/06—Rotors
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • 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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/26—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy
    • F03B13/264—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy using the horizontal flow of water resulting from tide movement
    • 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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00—Other machines or engines
    • F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • F03B17/061—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially in flow direction
    • 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 
    • F03D1/06—Rotors
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • F03D1/0633—Rotors characterised by their aerodynamic shape of the blades
    • F03D1/0641—Rotors characterised by their aerodynamic shape of the blades of the section profile of the blades, i.e. aerofoil profile
    • 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
    • F03D13/10—Assembly of wind motors; Arrangements for erecting 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
    • 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
    • F03D13/22—Foundations specially adapted for 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
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/917—Mounting on supporting structures or systems on a stationary structure attached to cables
    • 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
    • F05B2240/917—Mounting on supporting structures or systems on a stationary structure attached to cables
    • F05B2240/9176—Wing, kites or buoyant bodies with a turbine attached without flying pattern
    • 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
    • F05B2240/95—Mounting on supporting structures or systems offshore
    • 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
    • F05B2240/97—Mounting on supporting structures or systems on a submerged structure
    • 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
    • F05B2250/70—Shape
    • F05B2250/71—Shape curved
    • F05B2250/712—Shape curved concave
    • 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
    • Y02E10/20—Hydro energy
    • 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
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
    • 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
    • Y02E10/727—Offshore wind turbines

Abstract

The present invention relates to a device for generating energy comprising a mainly horizontal shaft (10), connection means between the shaft and en electric generator; support structure attached to the shaft, medium catching members (18) arranged to said structure and capable of catching a media current (20) in order to obtain a rotation of said shaft- The invention is characterised in that said wind catching members (18) are arranged with a concave surface directed against the medium direction, which surface concentrates the medium force in order to obtain a rotation of the shaft and thereby generation of electricity.

