WO2012112613A3 - Turbine blades, systems and methods - Google Patents

Turbine blades, systems and methods Download PDF

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Publication number
WO2012112613A3
WO2012112613A3 PCT/US2012/025127 US2012025127W WO2012112613A3 WO 2012112613 A3 WO2012112613 A3 WO 2012112613A3 US 2012025127 W US2012025127 W US 2012025127W WO 2012112613 A3 WO2012112613 A3 WO 2012112613A3
Authority
WO
WIPO (PCT)
Prior art keywords
pressure side
suction side
blade
suction
systems
Prior art date
Application number
PCT/US2012/025127
Other languages
French (fr)
Other versions
WO2012112613A2 (en
Inventor
Paul Lees
Robert J. Englar
Graham M. BLAYLOCK
Original Assignee
Caitin, Inc.
Georgia Tech Research Corporation Georgia Institute Of Technology
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 Caitin, Inc., Georgia Tech Research Corporation Georgia Institute Of Technology filed Critical Caitin, Inc.
Publication of WO2012112613A2 publication Critical patent/WO2012112613A2/en
Publication of WO2012112613A3 publication Critical patent/WO2012112613A3/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
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/022—Adjusting aerodynamic properties of the blades
    • F03D7/024—Adjusting aerodynamic properties of the blades of individual blades
    • 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
    • F03D15/00—Transmission of mechanical power
    • F03D15/05—Transmission of mechanical power using hollow exhausting blades
    • 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
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/022—Adjusting aerodynamic properties of the blades
    • 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
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/022—Adjusting aerodynamic properties of the blades
    • F03D7/0236—Adjusting aerodynamic properties of the blades by changing the active surface of the wind engaging parts, e.g. reefing or furling
    • 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
    • F05B2240/20—Rotors
    • F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • 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
    • F05B2260/00—Function
    • F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05B2260/79—Bearing, support or actuation arrangements therefor
    • 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
    • F05B2270/00—Control
    • F05B2270/60—Control system actuates through
    • F05B2270/605—Control system actuates through pneumatic actuators
    • 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

Abstract

A blade for use in a wind turbine comprises a pressure side and suction side meeting at a trailing edge and leading edge, the pressure side having a pressure side surface and the suction side having a suction side surface, the pressure side surface and suction side surface for providing lift to the turbine blade upon the flow of air from the leading edge to the trailing edge and over the pressure side and suction side surfaces, the pressure side and suction side extending from a root portion to a tip portion of the turbine blade. In some situations, the root portion is non- aerodynamic. The aerodynamics of such a blade is improved with the aid of pneumatic blowing through one or more blown passages for providing pressurized air (or other fluid) to a suction side and/or pressure side of the blade.
PCT/US2012/025127 2011-02-14 2012-02-14 Turbine blades, systems and methods WO2012112613A2 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US201161442761P 2011-02-14 2011-02-14
US61/442,761 2011-02-14
US201161453941P 2011-03-17 2011-03-17
US61/453,941 2011-03-17
US13/185,459 2011-07-18
US13/185,459 US20120020803A1 (en) 2011-02-14 2011-07-18 Turbine blades, systems and methods

Publications (2)

Publication Number Publication Date
WO2012112613A2 WO2012112613A2 (en) 2012-08-23
WO2012112613A3 true WO2012112613A3 (en) 2012-11-22

Family

ID=45493773

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2012/025127 WO2012112613A2 (en) 2011-02-14 2012-02-14 Turbine blades, systems and methods

Country Status (2)

Country Link
US (1) US20120020803A1 (en)
WO (1) WO2012112613A2 (en)

