WO2004061297A1 - 風力発電装置 - Google Patents
風力発電装置 Download PDFInfo
- Publication number
- WO2004061297A1 WO2004061297A1 PCT/JP2002/013785 JP0213785W WO2004061297A1 WO 2004061297 A1 WO2004061297 A1 WO 2004061297A1 JP 0213785 W JP0213785 W JP 0213785W WO 2004061297 A1 WO2004061297 A1 WO 2004061297A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- duct
- impeller
- wind power
- pencil body
- wind
- 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.)
- Ceased
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
- F03D1/04—Wind motors with rotation axis substantially parallel to the air flow entering the rotor having stationary wind-guiding means, e.g. with shrouds or channels
-
- 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
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/80—Arrangement of components within nacelles or towers
-
- 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
- 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
- Y02E10/72—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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S415/00—Rotary kinetic fluid motors or pumps
- Y10S415/905—Natural fluid current motor
- Y10S415/908—Axial flow runner
Definitions
- the present invention relates to a substantially cylindrical duct having a substantially wing-shaped cross-section of a side wall, an impeller having a plurality of outwardly protruding blades and rotatable around a duct axis, and a streamlined pencil together with the impeller.
- the present invention relates to a wind power generator having a body and a nacelle accommodating a generator that uses the rotational force of an impeller.
- an object of the present invention is to provide a wind turbine generator capable of further improving the power generation efficiency. Disclosure of the invention
- a wind power generator according to the present invention for solving the above-mentioned problem has an airfoil shape in which a cross-sectional shape of a side wall of a duct can generate a decompression region behind the duct and can suppress generation of a vortex behind the duct.
- the pencil body is provided with the tip end inside the duct, and the tip end protrudes from the rear end of the duct so that the rear end is close to the tip of the decompression region generated behind the duct. It is characterized by being provided in the maximum wind speed region inside the duct.
- the tip of the decompression region is tapered and unstable, and easily fluctuates in the radial direction of the duct. Disappears as a whole. This does not increase the wind speed inside the duct and, consequently, the power generation efficiency.
- the rear end of the pencil body protrudes from the rear of the duct so as to approach the front end of the decompression region, whereby the front end of the decompression region is attracted to the rear end of the pencil body. Fluctuation is suppressed.
- the decompression area behind the duct is constantly maintained, and an increase in the wind speed inside the duct can be ensured.
- the impeller can be rotated to the maximum.
- the wind turbine generator of the present invention (1) the wind speed inside the duct increases due to the generation of the decompression zone behind the duct, (2) the steady maintenance of the decompression zone by suppressing the fluctuation at the tip of the decompression zone, and (3) the Through the rotation of the impeller in the maximum wind speed region inside the turbine, the power generation efficiency can be further improved.
- the chord of the airfoil having a duct side wall cross section is inclined by a predetermined angle with respect to the duct axis, and is located at a position of a tip end of a decompression region that changes according to the predetermined angle.
- the length of protrusion of the rear end of the pencil body from the rear of the duct is adjusted.
- the degree of decompression in the decompression region behind the duct fluctuates as the chord of the airfoil with the side wall cross section of the duct is inclined with respect to the duct axis. Therefore, by adjusting the inclination so that the degree of decompression in the decompression area is maximized, the wind that has flowed into the duct from the front of the duct is drawn in more strongly by the decompression area behind the duct, and the wind speed inside the duct Can be further increased. Also, as the inclination increases, the position of the tip of the decompression region generated behind the duct shifts forward. Accordingly, the length of protrusion from the duct is adjusted so that the rear end of the pencil body reaches the front end of the decompression region in accordance with the inclination, so that the front end of the decompression region can be prevented from wobbling.
- the predetermined angle is in a range of 2 ° to 12 °
- a protruding length of the pencil body from the rear of the duct is in a range of 0.1 to 0.4 times the duct length. It is characterized by being set.
- the “predetermined angle” is defined as “positive” as the inclination angle at which the leading edge of the chord is further away from the duct axis than the trailing edge.
- the impeller blades are 0.07 times the duct length forward and 0.18 the duct length backward, based on the minimum inner diameter of the duct. It is characterized in that it is provided within the double range.
- FIG. 1 is a side sectional view of the wind turbine generator of the present embodiment
- FIGS. 2 to 4 are explanatory diagrams of functions of the wind turbine generator of the present embodiment.
- the wind turbine shown in Fig. 1 has a substantially cylindrical duct 1, an impeller 2 that has a plurality of outwardly projecting blades 22, and is rotatable around the duct axis X, and a streamlined type with the impeller 2. And a nacelle 5 that houses a generator 4 that utilizes the rotational force of the impeller 2 transmitted via a rotating shaft 24.
- the nacelle 5 is fixed to the duct 1 by a column 6 protruding from the inner wall of the duct 1.
- the energy generated by the generator 4 is supplied to the outside through the lead 6 penetrating the column 6 and the duct 1.
- Duct 1 has an airfoil cross section. This is because a decompression region can be generated behind the duct 1 and the generation of a vortex behind the duct 1 is suppressed as described later.
