The Effect Variation Arch of Rotor Blade On The Performance Of Kinetic Turbine

Energy needs in Indonesia are currently still dominated by fossil fuel-based energy, such as petroleum and coal. Therefore, it is necessary to develop alternative energy sources that can replace fossil energy sources with renewable energy such as water energy as electricity generation. The purpose of this study is to determine the effect of rotor blade curvature variations on the performance of kinetic turbines. The kinetic turbine used has three variations of rotor blade curvature which are 40, 50 and 60 mm with four variations of water flow velocity namely 1.5 2, 2.5, 3, 3.5 m / s. This research was conducted with real experimental methods at a laboratory scale. The results showed that there was an increase in performance when there were variations in rotor blade curvature. The 60 mm rotor blade curvature has the highest efficiency value of 23.73% then the 50 mm rotor blade curvature has an efficiency value of 18.88% and the lowest efficiency value occurs at the 40 mm rotor blade curvature.