CA2529380A1 - Wind energy conversion unit - Google Patents
Wind energy conversion unitInfo
- Publication number
- CA2529380A1 CA2529380A1 CA002529380A CA2529380A CA2529380A1 CA 2529380 A1 CA2529380 A1 CA 2529380A1 CA 002529380 A CA002529380 A CA 002529380A CA 2529380 A CA2529380 A CA 2529380A CA 2529380 A1 CA2529380 A1 CA 2529380A1
- Authority
- CA
- Canada
- Prior art keywords
- turbine
- energy conversion
- wind
- wind energy
- conversion unit
- 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.)
- Granted
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract 11
- 230000001133 acceleration Effects 0.000 claims 1
- 238000006757 chemical reactions by type Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 claims 1
- 238000010248 power generation Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 230000003068 static effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
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
- F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor the axis being vertical
-
- 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
- F03D9/20—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
- F05B2240/10—Stators
- F05B2240/13—Stators to collect or cause flow towards or away from turbines
- F05B2240/133—Stators to collect or cause flow towards or away from turbines with a convergent-divergent guiding structure, e.g. a Venturi conduit
-
- 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
Abstract
The Wind Energy Conversion Unit (WECU) according to the invention is intended to convert the wind energy into electric power, but at a higher efficiency than actual propeller-like turbines.
Unlike the actual turbines, this WECU is based on the expansion through the turbine from the total air pressure due to stagnation inside the unit to the lower pressure provided by the accelerated air flow over the top of unit, accordingly designed.
As a result, the unit is a vertical axis machine, the turbine is horizontal on the top of the unit, no yaw system and no tower are necessary.
The simplicity of construction, lack of environmental impact, longer life, working at any wind speed, higher efficiency, no sensitivity to wind gusts, the lack of tower and yaw system and the higher power density per area of used land would enable such a units to be intensively used as power sources.
Unlike the actual turbines, this WECU is based on the expansion through the turbine from the total air pressure due to stagnation inside the unit to the lower pressure provided by the accelerated air flow over the top of unit, accordingly designed.
As a result, the unit is a vertical axis machine, the turbine is horizontal on the top of the unit, no yaw system and no tower are necessary.
The simplicity of construction, lack of environmental impact, longer life, working at any wind speed, higher efficiency, no sensitivity to wind gusts, the lack of tower and yaw system and the higher power density per area of used land would enable such a units to be intensively used as power sources.
Claims (9)
1. Wind energy conversion unit according to the invention, consisting of a square prismatic body enclosing the air inlet room, gearbox, generator and accessories and oriented along the wind prevailing direction, a vertical axis turbine located at the top of unit and a profiled top case consisting of inclined flat faces.
2. Wind energy conversion unit according to Claim 1 wherein the pressure drop acting on the turbine is created between the stagnation pressure inside the admission room and the suction area on the top of unit determined by the flow acceleration over the top case appropriately profiled.
3. Wind energy conversion unit according to Claims 1 and 2 wherein the pressure drop is additionally increased by adding a conical diffuser as the exhaust duct of turbine, whose divergence angle is established in such a way that no flow separations occur on its walls.
4. Wind energy conversion unit according to Claim 1 wherein the turbine used for power generation is of impulse-reaction type and comprises a stator and a rotor with high solidity blades fitted on a central hub, so that the air enters axially in the stator and leaves the rotor axially too, providing that a maximum amount of energy will be extracted from the wind kinetic energy.
5. Wind energy conversion unit according to Claim 1 wherein the unit body has on each of 4 sides a pair of doors which open or close according to the wind direction, so that a maximum amount of air mass is directed to the turbine to get the requested power and therefore, no yawing system is needed.
6. Wind energy conversion unit according to Claims 1 and 5 where, in order to keep the turbine running at high speed wind, the back doors are partially opened and the stagnation pressure inside the unit is thus maintained at a level which provides a safely running of the turbine.
7. Wind energy conversion unit according to Claims 1 and 5 where, in order to prevent damaging of turbine during stormy wind (hurricane), the back doors are totally opened so that the ambient static pressure will be created inside the unit, providing a minimum pressure drop on the turbine, so that this will be protected against the wind gusts and high turbulence.
8. Wind energy conversion unit according to Claims 1-7 where, in order to increase the density of power per square meter of used land, a second turbine will be mounted on the bottom of the unit, both turbines being independent and having each a gearbox and a generator, the suction area on the bottom being created by a funnel effect.
9. Assembly of wind energy conversion units according to Claims 1-7 consisting of a tower of several double-turbine units where the bottom unit has only one turbine, so that more power per square meter of used land will be achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2529380A CA2529380C (en) | 2005-11-18 | 2005-11-18 | Wind energy conversion unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2529380A CA2529380C (en) | 2005-11-18 | 2005-11-18 | Wind energy conversion unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2529380A1 true CA2529380A1 (en) | 2007-05-18 |
| CA2529380C CA2529380C (en) | 2011-03-29 |
Family
ID=38051445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2529380A Expired - Fee Related CA2529380C (en) | 2005-11-18 | 2005-11-18 | Wind energy conversion unit |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2529380C (en) |
-
2005
- 2005-11-18 CA CA2529380A patent/CA2529380C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2529380C (en) | 2011-03-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20131119 |