Performance of Single Screw Archimedes Turbine Using Transmission

Abstract

Micro hydro electricity generation using Archimedes screw turbines has been developed in recent years in countries that have the potential for river flow. This turbine is applied to low water flow conditions and the head is smaller than 10 meter. One type of screw turbine commonly used is a single blade type. However, most of the research is carried out on a laboratory scale. The purpose of this study was to examine the performance of Archimedes single screw turbines using twice reduction gear transmission. The variables measured and observed are the flow rate, turbine rotation, torque and power generated. The test was carried out with two variations of flow discharge, 0.05 m3/s and 0.0375 m3/s. The Archimedes single blade turbine rotation testing defined that the gear transmission able to increase the turbine rotation from 236 rpm to 567.46 rpm. The best turbine performance using gear transmission is obtained at a flow rate of 0.05 m3/s with an acquisition power of 15.38 W and a final rotation of 410.67 rpm.