PENGARUH JARAK CELAH BLADE TANDEM DENGAN BLADE UTAMA TERHADAP KARAKTERISTIK AERODINAMIS TURBIN ANGIN SAVONIUS

Abstract

With sufficient wind potential in Indonesia, it can be used for wind turbine applications. Therefore, the Savonius wind turbine needs to be further developed in order to get a Savonius wind turbine model that produces optimal power efficiency. The purpose of this research; (1) to determine the correct size of the tandem blade gap with the main blade, (2) to determine the effect of the tandem blade clearance with the main blade on the power and efficiency of the Savonius wind turbine model. The method used is an experimental method with the object of a Savonius type wind turbine (two blades) one level with variations in the distance of the tandem blade gap with the main blade. The method of data collection is assembling a wind turbine model with a blade gap distance that will be studied at each level of wind speed and loading. In this experiment the researchers used variations in the tandem blade gap distance with the main blade with variations in the distance of 105mm, 110mm, 115mm and 120mm. The results of the study prove that the effect of the most optimal blade gap is in the variation of 105mm with a power of 0.8937 Watt and an efficiency value of 9.745% at a wind speed of 5.5 m/s.

 Keywords: Savonius wind turbine, Vertical, Tandem Blade, Gap distance between blades.