E. Eswanto - Mechanical Engineering, Universitas Negeri Medan, Jl. Willem Iskandar/Pasar V, Medan, Indonesia
H. Hasan - Engineering Automotiv Education, Universitas Negeri Medan, Jl. Willem Iskandar/Pasar V, Medan, Indonesia
Z. M. Razlan - School of Mechatronic Engineering, University Malaysia Perlis, Pauh Putra Campus, Arau, Perlis, Malaysia

The use of energy, especially for daily needs, is important. Pico hydro is an environmentally friendly power plant model that can take advantage of low flow rates and generate electricity below ۱ kW. The purpose of this research is to obtain the best performance of pico hydro with a screw-shaped turbine model or what is called  Archimedes Screw Turbine. The research method was carried out experimentally by adjusting the angle of the Archimedes screw turbine shaft, namely ۳۰°, ۴۵° and ۶۰°. Observations at a discharge of ۱۵ m۳/h with an angle of ۳۰° provide information that the screw turbine power obtained is ۱۱۱.۴ W with an efficiency of ۵۷%. For an angle of ۴۵° the power is ۱۶۵.۷ W and an efficiency of ۷۷% while at an angle of ۶۰° it produces ۱۸۶ W of power with an efficiency of ۸۷%. The results of this analysis prove that the pico-hydro model with a screw turbine by adjusting the angle variation on the turbine shaft gives the conclusion that the greater the given angle is, the greater the obtained performance will be, in terms of power and efficiency.

Pico hydro, Screw Turbine, Shaft Angle, effeciency, Renewable Energy