WO2010137929A1 - Shield means for wind turbine - Google Patents

Shield means for wind turbine Download PDF

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Publication number
WO2010137929A1
WO2010137929A1 PCT/LY2009/000001 LY2009000001W WO2010137929A1 WO 2010137929 A1 WO2010137929 A1 WO 2010137929A1 LY 2009000001 W LY2009000001 W LY 2009000001W WO 2010137929 A1 WO2010137929 A1 WO 2010137929A1
Authority
WO
WIPO (PCT)
Prior art keywords
capability
units
cover
blades
wind
Prior art date
Application number
PCT/LY2009/000001
Other languages
French (fr)
Inventor
Abuzed Nagi Dabbab
Original Assignee
Abuzed Nagi Dabbab
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 Abuzed Nagi Dabbab filed Critical Abuzed Nagi Dabbab
Priority to GB1202488.1A priority Critical patent/GB2484643A/en
Publication of WO2010137929A1 publication Critical patent/WO2010137929A1/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
    • 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
    • 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
    • F03D3/0472—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 orientation being adaptable to the wind motor
    • 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
    • F03D3/0472—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 orientation being adaptable to the wind motor
    • F03D3/0481—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 orientation being adaptable 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
    • 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
    • F03D3/0472—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 orientation being adaptable to the wind motor
    • F03D3/049—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 orientation being adaptable to the wind motor with converging inlets, i.e. the shield intercepting an area greater than the effective rotor area
    • 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
    • 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
    • F05B2250/20—Geometry three-dimensional
    • F05B2250/23—Geometry three-dimensional prismatic
    • F05B2250/231—Geometry three-dimensional prismatic cylindrical
    • 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

  • Consists of a hallow tube ((A)). Held to a ceiling of a platform ((B)), supported by the outer supports ((C)).
  • the hallow tube is made:
  • the cover has an inlet, for entrance of the wind to rotate the blades inside the cover, and an outlet which is offset from the alignment of the inlet, also the size of the outlet is smaller to cause differential pressure.
  • the opening is in the lower surface of the rotary cover ((F)), where the propeller axial can rotate freely with the blades rotating inside the cover ((Fig-2)).
  • the cover has a fin attached to it, enabling the wind to direct the rotary cover to face the wind direction.
  • the propellers axial is held via bearings by a support, and connected to a gear box, without having it is weight being imposed on the gears.
  • Each blade consists of an arm connected to the axial, at the end of the arm a (triangular shape) like an arrow, while at the rear is shaped as a (rectangular surface), to allow the wind to rotate the blades, while the arrow shaped front is for aerodynamic design. (Figr2).
  • the cover is suspended in alignment of the propeller axial, the lower surface of the rotary cover in closed leaving only the opening for the propeller axial opei allowing only the air entering through the inlet cover to rotate the blades and to prevent any disturbance of the air flow which is traveling from beneath.
  • the cover When there is any wind, the cover will turn to face the wind direction, which will allow the air to enter through the inlet and cause the blades to rotate; the upwind blades will have no wind resistance since the wind is blocked by the covers front side.
  • a double inlet cover is also used; which resulted in a higher RPM of the blades. (Fig - 3).
  • the variation in RPM between a single inlet and a double inlet depends on the number of blades, as well as the inlet opening size.
  • the design of the rotary cover and the propeller blades have to be in proportion to allow the air to travel in the inlet, and flow over the body, in a design so that the cover, does not become as a barriers for the wind.
  • Side view ((fig -I)) .
  • the units are connected to each other in a towered construction, via their axial, without their weights being imposed on each other.
  • each unit is placed on the platform of the tower which is held by the support, and the axial are connected, to obtain the total power obtained by all the units. (pl+p2+p3 pn).
  • a gear box when driven by one unit will require strong winds to operate it , while joining a number of units , to operate the same gear box will require less wind speeds , any addition in wind speed to operate it , will result in more power being produced.

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

The windshield means for a wind turbine with vertical axis (A) consists of a cylindrically shaped cover (e) with air inlet and air outlet. The cover (e) protects the back running blades from the wind. The cover (e) can rotate with respect to the rotor (e). A fin (g) fixed to the cover (e) orientates the cover (e) relatively to the wind. Several rotor-cover-assemblies can be mounted in a base frame (B, C) above each other.

