SAVONIUS MICRO WIND TURBINE: A THEORETICAL ANALYSIS

Elson Avallone, Paulo Henrique Palota, Paulo César Mioralli, Pablo Sampaio Gomes Natividade, Jonas Rafael Antonio, José Ferreira da Costa, Sílvio Aparecido Verdério Junior

DOI Number
doi.org/10.2298/FUEE2302219G
First page
227
Last page
238

Abstract


Currently, the energy sector is the main responsible for the emission of carbon dioxide into the atmosphere. Therefore, to reverse this scenario, it is necessary to expand the use of renewable energy sources, such as wind energy. With that, the search for improving efficiency in wind turbines that work with low speed winds, make the Savonius turbine an advantageous option for presenting characteristics of low construction cost. This study aims to theoretically analyze a single model of vertical axis wind micro turbine using artificial wind. The wind power for 2 stages in this project was 0.063 W, as the power variation in relation to rotation is not linear. Another important factor to consider is that the overlap ratio of 30% collaborates a power reduction. Using the mathematical models, some results were theoretically analyzed through the Savonius turbine with central axis. The literature indicates that the most efficient turbine is a two-stage turbine with helical blades and without a central axis.


Keywords

Wind energy, mini wind turbines, Savonius

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