Influence of end-plate of blade on power coefficient of 3 blades axis wind turbine with 4 bars linkage blade pitch angle adjustable
Keywords:
Vertical axis wind turbine, Low-speed wind turbine, Power coefficient, Rotor solidityAbstract
The objective of this paper was to study of the influence of turbine’s blade end-plate on power coefficient of 3 blades vertical axis wind turbine with 4 bars linkage blade pitch angle adjustable. Experimental conditions were 3 level rotor solidity of turbine 0.30, 0.48 and 0.58, 3 conditions of wind speeds 3.5, 4 and 4.5 m/s and effect of end-plate of turbine’s blade without end. The experiment results showed that the end-plate of blade have influence on the power coefficient of wind turbine. Turbine with end-plate of blade and without end-plate of blade provide the same maximum value of power coefficient. However, Wind turbine with end-plate of blade provide have less the power coefficient than wind turbines without end-plate of blade at RTSR 0.5 - 0.6 for wind speed 3.5 m/s and the wind turbine with end-plate of blade generates higher static torque than wind turbine without end-plate of blade about 1.11, 1.15 and 1.23 at rotor solidity as 0.30, 0.48 and 0.58 respectively all wind speed.
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