Savonius wind turbine ratios

The new Savonius wind turbine configuration optimizes shaft-vane relationships to enhance efficiency by spacing vanes 3 to 4 times the shaft diameter, achieving over 30% efficiency with a balanced central free space and tip speed ratio.

JP7597401B2Active Publication Date: 2024-12-10ファーブマークダニエル
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Patent Information

Application Number
JP2023062990
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2019-04-30
Filing Date
2023-04-07
Publication Date
2024-12-10
Estimated Expiration
2039-10-30

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Abstract

To provide a Savonius wind turbine capable of obtaining the maximum efficiency.SOLUTION: A diameter axis turbine is a vertical axis turbine and includes two similar blades that have a substantially semi-circular shape in a horizontal plane for any cross-section along the height of the turbine and each have a central shaft in a vertical direction. Concave surfaces of the blades partially face each other, and each has a chord diameter of a distance c indicating the distance of the inner surface of the blade. The blades are disposed at a distance a that linearly passes through a shaft of a diameter sd from the inner endpoint of the semicircle of the first blade to the inner endpoint of the semicircle of the second blade. The location of the inner endpoint faces the opposite blade at a distance less than a half of a chord from the inner endpoint of the opposite blade to the outer endpoint of the opposite blade. The distance a is substantially 3 to 4 times sd.SELECTED DRAWING: Figure 2
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Citation Information

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