DK201270065A - Rotor blade for wind turbine - Google Patents

Rotor blade for wind turbine

Info

Publication number
DK201270065A
DK201270065A DKPA201270065A DKPA201270065A DK201270065A DK 201270065 A DK201270065 A DK 201270065A DK PA201270065 A DKPA201270065 A DK PA201270065A DK PA201270065 A DKPA201270065 A DK PA201270065A DK 201270065 A DK201270065 A DK 201270065A
Authority
DK
Denmark
Prior art keywords
rotor blade
wind turbine
tip
interior
inciudes
Prior art date
Application number
DKPA201270065A
Other languages
Danish (da)
Inventor
Chouhan Rohit
Eswararao V S J Anjuri
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of DK201270065A publication Critical patent/DK201270065A/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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • F03D1/0675—Rotors characterised by their construction elements of the blades
    • 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
    • F05B2260/60—Fluid transfer
    • 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
    • F05B2260/96—Preventing, counteracting or reducing vibration or noise
    • 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

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)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

A rotor blade (16) for a wind turbine (10) and a method for reducing rotor blade (16) noise are disciosed, The rotor blade (16) inciudes a body (20) having exterior surfaces defining a pressure side (22), a suction side (24), a leading edge (26), and a trailing edge (28) extending between a tip (32) and a root (34), the surfaces further defining an interior (40). The rotor blade (16) further inciudes at least one purge conduit (100) defined in the tip (32) and configured for exhausting air (102) from the interior (40) such that the air (102) generally reduces noise at the tip (32).
DKPA201270065A 2011-02-10 2012-02-09 Rotor blade for wind turbine DK201270065A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/024,623 US20110211952A1 (en) 2011-02-10 2011-02-10 Rotor blade for wind turbine

Publications (1)

Publication Number Publication Date
DK201270065A true DK201270065A (en) 2012-08-11

Family

ID=44505362

Family Applications (1)

Application Number Title Priority Date Filing Date
DKPA201270065A DK201270065A (en) 2011-02-10 2012-02-09 Rotor blade for wind turbine

Country Status (4)

Country Link
US (1) US20110211952A1 (en)
CN (1) CN102635494A (en)
DE (1) DE102012101070A1 (en)
DK (1) DK201270065A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102705176A (en) * 2012-05-18 2012-10-03 上海交通大学 Wind turbine blade with embedded diversion pipe capable of controlling tip vortex
CN103410656B (en) * 2013-08-13 2015-07-15 河海大学常州校区 Wind turbine blade with transition delay control on blade root portion
DE102014205016A1 (en) * 2014-03-18 2015-09-24 Senvion Gmbh Noise-reduced rotor blade of a wind energy plant
US9701394B2 (en) * 2015-02-25 2017-07-11 Northrop Grumman Systems Corporation Resonant blades using an aperture for cancellation of propeller generated noise
CN109386425A (en) * 2017-08-09 2019-02-26 新疆工程学院 The pneumatic equipment bladess and wind energy conversion system of a kind of linear micro- cavernous structure of blade inlet edge
CN107387335B (en) * 2017-09-11 2018-10-23 北京金风科创风电设备有限公司 Wind power generation equipment, tower barrel and method for inhibiting tower shadow effect of tower barrel

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3713750A (en) * 1970-12-07 1973-01-30 Us Navy Circulation control rotor system
US3779338A (en) * 1972-01-27 1973-12-18 Bolt Beranek & Newman Method of reducing sound generation in fluid flow systems embodying foil structures and the like
US3936013A (en) * 1973-12-17 1976-02-03 Shao Wen Yuan Vortex control
US5217349A (en) * 1989-08-31 1993-06-08 Technology Integration Incorporated System and method for suppressing noise produced by rotors
US5813625A (en) * 1996-10-09 1998-09-29 Mcdonnell Douglas Helicopter Company Active blowing system for rotorcraft vortex interaction noise reduction
US6948906B2 (en) * 2003-04-02 2005-09-27 University Of Maryland Rotor blade system with reduced blade-vortex interaction noise
US7387491B2 (en) * 2004-12-23 2008-06-17 General Electric Company Active flow modifications on wind turbine blades
US7435057B2 (en) * 2005-07-13 2008-10-14 Jorge Parera Blade for wind turbine
US7354247B2 (en) * 2005-10-27 2008-04-08 General Electric Company Blade for a rotor of a wind energy turbine
CA2674306C (en) * 2007-01-05 2014-05-13 Stefano Bove Wind turbine blade with lift-regulating means in form of slots or holes
US8449255B2 (en) * 2010-03-21 2013-05-28 Btpatent Llc Wind turbine blade system with air passageway
US20110293421A1 (en) * 2010-05-28 2011-12-01 Lockheed Martin Corporation Rotor blade having passive bleed path

Also Published As

Publication number Publication date
DE102012101070A1 (en) 2012-08-16
US20110211952A1 (en) 2011-09-01
CN102635494A (en) 2012-08-15

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Legal Events

Date Code Title Description
PHB Application deemed withdrawn due to non-payment or other reasons

Effective date: 20140228