Description

POWER PLANT
TECHNICAL AREA
The present invention relates to a power plant and in particular a power plant capable of utilizing kinetic energy in air.
BACKGROUND OF INVENTION
Renewable energy sources have received a larger and larger focus during the latest 40 years because mankind cannot for ever consume ending energy sources such as oil, gas and coal, and that these energy sources contribute to the environmental pollution and environmental effects of large dimensions.
Because of this new energy technologies have been developed and exploited, such as power plants that utilize wind force, wave force, tidal wave force and the like, i.e. the movement energy of air or water is utilized in order to create useful energy, in particular electricity.
Of the above mentioned energy technologies, the wind power has come the farthest where there during a number of years are several manufacturers of commercial wind power plants. The most common type of wind power plant is with large, often three blades, propellers that drive electric generators placed in a turret, which in turn is placed on a tower or pillar. A strive is thereby to develop large units that can produce relatively much energy. The criticism against this has been and still is, that these power plants spoil the landscape because they dominate the landscape view, and in particular if more are placed in the vicinity of each other, and that they tend to generate some noise during the rotation of propellers.
As alternative to the above mentioned wind power plants, new technologies have been developed where you try to improve the efficiency at the same time as the inconveniences are minimised. Such a technology is vertical turbines that are equipped with curved spiral blades. In this way a design is obtained that is not as visual as conventional propellers and almost soundless because the turbines rotate with the wind speed. So far the vertical turbines are relatively small and can only deliver electricity to smaller consumers that utilize low voltage systems.
It is however still the wind power plants with three rotor blades that is the dominating technology even if many are of the opinion that this technology not optimally utilizes the force that can be obtained from the wind.
By the above it is clear that there is room for developments of power plants that are capable of utilizing in the best way the wind energy as well as water energy.
BRIEF DESCRIPTION OF INVENTION
The aim of the present invention is to provide a development of power plants for renewable energy sources and in particular wind power.
This aim is obtained by an invention according to the features of the independent claim 1. Preferable embodiments of the invention form the subject of the dependent claims.
According to a main aspect of the invention it is characterised by a device for generating energy comprising a mainly horizontal shaft, connection means between the shaft and en electric generator; support structure attached to the shaft, wind catching members arranged to said structure and capable of catching a wind current in order to obtain a rotation of said shaft, characterised in that said wind catching members are arranged with a concave surface directed against the wind direction, which surface concentrates the wind force in order to obtain a rotation of the shaft and thereby generation of electricity.
According to another aspect of the invention it is characterised in that the wind catching members are positioned with an angle < 90 degrees in relation to the wind direction.
According to another aspect of the invention, it is characterised in that it comprises at least two support structures and wind catching members. According to a further aspect of the invention, it is characterised in that it is arranged turnable on a support structure,
Preferably the device comprises a plurality of wind catching members.
The advantages with the present invention are several. Due to that the wind catching members are designed with concave surfaces against the wind direction, i.e. the wind hits the concave surfaces, an improved force effect is obtained in relation it of the wind catching members would have been plane,
In order to obtain a good torque from the force effect of the wind on the wind catching members, these are angled with an angle less than 90 degrees in relation to the wind direction.
All in all a very good force transmission and a large torque is obtained by a wind that acts on a device according to the present invention, where the torque is considerably larger than a conventional three-blade rotor of corresponding size. The advantage with the present invention in comparison with conventional rotors is that the diameter can be made considerably smaller but yet with an improved effect.
These and other aspects of, and advantages with, the present invention will become apparent from the following detailed description of the invention and from the accompanying drawings.
BRIEF DESCRIPTION OF DRAWINGS
In the following detailed description of the invention, reference will be made to the accompanying drawings, of which
Fig. 1 schematically displays a side view of the principle of the present invention with wind as driving medium,
Fig. 2 schematically shows a front view o the principle of Fig. 1, Fig. 3 shows a detailed view of a wind catching member that is used in the present invention,
Fig. 4 schematically shows a side view of the principle of the present invention with water as driving medium, and,
FIg. 5 schematically shows a front view of the principle of Fig. 4.
DETAILED DESCRIPTION OF THE INVENTION In the figures the principle is schematically shown of the present invention. The device comprises a central shaft 10, mainly horizontally directed. To the shaft a generator 11 is connected for generation of electricity, which either may be direct or via suitable transmission.
To the shaft a hub 14 is rotatably arranged. To the hub a number of support structures in the form of arms 16 are attached, mainly perpendicular to the longitudinal axis of the shaft. On each arm a medium collecting member 18, in the form of a plate or wing, is attached, where the medium in Fig, 1 and 2 are wind currents. As seen from the figures, the wings are designed with a concave surface in the wind direction 20. Further each wing has an angle α in relation to the wind direction, Fig. 2.
The advantage with the concave design is that the wind is guided against the centre of the wing 18, which gives an increased force from the wind. Further, the angle of the wings gives a force component that drives the device to rotate, The size of the concavity and the angle in relation to the wind direction can of course be changed and adjusted for different conditions.
The shown embodiment is arranged wit four wings, but may of course be designed with another number depending on the area of utility and/or type of energy streaming medium. It is also to be understood that the device is placed on some sort of support structure 22, 24 such as a foundation, where this is turnable on order to be placed in the proper direction in relation to the wind direction. It is also to be understood that the device also comprises suitable control equipment and regulating means for controlling the output power from the device, including suitable braking devices.
The figures 3 and 4 show a variant where the principle of the present invention is placed in running water whereby the force media then is the water. The device is then anchored in pontoon 30 that is floating on the water. The generator 32, encapsulated in a suitable manner, is attached to the pontoon 30 via rods 34. According to the previous embodiment, the concave wings 36 are attached to the generator shaft, either direct or via a transmission, with the aid of the support structures 38. The device is held in place with a wire 40 that in turn is attached to a bottom anchoring 42« The wings 36 are preferably protected by a protection ring 44 so that not the wire or any other line may be entangled in the wings. As seen from Fig. 5, the pontoons 30 may be somewhat asymmetric in order to compensate for the torque from rotor and generator.
It is to be understood that the embodiment described above and shown In the drawings ϊs to be regarded only as a non-limiting example of the invention and that it may be modified in many ways within the scope of the patent claims.

