Numerical Study of Taper Type Turbine Blade at a 5° Angle

Renewable energy has emerged as a critical solution to the global challenges of climate change and continued reliance on fossil fuels. Wind turbines play an important role in this context as sources of clean energy that can meet electricity needs with minimal environmental impact. With its vast wind potential, Indonesia has a unique opportunity to drive the transition to renewable energy. As a result, a thorough understanding of wind turbine technology and the factors influencing its efficiency is becoming increasingly important. This article uses Q-Blade software to simulate the effect of blade angle on a taper type wind turbine with a 5° angle. The main findings show that the angle of attack has a significant impact on wind turbine performance. According to the dynamic pressure distribution on the airfoil profile, the optimal angle of attack peaks at half chord, resulting in maximum lift. Despite the fact that the power coefficient (Cp) value is slightly lower than the theoretical limit of the Betz principle This turbine can convert approximately 30.7% of the wind's kinetic energy into mechanical power. The findings of this study provide important information for the development of more efficient and sustainable local wind turbine technology in Indonesia, which is consistent with the vision of energy sustainability and Indonesia's role in global renewable energy. Developers can design more efficient wind turbines, reduce global carbon footprints, and support the transition to environmentally friendly renewable energy with a better understanding of angle of attack. This article is an important step toward a cleaner, more sustainable future in energy provision for Indonesians and the rest of the world.