Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
DEVELOPMENT AND NUMERICAL ANALYSIS OF A SIMPLIFIED AERODYNAMIC PAD FOR HORIZONTAL LOW-POWER WIND TURBINES WITH IMPLEMENTATION OF AERODYNAMIC TECHNIQUES
Submission Author:
João Rodrigues , PB , Brazil
Co-Authors:
ALVARO ROCHA, André Oliveira, João Rodrigues, Raimundo Duarte
Presenter: Raimundo Duarte
doi://10.26678/ABCM.COBEM2019.COB2019-1724
Abstract
The increase in energy demand coupled with the possibility of reducing the supply of conventional fuels and the growing concern with the preservation of the environment has been encouraging the scientific community to research and develop new technologies applied to alternative sources of less polluting energy. The aerodynamic profile type is one of the most important design parameters in wind turbine analysis. The influence of the profile on the power coefficient of the wind turbine is determined by the so-called aerodynamic performance L / D, which is the quotient between the drag and drag force. This dependence is clearly seen when the wind turbine is lost, since the L / D ratio is drastically reduced and the power coefficient is similarly reduced. The improvement of the power coefficient of aerodynamic blades is based on the use of aerodynamic techniques that promote modifications and insertions of wing devices, allowing a new configuration to the original geometry. Improvements in aerodynamic performance achieved improved final performance of 7.0% in torque and 6.8% in power for an angle of attack of 6 ° on blades of small wind turbines of the Eppler family, the E-387 through use of aerodynamic techniques.
Keywords
eronautical devices of high capacity, wind energy, energy demand, Aerodynamic performance
