CA2640643A1 - Flow enhancement for underwater turbine generator - Google Patents
Flow enhancement for underwater turbine generator Download PDFInfo
- Publication number
- CA2640643A1 CA2640643A1 CA002640643A CA2640643A CA2640643A1 CA 2640643 A1 CA2640643 A1 CA 2640643A1 CA 002640643 A CA002640643 A CA 002640643A CA 2640643 A CA2640643 A CA 2640643A CA 2640643 A1 CA2640643 A1 CA 2640643A1
- Authority
- CA
- Canada
- Prior art keywords
- enhancement structure
- flow enhancement
- hub
- duct
- flow
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 5
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract 2
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
- 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
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/04—Machines or engines of reaction type; Parts or details peculiar thereto with substantially axial flow throughout rotors, e.g. propeller turbines
-
- 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
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/12—Blades; Blade-carrying 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
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/16—Stators
- F03B3/18—Stator blades; Guide conduits or vanes, e.g. adjustable
-
- 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
- F05B2240/12—Fluid guiding means, e.g. vanes
-
- 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
-
- 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
- F05B2240/14—Casings, housings, nacelles, gondels or the like, protecting or supporting assemblies there within
-
- 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
-
- 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
- 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
Abstract
A flow enhancement improvement for an underwater turbine generator (10) is disclosed wherein a longitudinal hole (240) is disposed in the central area (26), typically a hub (20) of the generator (10), and a second, augmentor duct (41), preferably rigid, is disposed about the outer duct (40) or housing of the unit to create a slot (200) area. The slot (200) and hollow hub (20) create areas of smooth, laminar fluid flow. The leading edges of the hub (20) or central ring and the augmentor (41) and outer ducts (40) are elliptical to enhance the fluid dynamics of the structure.
Claims (21)
1. A flow enhancement structure in a hydro turbine generator apparatus for generating electrical power from water flow, said apparatus comprising at least one rotor disk, and at least one generator, characterized by:
a) a bi-directional augmentor duct disposed about said rotor disk; and b) a longitudinal hole through the center of said rotor disk.
a) a bi-directional augmentor duct disposed about said rotor disk; and b) a longitudinal hole through the center of said rotor disk.
2. The flow enhancement structure of claim 1 wherein said bi-directional augmentor duct comprises two substantially symmetrical inlets situated at opposing ends of said bi-directional augmentor duct.
3. The flow enhancement structure of claim 2 additionally comprising an outer duct disposed about said rotor disk, and situated inside and substantially concentric with said bi-directional augmentor duct.
4. The flow enhancement structure of claim 3 additionally comprising a substantially annular slot defined between said outer duct and said bi-directional augmentor duct.
5. The flow enhancement structure of claim 2 wherein said rotor disk comprises an outer rotor rim and one or more blades attached to said outer rotor rim at their tips and extending radially inward from said outer rotor rim.
6. The flow enhancement structure of claim 5 wherein each of said one or more blades additionally comprise a root located distally from the outer rotor rim, and wherein said one or more blade roots are attached to an inner rotor rim defining said longitudinal hole through the center of said rotor disk.
7. The flow enhancement structure of claim 6 wherein said inner rotor rim defines a hub.
8. The flow enhancement structure of claim 2 wherein said generator is a flooded generator flooded with ambient water.
9. The flow enhancement structure of claim 5 wherein said generator is a flooded rim generator flooded with ambient water.
10. The flow enhancement structure of claim 7 wherein said generator is a flooded hub generator flooded with ambient water.
11. The flow enhancement structure of claim 5 wherein said one or more blades are substantially symmetric in cross section.
12. The flow enhancement structure of claim 2 wherein said bi-directional augmentor duct is substantially fixed in axial position relative to said rotor disk.
13. The flow enhancement structure of claim 3 additionally comprising one or more magnetic bearings situated between said rotor disk and said outer duct.
14. The flow enhancement structure of claim 7 additionally comprising one or more magnetic bearings situated between said at least one rotor disk and said hub.
15. The flow enhancement structure of claim 7 wherein said hub comprises two ends and an outer surface, said ends having a diameter equal to or lesser than the diameter of said hub at any other point, thereby creating a hydrodynamic shape and improving the efficiency of said structure.
16. The flow enhancement structure of claim 7 additionally comprising a plurality of struts projecting from said hub.
17. The flow enhancement structure of claim 16 wherein said plurality of struts project radially from said hub and are operable as guide vanes between said hub and said outer duct.
