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Power performance of canted blades for a vertical axis wind turbine
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10.1063/1.3549153
/content/aip/journal/jrse/3/1/10.1063/1.3549153
http://aip.metastore.ingenta.com/content/aip/journal/jrse/3/1/10.1063/1.3549153

Figures

Image of FIG. 1.
FIG. 1.

Turbine with canted blades installed. The cant angle is 40° from vertical.

Image of FIG. 2.
FIG. 2.

Radius, chord, and local solidity variations of the canted blades over the entire turbine.

Image of FIG. 3.
FIG. 3.

Top view of the turbine with canted blades showing blades wrapped around the turbine at about 270°.

Image of FIG. 4.
FIG. 4.

Canted blade and pitch wedge connected to strut. Pitch was changed by replacing the pitch wedge between tests.

Image of FIG. 5.
FIG. 5.

(a) Blade fences installed on both sides of the canted blade and (b) section view of installed blade fence.

Image of FIG. 6.
FIG. 6.

Schematic representation of installation locations for blade fences. Fences were installed in multiples of either two or five fences, located on either only the inside (nearest the shaft) of the blade (upwind suction side) or on both the inside and outside of the blade. The solid lines indicate locations for the two- and four-fence cases whereas the solid and dashed lines together indicate the locations for the five- and ten-fence cases.

Image of FIG. 7.
FIG. 7.

Power coefficient curves for canted blades showing the effect of pitch. Wind speed is 8 m/s for all cases.

Image of FIG. 8.
FIG. 8.

Power coefficient curves for canted blades showing the effect of wind speed. Pitch is −3.5° for all cases.

Image of FIG. 9.
FIG. 9.

Power coefficient curves for straight and canted blades at −3.5° pitch. Wind speed is 9 m/s for canted blades and 10 m/s for straight blades.

Image of FIG. 10.
FIG. 10.

Power coefficient curves for canted blades showing the effect of fences. Wind speed is 8 m/s and pitch is −3.5° for all cases.

Image of FIG. 11.
FIG. 11.

Power coefficient curves for the canted blades showing the effect of blade fences. Wind speed is 6 m/s and pitch is −3.5° for all cases.

Image of FIG. 12.
FIG. 12.

Power coefficient curves for the straight blades showing the effect of blade fences. Pitch is −3.5° for all cases.

Tables

Generic image for table
Table I.

Blade fence coordinates.

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/content/aip/journal/jrse/3/1/10.1063/1.3549153
2011-02-22
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Power performance of canted blades for a vertical axis wind turbine
http://aip.metastore.ingenta.com/content/aip/journal/jrse/3/1/10.1063/1.3549153
10.1063/1.3549153
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