Open AccessAnálise da potência mecânica de rotores de Savonius de mesma razão de aspecto
Author(s) -
Felipe Augusto Lustosa Meireles Freitas,
Ronaldo Barcelos e Silva,
Leonardo da Rosa Schmidt,
Silvana Maldaner,
Lucinéia Fabris
Publication year - 2020
Publication title -
ciência e natura
Language(s) - English
Resource type - Journals
eISSN - 2179-460X
pISSN - 0100-8307
DOI - 10.5902/2179460x40635
Subject(s) - rotor (electric) , turbine , torque , physics , rotation (mathematics) , rotational speed , wind power , work (physics) , mechanics , marine engineering , engineering , mathematics , geometry , electrical engineering , thermodynamics , classical mechanics , quantum mechanics
An experimental performance study of Savonius small rotors is performed in this work. Two Savonius prototypes, two blades and the same aspect ratio, were constructed from vinyl polychloride and use different air flow. Experimental tests allowed the rotation speed of each rotor to be determined for different air flows. It is important to note that the average angular velocity of the smaller rotor is approximately fifty percent higher than the larger rotor. At the same time, the absorption torque on the rotor shaft was measured and the mechanical power of each Savonius wind turbine prototype was estimated. The main result was that wind turbines of the same aspect ratio have different performances.