KAJIAN NUMERIK PENGARUH VARIASI PANJANG BUSUR TERHADAP PERFORMA TURBIN ANGIN SAVONIUS PERSAMAAN MYRING n=1 PADA KECEPATAN 6 m/s

Abstract

This study aims to analyze the performance of Savonius Myring n=1 wind turbine with arc length variation using Computational Fluid Dynamics (CFD) method. The focus of the research includes obtaining the values of Coefficient of Torque (CT), Coefficient of Power (CP), as well as visualizing the flow and pressure distribution on the turbine. Geometry variations were carried out by adding and reducing the arc length by 4 cm, and testing was carried out under three wind speed conditions, namely 5 m/s, 6 m/s, and 7 m/s. The analyzed turbine dimensions have a height of 40 cm and a diameter of 40 cm. The simulation results show that the best configuration is obtained in the variation of the arc length addition of 4 cm with a wind speed of 6 m/s, which results in a CT value of 0.1916 and CP of 0.1916. The use of Myring n=1 and arc length variation are proven to contribute to the increase of turbine aerodynamic efficiency.