CA2481820A1 - Flow enhancement for underwater turbine generator - Google Patents

Flow enhancement for underwater turbine generator Download PDF

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Publication number
CA2481820A1
CA2481820A1 CA002481820A CA2481820A CA2481820A1 CA 2481820 A1 CA2481820 A1 CA 2481820A1 CA 002481820 A CA002481820 A CA 002481820A CA 2481820 A CA2481820 A CA 2481820A CA 2481820 A1 CA2481820 A1 CA 2481820A1
Authority
CA
Canada
Prior art keywords
turbine generator
hub
underwater turbine
flow enhancement
disclosed
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
Application number
CA002481820A
Other languages
French (fr)
Other versions
CA2481820C (en
Inventor
Russell Lee Stothers
Emmanuel Grillos
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Clean Current LP
Original Assignee
Clean Current Power Systems Inc
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
Priority to CA2640643A priority Critical patent/CA2640643C/en
Application filed by Clean Current Power Systems Inc filed Critical Clean Current Power Systems Inc
Priority to CA002481820A priority patent/CA2481820C/en
Priority to CA002549376A priority patent/CA2549376C/en
Priority to NZ553511A priority patent/NZ553511A/en
Priority to US11/663,001 priority patent/US7874788B2/en
Priority to AU2005284617A priority patent/AU2005284617B2/en
Priority to EP05714509A priority patent/EP1789676A1/en
Priority to JP2007531548A priority patent/JP2008513650A/en
Priority to KR1020077008610A priority patent/KR20070058620A/en
Priority to PCT/CA2005/000267 priority patent/WO2006029496A1/en
Priority to CN2005800313363A priority patent/CN101023264B/en
Publication of CA2481820A1 publication Critical patent/CA2481820A1/en
Priority to NO20071909A priority patent/NO20071909L/en
Application granted granted Critical
Publication of CA2481820C publication Critical patent/CA2481820C/en
Priority to US12/976,338 priority patent/US20110115228A1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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 is disclosed wherein a longitudinal hole is disposed in the central area, typically a hub of the generator, and a second, augmentor duct, preferably rigid, is disposed about the outer duct or housing of the unit to create a slot area. The slot and hollow hub create areas of smooth, laminar flow. The leading edges of the hub or central ring and the augmentor and outer ducts are elliptical to enhance the fluid dynamics of the structure. Optimal venture structures are disclosed.
CA002481820A 2004-09-17 2004-09-17 Flow enhancement for underwater turbine generator Expired - Fee Related CA2481820C (en)

Priority Applications (13)

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
PCT/CA2005/000267 WO2006029496A1 (en) 2004-09-17 2005-02-24 Flow enhancement for underwater turbine generator
US11/663,001 US7874788B2 (en) 2004-09-17 2005-02-24 Flow enhancement for underwater turbine
AU2005284617A AU2005284617B2 (en) 2004-09-17 2005-02-24 Flow enhancement for underwater turbine generator
EP05714509A EP1789676A1 (en) 2004-09-17 2005-02-24 Flow enhancement for underwater turbine generator
CA002549376A CA2549376C (en) 2004-09-17 2005-02-24 Flow enhancement for underwater turbine generator
KR1020077008610A KR20070058620A (en) 2004-09-17 2005-02-24 Flow enhancement for underwater turbine generator
NZ553511A NZ553511A (en) 2004-09-17 2005-02-24 Flow enhancement for underwater turbine generator
CN2005800313363A CN101023264B (en) 2004-09-17 2005-02-24 Flow enhancement for underwater turbine generator
JP2007531548A JP2008513650A (en) 2004-09-17 2005-02-24 Increased flow for underwater turbine generators.
NO20071909A NO20071909L (en) 2004-09-17 2007-04-16 Two way hydro turbine generator
US12/976,338 US20110115228A1 (en) 2004-09-17 2010-12-22 Flow enhancement for underwater turbine generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002481820A CA2481820C (en) 2004-09-17 2004-09-17 Flow enhancement for underwater turbine generator

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA2640643A Division CA2640643C (en) 2004-09-17 2004-09-17 Flow enhancement for underwater turbine generator

Publications (2)

Publication Number Publication Date
CA2481820A1 true CA2481820A1 (en) 2006-03-17
CA2481820C CA2481820C (en) 2009-09-01

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 After (1)

Application Number Title Priority Date Filing Date
CA2640643A Expired - Fee Related CA2640643C (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)

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CA2481820C (en) 2009-09-01
NZ553511A (en) 2010-10-29
CN101023264A (en) 2007-08-22
AU2005284617B2 (en) 2010-09-16
WO2006029496A1 (en) 2006-03-23
CA2640643A1 (en) 2006-03-17
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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