Description

SHIELD MEANS FOR WIND TURBINE
General description
Propellers which turn in the horizontal plane, known as (vertical wind propellers); since they turn around a vertical axis, face the problem of the resisting wind for the blades which turn against the wind direction, (up wind blades).
Irregardless of haw much improvement is made to reduce the total drag of their design, (profile and induced drag), only a very little percentage in their performance can be achieved.
The application of a rotary cover will block the air which resists the upwind blades, and gives a positive performance for the blades by being rotated from one side, by the wind.
Design of a Rotary Cover: - (Fig-1)
Consists of a hallow tube ((A)). Held to a ceiling of a platform ((B)), supported by the outer supports ((C)).
The hallow tube is made:
1- To allow the propeller axial of the second unit to be connected through it to the propeller axial of the lower unit. ((Fig-4)). ((Fig-5)).
2- To have bearings ((d)) to be connected to the outer part of the tube , to have the body of the cover ((e)) , connected to the bearings via a connecting support, to allow for free rotation of the whole cover.
The cover has an inlet, for entrance of the wind to rotate the blades inside the cover, and an outlet which is offset from the alignment of the inlet, also the size of the outlet is smaller to cause differential pressure.
The opening is in the lower surface of the rotary cover ((F)), where the propeller axial can rotate freely with the blades rotating inside the cover ((Fig-2)).
The cover has a fin attached to it, enabling the wind to direct the rotary cover to face the wind direction.
When the units are placed and connected in one tower, all of their inlets and outlets are unified in a duplicate design, this enables the blades of all the units to turn in the same direction even with changes in the wind direction with variation of height. ((Fig-5)).
The propellers and rotary cover as one unit:-
The propellers axial is held via bearings by a support, and connected to a gear box, without having it is weight being imposed on the gears.
Each blade consists of an arm connected to the axial, at the end of the arm a (triangular shape) like an arrow, while at the rear is shaped as a (rectangular surface), to allow the wind to rotate the blades, while the arrow shaped front is for aerodynamic design. (Figr2).
The cover is suspended in alignment of the propeller axial, the lower surface of the rotary cover in closed leaving only the opening for the propeller axial opei allowing only the air entering through the inlet cover to rotate the blades and to prevent any disturbance of the air flow which is traveling from beneath.
When there is any wind, the cover will turn to face the wind direction, which will allow the air to enter through the inlet and cause the blades to rotate; the upwind blades will have no wind resistance since the wind is blocked by the covers front side.
A double inlet cover is also used; which resulted in a higher RPM of the blades. (Fig - 3).
Figure imgf000003_0001
The variation in RPM between a single inlet and a double inlet depends on the number of blades, as well as the inlet opening size.
In (Fig-3a) the air entering through the second inlet 2a, will increase in Speed due to the decrease in pressure at the point 2b. Causing the wind to rotate the blades at two different points, which resulted in a higher RPM.
In the practical application the protruding of the second inlet did not offset the cover alignment with the wind direction; this was counteracted by the area size of the fin.
The factors which affect the- performance are:
1- Wind speed.
2- Length of the arm of the blade. 3- Width of the blade.
4- Material used.
Extending the length of blade resulted in a lower RPM5 less profile drag, and more power obtained.
Figure imgf000004_0001
In the practical application when the arm of the blades was extended by 20cm in length, more power was obtained by lifting more weights. This caused each blade arm to act as a lever. Also adjustment was made for the gearbox to obtain high rpm for the connection of generators. Using light material, for the blades and the arm of the blades, also axial desigr and connections resulted in more power being obtained.
Figure imgf000005_0001
The design of the rotary cover and the propeller blades have to be in proportion to allow the air to travel in the inlet, and flow over the body, in a design so that the cover, does not become as a barriers for the wind. Side view ((fig -I)) .
Connecting the units
The units are connected to each other in a towered construction, via their axial, without their weights being imposed on each other.
In ((fig -4)) shows the axial of an upper unit is passed through the supporting tube of the cover, with alignment of the axis, then connected to the lower unit, in a geared connection, where the lower end of the axial in upper unit is in a geared shape, comiected to the top end of the propeller axial ((hub)), which is hallow with gear allowance for the axial to be connected.
The process of connecting the units to each other is repeated in the tower construction.
The weigh of each unit is placed on the platform of the tower which is held by the support, and the axial are connected, to obtain the total power obtained by all the units. (pl+p2+p3 pn).
Example: when a car in pushed by one person, the effort required is great, while when so many individuals join to push the car, the effort required by each individual is less, while the power obtained is great. Although the effort given by each individual is variable, yet their total power is all imposed on pushing the cat The same example is applied on the tower construction , a gear box when driven by one unit , will require strong winds to operate it , while joining a number of units , to operate the same gear box will require less wind speeds , any addition in wind speed to operate it , will result in more power being produced.
Figure imgf000006_0001

Claims

Claims :-
1- Design of a rotary cover having a fixed fin.
2- Design of a rotary cover having one inlet, or more.
3- Connecting the units.
4- Weights of the units imposed on the supports of the tower and not on each other.
5- The use of a double fin when large diameter rotary cover is used.
6- Capability on increasing power obtained by enlarging the size of the units (propler blade, arms), and by increasing number of units.
7- Capability of operating one gear box, or more in one tower, by operating one or more generator, or mechanical pump.
8- Capability of varying the size of inlets and outlets to form differential pressures.
9- Capability to vary the number of propeller blades.
10- Capability to vary the aerodynamic design of blades, (semilciruler, arrowed shape, or combined).
11- Simplicity of joining the generators or the mechanical driven pumps.
12- Capability of stopping the units by the use of brake pads connected to them.
13- Capability of dismantling one unit, and connecting the remainder units to each other.
14- Protection of diagrams provided.
PCT/LY2009/000001 2009-05-25 2009-07-29 Shield means for wind turbine WO2010137929A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1202488.1A GB2484643A (en) 2009-05-25 2009-07-29 Shield means for wind turbine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LY3801/2009 2009-05-25
LY380109 2009-05-25

