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DK114190A - PROCEDURE AND MEASURES FOR IMPROVING A WIND MILL - Google Patents

PROCEDURE AND MEASURES FOR IMPROVING A WIND MILL Download PDF

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Publication number
DK114190A
DK114190A DK114190A DK114190A DK114190A DK 114190 A DK114190 A DK 114190A DK 114190 A DK114190 A DK 114190A DK 114190 A DK114190 A DK 114190A DK 114190 A DK114190 A DK 114190A
Authority
DK
Denmark
Prior art keywords
sail
windmill
cap
shaped
improving
Prior art date
Application number
DK114190A
Other languages
Danish (da)
Other versions
DK164294C (en
DK164294B (en
DK114190D0 (en
Inventor
Henrik Stiesdal
Original Assignee
Danregn Vindkraft As
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 Danregn Vindkraft As filed Critical Danregn Vindkraft As
Priority to DK114190A priority Critical patent/DK164294C/en
Publication of DK114190D0 publication Critical patent/DK114190D0/en
Publication of DK114190A publication Critical patent/DK114190A/en
Publication of DK164294B publication Critical patent/DK164294B/en
Application granted granted Critical
Publication of DK164294C publication Critical patent/DK164294C/en

Links

Classifications

    • 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

  • Wind Motors (AREA)

Abstract

The invention relates to a method for improving the efficiency of an existing windmill sail and reducing its noise emission during operation and a member for use in implementing the method. This is achieved by arranging a cap 3 on at least the radially outermost end 2 of the windmill sail 1, in which way the aerodynamic shape of the latter is changed to correspond to the most recent results of windmill research without having to scrap the existing windmill sail 1. It is advantageous in particular to equip that end of the cap 3 which is radially outermost in the use position with a drop-shaped or torpedo-shaped part 9, the longitudinal direction extends essentially in the plane of rotation of the sail, this part 9 serving to relieve edge eddies at the sail tip. The cap 3, especially when provided with a drop-shaped or torpedo-shaped part 9, makes it possible to achieve a considerable improvement in the efficiency of the windmill and a not inconsiderable reduction in the noise emission of the sail. <IMAGE>
DK114190A 1990-05-08 1990-05-08 PROCEDURE AND BODY TO CHANGE THE FORM OF AN EXISTING WINDOW EXPERIENCE DK164294C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK114190A DK164294C (en) 1990-05-08 1990-05-08 PROCEDURE AND BODY TO CHANGE THE FORM OF AN EXISTING WINDOW EXPERIENCE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK114190A DK164294C (en) 1990-05-08 1990-05-08 PROCEDURE AND BODY TO CHANGE THE FORM OF AN EXISTING WINDOW EXPERIENCE
DK114190 1990-05-08

Publications (4)

Publication Number Publication Date
DK114190D0 DK114190D0 (en) 1990-05-08
DK114190A true DK114190A (en) 1991-11-09
DK164294B DK164294B (en) 1992-06-01
DK164294C DK164294C (en) 1992-10-19

Family

ID=8101479

Family Applications (1)

Application Number Title Priority Date Filing Date
DK114190A DK164294C (en) 1990-05-08 1990-05-08 PROCEDURE AND BODY TO CHANGE THE FORM OF AN EXISTING WINDOW EXPERIENCE

Country Status (1)

Country Link
DK (1) DK164294C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4680091A (en) * 1985-03-26 1987-07-14 Zlehit Pri Ban Apparatus for the continuous vacuum cleaning of oil

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE272172T1 (en) * 1999-01-06 2004-08-15 Water Power Ind As TURBINE OPERATED BY A FLUID MEDIUM
US11248588B2 (en) 2016-07-29 2022-02-15 Vestas Wind Systems A/S Wind turbine blade having a lightning tip receptor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4680091A (en) * 1985-03-26 1987-07-14 Zlehit Pri Ban Apparatus for the continuous vacuum cleaning of oil

Also Published As

Publication number Publication date
DK164294C (en) 1992-10-19
DK164294B (en) 1992-06-01
DK114190D0 (en) 1990-05-08

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Legal Events

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PUP Patent expired