Performance Analysis of Micro Hydro Power Plants Using a Pelton Turbine with Two Nozzle Variations

This research begins with the design, assembly, operation and testing stages of the plant. The type of turbine being tested is a vertical thrust pelton turbine with a variation of 2 nozzles. The purpose of this study was to find the effect of the position of the two angles and the diameter of the nozzle on the water discharge. The steps taken in this test are that the 1st nozzle is placed at an angle position of 00, and the 2nd nozzle is varied at the angle position of 150, 300 and 450, and also with variations in the diameter of the nozzle of 0.5 cm, 0.75 cm, and 0.9 cm to determine the turbine performance. And looking for the value of turbine efficiency, system efficiency and generator efficiency. The results showed that the maximum input power value in this study was 14.40 Watt. The maximum torque value occurs at an angle of 450 with a nozzle diameter of 0.75 cm by 33.78 kg.mm, the maximum turbine power occurs at an angle of 450 with a nozzle diameter of 0.5 cm at 4.52 Watt, the maximum power of the electric generator occurs at an angle of 450 with a nozzle diameter of 0.5 cm of 1.25 Watt. The maximum turbine efficiency occurs at an angle of 450 with a nozzle diameter of 0.75 of 99.98%. The maximum system efficiency occurs at an angle of 450 with a nozzle diameter of 0.9 cm by 15.12%. The maximum efficiency of the electric generator occurs at an angle of 450 with a nozzle diameter of 0.9 cm for 97.99%.