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JP5470626B2 (en) * 2009-01-30 2014-04-16 国立大学法人九州工業大学 Wind power generator
US20120024622A1 (en) * 2010-08-02 2012-02-02 Yen Tuan Gaseous-fluid supply system for noise abatement application
GB201109412D0 (en) * 2011-06-03 2011-07-20 Blade Dynamics Ltd A wind turbine rotor
US9133819B2 (en) 2011-07-18 2015-09-15 Kohana Technologies Inc. Turbine blades and systems with forward blowing slots
CO6860304A1 (en) * 2012-07-13 2014-02-10 Univ Pontificia Bolivariana Geometric description rotor blade
JP5886475B2 (en) * 2014-03-04 2016-03-16 中国電力株式会社 Wind power generator
US9845684B2 (en) * 2014-11-25 2017-12-19 Pratt & Whitney Canada Corp. Airfoil with stepped spanwise thickness distribution
CA3015687C (en) * 2015-02-25 2024-02-27 Ryan Church Structure adapted to traverse a fluid environment and method of retrofitting structure adapted to traverse a fluid environment
EP3545189B1 (en) * 2016-11-24 2021-03-24 Vestas Wind Systems A/S Improvements relating to wind turbines having blades equipped with boundary layer control system
DE102017124861A1 (en) * 2017-10-24 2019-04-25 Wobben Properties Gmbh Rotor blade of a wind turbine and method for its design
US20200088161A1 (en) * 2018-09-17 2020-03-19 General Electric Company Wind Turbine Rotor Blade Assembly for Reduced Noise
US11781522B2 (en) 2018-09-17 2023-10-10 General Electric Company Wind turbine rotor blade assembly for reduced noise
CN109653942B (en) * 2019-01-28 2020-06-12 河海大学 Ventilation vortex reduction device and wind turbine blade with same inside
CN110566400B (en) * 2019-09-10 2021-05-14 河南理工大学 Horizontal shaft wind turbine blade
CN111734577B (en) * 2020-07-07 2023-05-02 中国华能集团有限公司广西分公司 Slit type wind turbine blade device and slit method
WO2022188936A1 (en) * 2021-03-10 2022-09-15 Vestas Wind Systems A/S A wind turbine blade

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US6940185B2 (en) * 2003-04-10 2005-09-06 Advantek Llc Advanced aerodynamic control system for a high output wind turbine
US20090028705A1 (en) * 2007-06-22 2009-01-29 Gamesa Innovation & Technology, S.L. Wind turbine blade with deflectable flaps
US20100014970A1 (en) * 2007-01-05 2010-01-21 Lm Glasfiber A/S Wind turbine blade with lift-regulating means in form of slots or holes
US20100266382A1 (en) * 2007-10-22 2010-10-21 Actiflow B.V. Wind turbine with boundary layer control

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US2464726A (en) * 1944-09-18 1949-03-15 Edward A Stalker Rotary wing aircraft
US4316698A (en) * 1979-08-23 1982-02-23 Bertoia Val O Fluid-driven turbine with speed regulation
US4474536A (en) * 1980-04-09 1984-10-02 Gougeon Brothers, Inc. Wind turbine blade joint assembly and method of making wind turbine blades
US4557666A (en) * 1983-09-29 1985-12-10 The Boeing Company Wind turbine rotor
US6132181A (en) * 1995-07-31 2000-10-17 Mccabe; Francis J. Windmill structures and systems
US5791601A (en) * 1995-08-22 1998-08-11 Dancila; D. Stefan Apparatus and method for aerodynamic blowing control using smart materials
US6142425A (en) * 1995-08-22 2000-11-07 Georgia Institute Of Technology Apparatus and method for aerodynamic blowing control using smart materials
US6203269B1 (en) * 1999-02-25 2001-03-20 United Technologies Corporation Centrifugal air flow control
US7387491B2 (en) * 2004-12-23 2008-06-17 General Electric Company Active flow modifications on wind turbine blades
US20070231151A1 (en) * 2005-10-10 2007-10-04 General Electric Company Active flow control for wind turbine blades
WO2007065434A1 (en) * 2005-12-05 2007-06-14 Lm Glasfiber A/S Blade for a wind turbine rotor
WO2008070917A1 (en) * 2006-12-13 2008-06-19 Aerogenesis Australia Pty Ltd Wind turbine & wind turbine blade
NL2000819C2 (en) * 2007-08-17 2009-02-18 Stichting Energie Wind turbine and rotor blade.
US8186960B2 (en) * 2008-04-15 2012-05-29 Frontier Pro Services, Llc Repair of rotor blade roots
US9239039B2 (en) * 2008-10-27 2016-01-19 General Electric Company Active circulation control of aerodynamic structures
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Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6940185B2 (en) * 2003-04-10 2005-09-06 Advantek Llc Advanced aerodynamic control system for a high output wind turbine
US20100014970A1 (en) * 2007-01-05 2010-01-21 Lm Glasfiber A/S Wind turbine blade with lift-regulating means in form of slots or holes
US20090028705A1 (en) * 2007-06-22 2009-01-29 Gamesa Innovation & Technology, S.L. Wind turbine blade with deflectable flaps
US20100266382A1 (en) * 2007-10-22 2010-10-21 Actiflow B.V. Wind turbine with boundary layer control

Also Published As

Publication number Publication date
US20120020803A1 (en) 2012-01-26
WO2012112613A2 (en) 2012-08-23

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