Retno Wulandari, Solichin, Wahyu Puspa, Rangga Ega Santoso
Indonesia is a tropical country that has an abundant source of wind energy. This potential is generally used to drive wind turbines. However, the electrical energy produced by wind turbines is still low. If it involves the hypothesis that optimal energy is produced from an effective and efficient turbine design, the purpose of this study is the finding of the Savonius wind turbine performance from variations in rotor angle and wind velocity. This study used a quantitative approach using pre and real experimental method with randomized block design type. The implementation of the study was divided into two stages namely pre-experimental test and final experimental test. Variation of the angle used in this study divided into two groups namely group I with 0°, 30°, 60°, 90°and group II with 0°, 20°, 40°, 60°, 80°. The variations of winds speed used in this study are 3, 5, 7, and 11 (m/s). The results showed that the performance of this modified Savonius turbine was dependent on the angle position. The top group was the angle position which always showed the performance both in the wind position 5 m/s and 7 m/s and produced the best shaft rotation performance, output power, torque and work efficiency from other angular positions. © 2019 Author(s).
Mechanical Engineering Department, Universitas Negeri Malang, Jl. Semarang No. 5, Lowokwaru, Malang, Jawa Timur, 65145, Indonesia
