Performance Analysis Vertical-Axis Wind Turbine (VAWT) Turbine Convex Savonius

The bayu Power Plant (wind) is one of the potential renewable energy sources to generate electrical energy in the future. Wind power plants are working systems that change wind energy to rotate the generator to produce electricity. Based on the nature of renewable wind energy and the diminishing supply of fossil energy, research and development on the use of renewable energy must be in accordance with the needs of geographical location. The theme developed is the utilization of wind energy to generate electrical energy with the title "Performance Analysis Vertical-Axis Wind Turbine (VAWT) Turbine Convex Savonius". This research focuses on the renewal of the Savonius turbine design by providing additional convex fields on the outer side of the savonius blade. Tests were carried out by comparing the results of the flat savonius turbine rotation with convex savonius which had 3 variations in convex angles, testing was carried out at identical wind speeds from 5m / s to 10m / s. and the most efficient blade shape is at 30 ° with an output of 63 Rpm.