Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
DEVELOPMENT OF A SYSTEM FOR THE CHARACTERIZATION OF SMALL VERTICAL AXIS WIND TURBINES
Submission Author:
Gunther Barbosa , SP
Co-Authors:
Gunther Barbosa, Mozart Azevedo Portilho Pinheiro, Julio Texeira, João Vicente Akwa
Presenter: Gunther Barbosa
doi://10.26678/ABCM.COBEM2019.COB2019-0600
Abstract
In this work, a small aerodynamic channel was developed to test reduced models of vertical axis wind turbines. A model of the Savonius turbine was built in 3D printer and had its torque and power measured during operation at varying wind and angular velocities. For measurements, a Foucault brake and a device for torque measurement were also developed. The maximum power coefficient CP obtained after the blockage effect correction is 0.107, which occurs in tip speed ratio 0.707. At the optimum performance point, the torque coefficient CT is 0.152, while the maximum torque coefficient is 0.217 in the tip speed ratio 0.354. The obtained results are in accordance with the ranges of values obtained in other studies for this type of device. The system can be used in the future to test different configurations of small vertical wind turbines with low cost and space saving.
Keywords
: aerodynamic channel, Savonius turbine, ; measurements, operation, performance curves
