Abstract
ABSTRACT Wind power plants produce energy by utilising the kinetic energy available from wind. Turbine blades undergo millions of revolution during lifetime and subjected to wear and tear due to unsteady aerodynamic forces. In this work, steady-state blade element momentum computations were performed for horizontal axis 2.1 MW wind turbine to evaluate aerodynamic loads and performance. Axial and tangential loads along the blade span were found to increase near the outboard stations of blade but reduced towards tip. Turbine performance parameters viz. thrust and torque coefficients for tip speed ratio range of 5.1–9.5 showed that maximum values are found as 0.95, 0.98 and 0.12, 0.18 for 00 and 100 yaw angles and agreed well with SCADA data used for validation.
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