Development of Savonius Type Wind Turbine Model as A Source of Renewable Electrical Energy

Wind turbines can be used as a renewable energy resource, especially in remote areas and outer islands where there is no electricity. Based on the calculations that have been carried out, it is found that the dimensions of the wind turbine model used in this research are a turbine height of 1 meter with a diameter of 0.5 meters. Meanwhile, the dimensions of the shaft used are 20mm. Model testing has been carried out in Juanda Surabaya, it is known that the generator power produced increases along with increasing wind speed which is also influenced by the rotation of the wind turbine. In the results of this research, the largest generator power was produced at a wind speed of 4.8 ms^-1, which produced a generator power of 12.6 watts. Meanwhile, the lowest power is 0 watts because a wind speed of 0.4 m/s is not able to rotate the wind turbine. From the data collection results, it was also found that the SCC could only charge the battery if the minimum voltage reached 13 volts. So the new SCC can charge the battery at a wind speed of 3.7 m/s with a voltage output of 13.1 volts and a current strength of 0.5 amperes. This research will use a Savonius wind turbine with 2 rotor blades with dimensions of 1 meter high and 0.5 meter diameter. The research results show that power is obtained at a generator voltage starting from 13.1 volts which produces a current strength of 0.7 amperes. It is at this voltage that the new Solar/Wind Charge Control can charge the battery.