- NACA 653 — 6 18 (9 — 0.5), NA CA 633-618, FA 66 — S—1 96 V 1 etc. is adopted.
- chord 11 of the duct 1 in the side wall cross section is inclined by a predetermined angle 0 with respect to the duct axis 12.
- the predetermined angle 0 is defined as positive in the direction in which the ratio of the leading end diameter to the trailing end diameter of duct 1 increases.
- the pencil body 3 is provided such that the tip of the impeller 2 corresponding to the tip thereof is inside the duct 1, and the rear end of the nacelle 4 corresponding to the rear end protrudes from the rear end of the duct 1. Protruding length from duct 1 of the rear end of the pencil body 3 L 2 is set to Flip the duct length (> 0) times.
- the impeller 21 of the impeller 2 has a maximum wind speed region 13 inside the duct 1, that is, Based on the minimum inner diameter part 14 of the duct 1 as a reference, it is provided in the range of 0.07 times the duct length 1 ⁇ in front and 0.18 times the duct length Li in the rear, as described above.
- the function of the wind power generator of the present invention will be described with reference to FIGS. 2 to 4 .
- the inventor of the present application simulated the wind flow and wind speed near the duct 1 when a wind heading from the front to the rear of the duct 1. Considered by.
- the predetermined angle 0 was set to 8.7 °
- the duct length L i was set to 5, 000 [mm]
- the minimum inner diameter of duct 1 was 1,800 [mm]
- the tip diameter was 3,166 [mm].
- the maximum wind speed region 13 of duct 1 (the acceleration speed in this region is 2.2, that is, the wind speed in the region 13 is 2.2 times the wind speed at the tip end. seen. wind energy, the wind speed V, the fluid density p, but p S v you express a 3/2 as the cross-sectional area S of the duct 1, the opening cross-sectional area of the duct 1 in the present embodiment the cross-sectional of the minimum inner diameter position Because it is approximately 3.1 times the area, the wind energy in the maximum wind speed region 13 of duct 1 can be amplified to 2.2 3 / 3.1 to 3.4 3 times the wind energy in front of duct 1 .
- the rear end of the pencil body 3 protrudes from the rear of the duct 1 and reaches the front end 51 of the decompression region 50.
- the front end 51 of the decompression region 50 is attracted to the rear end of the pencil body 3 and is stabilized, and its fluctuation is suppressed.
- the pressure reduction region 50 behind the duct 1 is constantly maintained, and an increase in the wind speed inside the duct 1 can be secured.
- the impeller 2 can be rotated to the maximum.
- the wind turbine generator of the present invention (1) an increase in the wind speed inside the duct 1 due to the generation of the decompression region 50 behind the duct 1; Steady maintenance of 50, 3 Through the rotation of the impeller 2 in the maximum wind speed region 13 inside the duct 1, the power generation efficiency can be further improved.
- the predetermined angle 0 is changed in FIG.
- the predetermined angle 0 is set to 2 ° or more and 12 ° or less
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
Description
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002511877A CA2511877A1 (en) | 2002-12-27 | 2002-12-27 | Wind power generation device |
| AU2002368537A AU2002368537A1 (en) | 2002-12-27 | 2002-12-27 | Wind power generation device |
| PCT/JP2002/013785 WO2004061297A1 (ja) | 2002-12-27 | 2002-12-27 | 風力発電装置 |
| US10/540,849 US7354245B2 (en) | 2002-12-27 | 2002-12-27 | Wind power generation device |
| JP2004564442A JP4395869B2 (ja) | 2002-12-27 | 2002-12-27 | 風力発電装置 |
| EP02790934A EP1586770A4 (en) | 2002-12-27 | 2002-12-27 | DEVICE FOR PRODUCING WIND ENERGY |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2002/013785 WO2004061297A1 (ja) | 2002-12-27 | 2002-12-27 | 風力発電装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004061297A1 true WO2004061297A1 (ja) | 2004-07-22 |
Family
ID=32697331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2002/013785 Ceased WO2004061297A1 (ja) | 2002-12-27 | 2002-12-27 | 風力発電装置 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7354245B2 (ja) |
| EP (1) | EP1586770A4 (ja) |
| JP (1) | JP4395869B2 (ja) |
| AU (1) | AU2002368537A1 (ja) |
| CA (1) | CA2511877A1 (ja) |
| WO (1) | WO2004061297A1 (ja) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2706521A1 (en) * | 2007-11-23 | 2009-05-28 | Atlantis Resources Corporation Pte Limited | Control system for extracting power from water flow |
| GB2456786A (en) * | 2008-01-23 | 2009-07-29 | Pilot Drilling Control Ltd | Turbine cowling |
