Abstract
Electrical energy has a very important role in human life, but the electricity supply still needs to meet society’s needs fully. Many potential energy resources can be converted into electrical energy. One of the potential energy resources is the flow of water, which can be used for micro-hydro power plants in remote areas. This paper presents the results of an analysis of a prototype Micro Hydro Power Plant (MHPP) using a 3-blade turbine with a gearbox ratio of 2.8:1. The purpose of the analysis is to determine the greatest value of voltage, current, power, rpm, torque, and efficiency based on variations in the angle of the turbine tilt of 20°, 25°, 30°, and 35° at a water debit of 2.91 l/s and a generator in the form of BLDC 3 phase. The measurement results and data analysis found that the turbine tilt angle of 20° produced the greatest voltage, rpm, torque, and efficiency values. This is because the increase in the angle of inclination of the turbine results in an addition to the volume of the bucket so that the speed of the water flow in the turbine increases. As a result of the addition of this water flow, the turbine becomes heavier to rotate so that the efficiency value decreases.
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