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Wind turbine blades with dimples

A wind turbine and blade technology, applied in the field of horizontal axis wind turbine blades, can solve problems such as pressure difference and reduce blade rotation speed, so as to achieve the effect of reducing pressure, reducing negative impact and maximizing income

Inactive Publication Date: 2013-02-06
塞奥佐罗斯·图拉斯 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Windage (resistance) in the horizontal direction acts against the direction of the wind, reducing the rate of rotation of the blades, resulting in a pressure differential

Method used

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  • Wind turbine blades with dimples
  • Wind turbine blades with dimples
  • Wind turbine blades with dimples

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Experimental program
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Effect test

Embodiment Construction

[0013] A method of applying groove arrangement technology on the surface of a wind turbine blade is described with reference to the accompanying drawings. A wind turbine consists of a rotor (1), blades (2), hemispherical grooves (3) and a wind turbine tower (4). The grooves are arranged in rows on the surface of the blade in the highest number and with an ideal effective size according to the surface size of the blade, as close as possible to each other and alternating with each other, resulting in a tangential form.

[0014] As shown in the drawings, only hemispherical grooves of the same size are arranged on the blade surface. However, this does not exclude the implementation of only polygonal grooves (such as hexagonal grooves) arranged on the basis of hemispherical groove arrangement technology, these polygonal grooves are as close as possible to each other, arranged in rows and alternate with each other, resulting in phase Cut in such a way that the surface of the blade ...

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Abstract

Wind turbine blades (2) which are characterised from being equipped with dimples (3) of hemispherical or polygonal shape as many as possible of them and as much as closer one another arranged in rows and alternately between them alongside blade's whole surface. Applying this dimple arrangement technique on blade's surface, a drastic management of specific aerodynamic phenomena contributing to the most possible wind laminar flow and steady blade rotation maximizing quality, reliability, economically and noiseless wind turbine operation which because of diffusion at a significant degree of the two side pressure difference, a speedier rotation is succeeded (more rounds per minute) finally maximizing electric energy production.

Description

technical field [0001] The present invention relates to a technique applied to horizontal axis wind turbine blades arranged on a rotor on a wind turbine tower. Background technique [0002] Wind turbines with blades of this type are known, which are made of known materials such as light plastic reinforced with glass, aluminium, thin wooden layers, and the like. The back of the blade is more curved than the front. In addition to length, which has a critical impact on the performance of a wind turbine, other factors such as width, thickness, and weight also have a role in maximizing the rotation that is characterized by a balance between aerodynamic design demands and durability. influences. [0003] Wind turbine blades are designed and manufactured in a specific way and are arranged on the rotor to maximize the energy of the wind passing through them that turns the blades. Through the rotation of the blades on the shaft, the kinetic energy (rotational energy) is converted ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/06
CPCF05B2250/241F05B2240/32F05B2250/28F03D1/0633Y02E10/721Y02E10/72F03D1/065
Inventor 塞奥佐罗斯·图拉斯埃曼努埃尔·米哈利斯
Owner 塞奥佐罗斯·图拉斯
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