Analysis of Blade Quantity Variations on Horizontal Axis Wind Turbine Type Taperless Airfoil SG6043 Using Blade Element Momentum (BEM)

Abstract

The design of taperless blades using the SG6043 Airfoil with different blade quantities through BEM simulation method is expected to serve as a reference for determining the design that yields the best operational efficiency. Simulation results show that the highest Cp value for the Taperless blade design is achieved with a variation of 3 wind turbine blades, resulting in a Cp value of 0.45 in the BEM simulation. The highest Cp value for the Taperless blade design with 4 wind turbine blades is 0.48 in the BEM simulation. Meanwhile, the highest Cp value for the Taperless blade design with 5 wind turbine blades is 0.47 in the BEM simulation. For low TSR values within the range of 1-4, turbines with 5 blades perform the best among various blade quantity variations, resulting in the highest Cp value. On the other hand, for high TSR values within the range of 5-10, turbines with the fewest blades, specifically 3 blades, achieve the highest Cp value.