The Study of the Savonius Wind Turbine Blade Performance Integrated on the Doom Roof Type Building

Abstract

The wind turbine, a high potential renewable energy that available install directly in the location of energy demand.it can reduce energy loss due to the transmission. Installation of the wind turbine integrated with a building has a significant problem due to the efficiency and noise. In the urban area, the high building and particular roof design can be amplified the wind speed. In present research aim to investigate Savonius wind turbine with addition slotted blade, that suitable integrated with the doom roof type building. The research was conducted by an experiment method in an open type wind tunnel, and the best variable of the experiment becomes the input of Computational Fluid Dynamic (CFD) simulation, the Savonius wind turbine integrated on the doom roof type. The experimental variables are slotted angle blade 5°, 10°, and 15° degree, and wind speeds are arranged 3 m/s to 9 m/s. The validation of simulation is observed by comparing with the experimental result. In the simulation, the ratio of the doom geometry is a comparison between diameter to the high of the doom. The doom ratios is 1.5, and the position installation is on the top of the doom. The result found that the highest power coefficient is achieved to 0.291 and the torque coefficient to 0.776 by the 6m/s of wind speed. The slotted angle blade of 5° obtained as the optimum configuration in a low tip speed ratio. The 1.5 doom roof ratio is considered the highest performance of CFD in both of the top and side installation. This experiment result can become a reference to implemented the installation on the doom roof type such as mosque in urban areas with low wind speed.