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Start-up characteristics are important performance of Vertical Axis Wind Turbines (VAWTs). Traditional measurement approach for average start-up torque (AST) has disadvantage of multiple measurements and the results are easy affected by measurement environment. A simplified measurement approach for average start-up torque of VAWTs is proposed. One measurement position is firstly predicted by Computational...
H-type vertical axis wind turbine (VAWT), with higher wind energy utilization, is one of the most common forms of Darrieus-type vertical axis wind turbine. A simplified mathematical modeling analysis is proposed to obtain the performance of H-type VAWT in this research. Blade element momentum theory is used to calculation the power and efficiency of H-type VAWT, and computational fluid dynamics (CFD)...
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