Experimental Study the Effect of Turbine Distance on Cross Flow Wind Turbine Performance in In-Line Configuration with Counter-Rotating Wind Turbine

Abstract

Indonesia potentially has a wind energy sources that is 950 Megawatt. However, development of wind energy that has been implemented only reached 1.3 Megawatt or 0.13%. One of the studies that is being developed is using cross flow runner since it suitable with the condition in Indonesia, which has low wind speed and can catch wind from all direction. This study focuses on experiment using in-line configuration and expected to minimize reduce of torsion and to know the effect of power characteristic. Considered changes are made on distance between two turbines that is 1.5D; 2D; 2.5D in varied 5 m/s; 6 m/s; 7 m/s of wind speed. The research was carried out by using cross flow wind turbine with 200 mm in diameter and 200 mm in height in the wind tunnel. Based on this study, it can be concluded that the distance of turbine in in-line configuration with counter-rotating cross flow wind turbine affects the torsion and power coefficient.