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NL9301910A - Windturbine. - Google Patents

Windturbine. Download PDF

Info

Publication number
NL9301910A
NL9301910A NL9301910A NL9301910A NL9301910A NL 9301910 A NL9301910 A NL 9301910A NL 9301910 A NL9301910 A NL 9301910A NL 9301910 A NL9301910 A NL 9301910A NL 9301910 A NL9301910 A NL 9301910A
Authority
NL
Netherlands
Prior art keywords
wind turbine
turbine according
saw
edge
trailing edge
Prior art date
Application number
NL9301910A
Other languages
English (en)
Original Assignee
Stork Prod Eng
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 Stork Prod Eng filed Critical Stork Prod Eng
Priority to NL9301910A priority Critical patent/NL9301910A/nl
Priority to FI944650A priority patent/FI944650A/fi
Priority to NO943757A priority patent/NO943757L/no
Priority to US08/319,107 priority patent/US5533865A/en
Priority to EP94202892A priority patent/EP0652367A1/en
Priority to CN94118644A priority patent/CN1110368A/zh
Publication of NL9301910A publication Critical patent/NL9301910A/nl

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
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • 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
    • F05B2250/00—Geometry
    • F05B2250/10—Geometry two-dimensional
    • F05B2250/18—Geometry two-dimensional patterned
    • F05B2250/183—Geometry two-dimensional patterned zigzag
    • 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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Wind Motors (AREA)

Description

WINDTURBINE
De uitvinding heeft betrekking op een windturbinemet een rotor met een aantal bladen, die elk een voorrand eneen achterrand vertonen.
Een bezwaar van het gebruik van windturbines is dedoor de rotor en meer in het bijzonder de rotorbladen tij¬dens bedrijf veroorzaakte geluidsoverlast.
Het is het doel van de uitvinding deze geluidspro-duktie te verminderen. Dit wordt volgens de uitvindingbereikt doordat de achterrand van elk blad onregelmatiggevormd is. Meer in het bijzonder vertoont de achterrand vanelk blad althans over een deel een zaagtandvorm. Bij voor¬keur is de helling van de zaagtand kleiner dan ongeveer 45°.
Praktijkproeven hebben uitgewezen dat met op dezewijze gevormde bladen een aanzienlijke geluidsreductie wordtbereikt.
De uitvinding wordt aan de hand van de bijgaandetekening nader verduidelijkt.
Zoals gebruikelijk, omvat een windturbine, bij¬voorbeeld voor elektrische energie-opwekking, een mast 1,een rotor 2 en een aantal, in het onderhavige uitvoerings-voorbeeld drie, bladen 3, 4 en 5. De, in rotatierichtinggezien, achterrand van elk blad is volgens de uitvindingonregelmatig gevormd, bijvoorbeeld achterrand 6 van blad 3.De onregelmatige vorm kan een verschillend patroon bezitten.Voorbeelden zijn bijvoorbeeld een sinusvormig patroon en eenzaagtandpatroon. Volgens praktijkproeven levert een zaag-tandpatroon met een hellingshoek van elke tand van minderdan ongeveer 45° de grootste geluidsreductie op.

Claims (5)

1. Windturbine met een rotor met een aantal bla¬den, die elk een voorrand en een achterrand vertonen, methet kenmerk, dat de achterrand onregelmatig gevormd is.
2. Windturbine volgens conclusie 1, met het ken¬merk, dat de achterrand over althans een deel een zaagtand-vorm vertoont.
3. Windturbine volgens conclusie 2, met het ken¬merk, dat zaagtanden ongelijk andere zaagtanden zijn.
4. Windturbine volgens conclusie l, met het ken¬merk, dat het verloop sinusvormig is.
5. Windturbine volgens conclusies 2-3, met hetkenmerk, dat de helling van de zaagtand kleiner dan ongeveer45° is.
NL9301910A 1993-11-04 1993-11-04 Windturbine. NL9301910A (nl)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL9301910A NL9301910A (nl) 1993-11-04 1993-11-04 Windturbine.
FI944650A FI944650A (fi) 1993-11-04 1994-10-05 Tuuliturbiini
NO943757A NO943757L (no) 1993-11-04 1994-10-06 Vindturbin
US08/319,107 US5533865A (en) 1993-11-04 1994-10-06 Wind turbine
EP94202892A EP0652367A1 (en) 1993-11-04 1994-10-06 Noise reduction for wind turbine
CN94118644A CN1110368A (zh) 1993-11-04 1994-10-07 风力涡轮

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9301910A NL9301910A (nl) 1993-11-04 1993-11-04 Windturbine.
NL9301910 1993-11-04

Publications (1)

Publication Number Publication Date
NL9301910A true NL9301910A (nl) 1995-06-01

Family

ID=19863095

Family Applications (1)

Application Number Title Priority Date Filing Date
NL9301910A NL9301910A (nl) 1993-11-04 1993-11-04 Windturbine.

Country Status (6)

Country Link
US (1) US5533865A (nl)
EP (1) EP0652367A1 (nl)
CN (1) CN1110368A (nl)
FI (1) FI944650A (nl)
NL (1) NL9301910A (nl)
NO (1) NO943757L (nl)

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WO2024170631A1 (fr) 2023-02-14 2024-08-22 Zelin Dispositif de reduction du bruit aeroacoustique d'une pale d'un equipement aeraulique et pale d'eolienne equipee d'un tel dispositif de reduction de bruit
FR3145782A1 (fr) 2023-02-14 2024-08-16 Zelin Dispositif de reduction du bruit aeroacoustique d’une pale d’un equipement aeraulique et pale d’eolienne equipee d’un tel dispositif de reduction de bruit
EP4446578A1 (en) * 2023-04-12 2024-10-16 Siemens Gamesa Renewable Energy A/S Trailing-edge add-on
CN116816588A (zh) * 2023-07-25 2023-09-29 三一重能股份有限公司 叶片尾缘结构、风电叶片及风力发电机组

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NO943757D0 (no) 1994-10-06
US5533865A (en) 1996-07-09
NO943757L (no) 1995-05-05
FI944650A0 (fi) 1994-10-05
CN1110368A (zh) 1995-10-18
FI944650A (fi) 1995-05-05
EP0652367A1 (en) 1995-05-10

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