Análisis dinámico del viento en una edificación para la adecuación de un aerogenerador de eje vertical

Abstract

In response to population growth, a significant increase in the demand for electrical energy has been observed in recent years. However, the capacity of energy derived from fossil fuels to satisfy this demand has been limited. This phenomenon highlights the critical need to explore and adopt more sustainable and efficient energy sources, such as wind energy that is derived from the movement of air, taking advantage of the kinetic force produced by air currents. This energy is generated from a Darrieus type VAWT designed for urban areas that have low wind currents. Computational fluid dynamics (CFD) using the Ansys Fluent software allows simulating the behavior of the wind on the VAWT blades, using the finite element method, as well as the boundary condition variables that are: atmospheric pressure of 0,714 atm, ambient temperature of 21,3°C and wind speed of 3,03 m/s taken through a weather station at strategic points. Analysis of the speed in the area of interest using software reveals a gradient from 5,7 m/s at the inlet of the wind turbine rotor to values between 0,67 and 1,33 m/s at the rear outlet. This behavior demonstrates the efficiency of the system by taking advantage of the loss of wind speed through the rotor to generate moments and, consequently, a mechanical power of 36 W.