| KR101292832B1 (ko) * | 2008-04-14 | 2013-08-02 | 아틀란티스 리소시스 코포레이션 피티이 리미티드 | 중앙축 수력 터빈 |
| US8801386B2 (en) * | 2008-04-14 | 2014-08-12 | Atlantis Resources Corporation Pte Limited | Blade for a water turbine |
| KR20120042746A (ko) | 2009-04-28 | 2012-05-03 | 아틀란티스 리소시스 코포레이션 피티이 리미티드 | 수중 동력 발생기 |
| US8452599B2 (en) * | 2009-06-10 | 2013-05-28 | Toyota Motor Engineering & Manufacturing North America, Inc. | Method and system for extracting messages |
| US8269616B2 (en) * | 2009-07-16 | 2012-09-18 | Toyota Motor Engineering & Manufacturing North America, Inc. | Method and system for detecting gaps between objects |
| US8337160B2 (en) * | 2009-10-19 | 2012-12-25 | Toyota Motor Engineering & Manufacturing North America, Inc. | High efficiency turbine system |
| CA2776533A1 (en) | 2009-10-27 | 2011-05-05 | Atlantis Resources Corporation Pte Limited | Underwater power generator |
| US8237792B2 (en) | 2009-12-18 | 2012-08-07 | Toyota Motor Engineering & Manufacturing North America, Inc. | Method and system for describing and organizing image data |
| US8424621B2 (en) | 2010-07-23 | 2013-04-23 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omni traction wheel system and methods of operating the same |
| US9041238B2 (en) * | 2013-02-05 | 2015-05-26 | Ned McMahon | Variable wing venturi generator |
| WO2016054080A1 (en) * | 2014-09-30 | 2016-04-07 | Texas Tech University System | Fluid flow energy extraction system and method related thereto |
| USD808000S1 (en) | 2015-10-16 | 2018-01-16 | Primo Wind, Inc. | Exhaust fan recapture generator |
| US10060647B2 (en) | 2015-10-16 | 2018-08-28 | Primo Wind, Inc. | Rooftop exhaust collectors and power generators, and associated systems and methods |
| US11047360B1 (en) | 2017-11-07 | 2021-06-29 | National Technology & Engineering Solutions Of Sandia, Llc | Methods, systems, and devices to optimize a fluid harvester |
| US11391262B1 (en) | 2021-08-26 | 2022-07-19 | Aeromine Technologies, Inc. | Systems and methods for fluid flow based renewable energy generation |
| US11879435B1 (en) | 2023-06-21 | 2024-01-23 | Aeromine Technologies, Inc. | Systems and methods for cold-climate operation of a fluid-flow based energy generation system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4140433A (en) * | 1975-07-10 | 1979-02-20 | Eckel Oliver C | Wind turbine |
| JPS5674871U (ja) * | 1979-11-10 | 1981-06-18 | ||
| EP0045202A1 (en) * | 1980-07-26 | 1982-02-03 | Timothy Michael Gilchrist | Improvements in wind powered electric generators |
| EP0045264A2 (fr) * | 1980-07-29 | 1982-02-03 | Megatec - Industrie | Générateur électrique actionné par le vent |
| JP2003028043A (ja) * | 2001-07-13 | 2003-01-29 | Fujin Corporation:Kk | 風力発電装置 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR975625A (fr) | 1942-03-16 | 1951-03-07 | Turbine aérienne | |
| US3339078A (en) * | 1964-12-17 | 1967-08-29 | Crompton George | Wind turbine electro-generators |
| US4075500A (en) * | 1975-08-13 | 1978-02-21 | Grumman Aerospace Corporation | Variable stator, diffuser augmented wind turbine electrical generation system |
| GB2061239A (en) | 1979-10-29 | 1981-05-13 | King Instrument Corp | Cassette magazine feeder |
-
2002
- 2002-12-27 JP JP2004564442A patent/JP4395869B2/ja not_active Expired - Fee Related
- 2002-12-27 AU AU2002368537A patent/AU2002368537A1/en not_active Abandoned
- 2002-12-27 CA CA002511877A patent/CA2511877A1/en not_active Abandoned
- 2002-12-27 EP EP02790934A patent/EP1586770A4/en not_active Withdrawn
- 2002-12-27 WO PCT/JP2002/013785 patent/WO2004061297A1/ja not_active Ceased
- 2002-12-27 US US10/540,849 patent/US7354245B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4140433A (en) * | 1975-07-10 | 1979-02-20 | Eckel Oliver C | Wind turbine |
| JPS5674871U (ja) * | 1979-11-10 | 1981-06-18 | ||
| EP0045202A1 (en) * | 1980-07-26 | 1982-02-03 | Timothy Michael Gilchrist | Improvements in wind powered electric generators |
| EP0045264A2 (fr) * | 1980-07-29 | 1982-02-03 | Megatec - Industrie | Générateur électrique actionné par le vent |
| JP2003028043A (ja) * | 2001-07-13 | 2003-01-29 | Fujin Corporation:Kk | 風力発電装置 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1586770A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20060088413A1 (en) | 2006-04-27 |
| EP1586770A1 (en) | 2005-10-19 |
| AU2002368537A1 (en) | 2004-07-29 |
| CA2511877A1 (en) | 2004-07-22 |
| EP1586770A4 (en) | 2007-03-14 |
| US7354245B2 (en) | 2008-04-08 |
| JPWO2004061297A1 (ja) | 2006-05-11 |
| JP4395869B2 (ja) | 2010-01-13 |
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