Studi Eksperimental Pengaruh Laju Aliran Volume Internal Dan Sudut Kemiringan Terhadap Efisiensi Turbin Screw 1 Sudu

Abstract

One of the alternative energies of the Piko Hydro Power Plant (PLTPH) and a source of electricity that is rarely used but has the potential is the internal flow (Internal Flow) in pipes that drain water from tall building tanks in Indonesia. Turbine screw can take advantage of the potential flow velocity with a certain head (height) and discharge which can be converted into electrical energy through rotation and torque. In order for the optimal efficiency of the screw turbine, an experimental study will be carried out, besides the effect of the volume flow rate and the height of the water drop on rotation becomes a variable that can be adjusted to see the performance of the screw turbine. In this study, screw turbine variations were carried out with a pitch distance of 1Ro and 1.5 Ro, volume flow rate (Q) between 10 lpm to 30 lpm, and the turbine screw tilt angle between 20-30 which was monitored by a Rotameter. The flow is sourced from a 30 lpm Submersible Pump and is regulated using the bypass flow before entering the Screw Turbine. The turbine screw rotates due to the flow of water hitting the blades and the rotation can be measured using a tachometer. After data collection, the highest efficiency is obtained for screws with a pitch distance of 1Ro with a tilt angle of 20 ° with a discharge of 30 lpm of 28.89%.