Publications (1)

Publication Number Publication Date
WO2010137929A1 true WO2010137929A1 (en) 2010-12-02

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Country Status (2)

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WO (1) WO2010137929A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2391741A1 (en) * 2012-09-28 2012-11-29 Universidad De La Rioja Aeroturbina of vertical axis of drag with variable admission (Machine-translation by Google Translate, not legally binding)
WO2013105843A1 (en) * 2012-01-12 2013-07-18 Santana Marcias Jose Luis Vertical-axis wind turbine with multipurpose scalable surrounding baffle having independent couplings

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1812741A (en) * 1930-01-31 1931-06-30 Espinosa Eduardo Jimenez Windmill
US1974008A (en) * 1933-01-25 1934-09-18 Biehn Warren Wind turbine
US4057270A (en) * 1975-04-03 1977-11-08 Barry Alan Lebost Fluid turbine
FR2369442A1 (en) * 1976-10-29 1978-05-26 Gil Noel Wind powered engine for vehicle - has turbine with blade screening on one side and driving wheel or propeller
DE8631273U1 (en) * 1986-11-21 1987-04-09 Wilhelm, Alfred, 5000 Köln Device for generating power through wind
DE8712757U1 (en) * 1987-09-22 1988-03-10 Marx, Peter, 6686 Eppelborn Protective bell
DE3734106A1 (en) * 1987-10-06 1989-04-27 Alfried Stranz Windwheel
DE4317617A1 (en) * 1993-05-27 1994-12-01 Ferenc Tabori Wind wheel having wind boxes
EP1002949A2 (en) * 1998-11-21 2000-05-24 Wilhelm Groppel Vertical axis wind turbine
DE10140516A1 (en) * 2001-08-17 2003-03-20 Medvetskiy Oleksandr Wind-powered electrical energy generator has stator provided with electromagnetic windings cooperating with permanent magnets or electromagnets of wind turbine rotor
WO2006039727A1 (en) * 2004-10-07 2006-04-13 Michael Robert Des Ligneris Shielded vertical axis turbine
JP2008025518A (en) * 2006-07-24 2008-02-07 Kiyoshi Kato Wind turbine generator
DE202009000558U1 (en) * 2009-01-17 2009-06-04 Lange, Thomas Use of wind energy to generate electricity and warm water by means of a Savonius rotor with optimized wind flow to the rotor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8712747U1 (en) * 1987-09-22 1987-12-03 Selig, Peter, 8500 Nürnberg Device for magnetizing water

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1812741A (en) * 1930-01-31 1931-06-30 Espinosa Eduardo Jimenez Windmill
US1974008A (en) * 1933-01-25 1934-09-18 Biehn Warren Wind turbine
US4057270A (en) * 1975-04-03 1977-11-08 Barry Alan Lebost Fluid turbine
FR2369442A1 (en) * 1976-10-29 1978-05-26 Gil Noel Wind powered engine for vehicle - has turbine with blade screening on one side and driving wheel or propeller
DE8631273U1 (en) * 1986-11-21 1987-04-09 Wilhelm, Alfred, 5000 Köln Device for generating power through wind
DE8712757U1 (en) * 1987-09-22 1988-03-10 Marx, Peter, 6686 Eppelborn Protective bell
DE3734106A1 (en) * 1987-10-06 1989-04-27 Alfried Stranz Windwheel
DE4317617A1 (en) * 1993-05-27 1994-12-01 Ferenc Tabori Wind wheel having wind boxes
EP1002949A2 (en) * 1998-11-21 2000-05-24 Wilhelm Groppel Vertical axis wind turbine
DE10140516A1 (en) * 2001-08-17 2003-03-20 Medvetskiy Oleksandr Wind-powered electrical energy generator has stator provided with electromagnetic windings cooperating with permanent magnets or electromagnets of wind turbine rotor
WO2006039727A1 (en) * 2004-10-07 2006-04-13 Michael Robert Des Ligneris Shielded vertical axis turbine
JP2008025518A (en) * 2006-07-24 2008-02-07 Kiyoshi Kato Wind turbine generator
DE202009000558U1 (en) * 2009-01-17 2009-06-04 Lange, Thomas Use of wind energy to generate electricity and warm water by means of a Savonius rotor with optimized wind flow to the rotor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013105843A1 (en) * 2012-01-12 2013-07-18 Santana Marcias Jose Luis Vertical-axis wind turbine with multipurpose scalable surrounding baffle having independent couplings
ES2391741A1 (en) * 2012-09-28 2012-11-29 Universidad De La Rioja Aeroturbina of vertical axis of drag with variable admission (Machine-translation by Google Translate, not legally binding)

Also Published As

Publication number Publication date
GB201202488D0 (en) 2012-03-28
GB2484643A (en) 2012-04-18

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