18. The flow enhancement structure of claim 17 wherein said plurality of struts are curved between said hub and said outer duct.
19. The flow enhancement structure of claim 16 wherein said plurality of struts are dimensioned for smooth annular flow between said outer duct and said bi-directional augmentor duct.
20. The flow enhancement structure of claim 2 wherein said bi-directional augmentor duct comprises an interior wall and wherein said interior wall converges to a central diameter located between said inlets which is smaller than an inlet diameter located proximate to said inlets.
21. The flow enhancement structure of claim 2 comprising at least two rotor disks, wherein a first rotor disk rotates in a first direction in response to the water flow and a second rotor disk rotates in a second direction opposite to the first direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2640643A CA2640643C (en) | 2004-09-17 | 2004-09-17 | Flow enhancement for underwater turbine generator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002481820A CA2481820C (en) | 2004-09-17 | 2004-09-17 | Flow enhancement for underwater turbine generator |
CA2640643A CA2640643C (en) | 2004-09-17 | 2004-09-17 | Flow enhancement for underwater turbine generator |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002481820A Division CA2481820C (en) | 2004-09-17 | 2004-09-17 | Flow enhancement for underwater turbine generator |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2640643A1 true CA2640643A1 (en) | 2006-03-17 |
CA2640643C CA2640643C (en) | 2011-05-31 |
Family
ID=36059656
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002481820A Expired - Fee Related CA2481820C (en) | 2004-09-17 | 2004-09-17 | Flow enhancement for underwater turbine generator |
CA2640643A Expired - Fee Related CA2640643C (en) | 2004-09-17 | 2004-09-17 | Flow enhancement for underwater turbine generator |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002481820A Expired - Fee Related CA2481820C (en) | 2004-09-17 | 2004-09-17 | Flow enhancement for underwater turbine generator |
Country Status (10)
Country | Link |
---|---|
US (2) | US7874788B2 (en) |
EP (1) | EP1789676A1 (en) |
JP (1) | JP2008513650A (en) |
KR (1) | KR20070058620A (en) |
CN (1) | CN101023264B (en) |
AU (1) | AU2005284617B2 (en) |
CA (2) | CA2481820C (en) |
NO (1) | NO20071909L (en) |
NZ (1) | NZ553511A (en) |
WO (1) | WO2006029496A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108386304A (en) * | 2018-04-24 | 2018-08-10 | 东方电气集团东方电机有限公司 | The seat ring of reaction turbine |
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2005
- 2005-02-24 WO PCT/CA2005/000267 patent/WO2006029496A1/en active Application Filing
- 2005-02-24 KR KR1020077008610A patent/KR20070058620A/en not_active Application Discontinuation
- 2005-02-24 US US11/663,001 patent/US7874788B2/en not_active Expired - Fee Related
- 2005-02-24 EP EP05714509A patent/EP1789676A1/en not_active Withdrawn
- 2005-02-24 CN CN2005800313363A patent/CN101023264B/en not_active Expired - Fee Related
- 2005-02-24 JP JP2007531548A patent/JP2008513650A/en active Pending
- 2005-02-24 AU AU2005284617A patent/AU2005284617B2/en not_active Ceased
- 2005-02-24 NZ NZ553511A patent/NZ553511A/en not_active IP Right Cessation
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2007
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2010
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CN108386304A (en) * | 2018-04-24 | 2018-08-10 | 东方电气集团东方电机有限公司 | The seat ring of reaction turbine |
Also Published As
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CA2481820C (en) | 2009-09-01 |
NZ553511A (en) | 2010-10-29 |
CN101023264A (en) | 2007-08-22 |
CA2481820A1 (en) | 2006-03-17 |
AU2005284617B2 (en) | 2010-09-16 |
WO2006029496A1 (en) | 2006-03-23 |
US7874788B2 (en) | 2011-01-25 |
CA2640643C (en) | 2011-05-31 |
KR20070058620A (en) | 2007-06-08 |
NO20071909L (en) | 2007-04-16 |
JP2008513650A (en) | 2008-05-01 |
US20070284884A1 (en) | 2007-12-13 |
US20110115228A1 (en) | 2011-05-19 |
EP1789676A1 (en) | 2007-05-30 |
AU2005284617A1 (en) | 2006-03-23 |
CN101023264B (en) | 2013-05-08 |
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