Claims

PATENT CLAIMS
1 , A device for generating energy comprising a mainly horizontal shaft (10),
- connection means between the shaft and en electric generator;
- support structure attached to the shaft, - medium catching members (18) arranged to said structure and capable of catching a media current (20) In order to obtain a rotation of said shaft, characterised in that said wind catching members (18) are arranged with a concave surface directed against the medium direction, which surface concentrates the medium force in order to obtain a rotation of the shaft and thereby generation of electricity.
2. A device according to claim 1, wherein the wind catching members (18) are positioned with an angle < 90 degrees in relation to the wind direction.
3. A device according to claim 1 or 2, another aspect of the invention, it is characterised in that it comprises at least two support structures and medium catching members.
4. A device according to any of the preceding claims, whereby it is rotatably arranged on a support structure so that it can be turned in the direction of movement of the medium, whereby this then is an air stream.
5. Device according to any of the claims 1 -3, whereby it is connected to a floating pontoon so that it may be submersed in a water stream which then is the power media.
PCT/SE2010/050190 2009-02-18 2010-02-18 Power plant WO2010096010A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0900212A SE0900212A1 (en) 2009-02-18 2009-02-18 Power plant
SE0900212-2 2009-02-18

Publications (1)

Publication Number Publication Date
WO2010096010A1 true WO2010096010A1 (en) 2010-08-26

Family

ID=42634103

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2010/050190 WO2010096010A1 (en) 2009-02-18 2010-02-18 Power plant

Country Status (2)

Country Link
SE (1) SE0900212A1 (en)
WO (1) WO2010096010A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013189970A (en) * 2012-01-18 2013-09-26 Fukushima Univ Power generating impeller and wind turbine including the same

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US457168A (en) * 1891-08-04 Windmill
US4316699A (en) * 1979-08-24 1982-02-23 Schott Lawrence A Windmill structure and power generator
US4427343A (en) * 1982-09-27 1984-01-24 George Fosdick Efficient wind turbine design for low velocity air flow
US4678923A (en) * 1985-11-13 1987-07-07 Fernand Trepanier Windmill
US20030201645A1 (en) * 2000-07-11 2003-10-30 Pacheco Pedro Saavedra Eolic marine electrical generator GEEM
DE20214412U1 (en) * 2002-09-18 2004-02-19 Sladkov, Semen The wind impeller of the wind power plant
GB2450624A (en) * 2007-06-30 2008-12-31 John Richard Carew Armstrong A support frame for water turbines adapted for movement with respect to an underwater mounting

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US457168A (en) * 1891-08-04 Windmill
US4316699A (en) * 1979-08-24 1982-02-23 Schott Lawrence A Windmill structure and power generator
US4427343A (en) * 1982-09-27 1984-01-24 George Fosdick Efficient wind turbine design for low velocity air flow
US4678923A (en) * 1985-11-13 1987-07-07 Fernand Trepanier Windmill
US20030201645A1 (en) * 2000-07-11 2003-10-30 Pacheco Pedro Saavedra Eolic marine electrical generator GEEM
DE20214412U1 (en) * 2002-09-18 2004-02-19 Sladkov, Semen The wind impeller of the wind power plant
GB2450624A (en) * 2007-06-30 2008-12-31 John Richard Carew Armstrong A support frame for water turbines adapted for movement with respect to an underwater mounting

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013189970A (en) * 2012-01-18 2013-09-26 Fukushima Univ Power generating impeller and wind turbine including the same

Also Published As

Publication number Publication date
SE0900212A1 (en) 2010-08-19

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