Análise comparativa entre gerador eólico de eixo vertical onshore e offshore utilizando o software QBlade

Abstract

In the pursuit of solutions to the environmental challenges faced today, wind energy has emerged as a prominent renewable energy source. Building upon this problem, the objective of this study is to simulate, analyze, and compare the performance of a vertical-axis wind turbine (VAWT) in three different environments, both onshore and offshore. The chosen baseline model is the Sandia 34 m 500 kW, developed by Sandia National Laboratories, with a projected speed of 12 m/s. The development and simulation are carried out using the Qblade software. This research is motivated by the significant advantages offered by the marine environment compared to the terrestrial environment, such as higher average wind speeds, lower wind turbulence, and the feasibility of utilizing larger rotors without logistics-related challenges or proximity issues to populated areas. This work aims to utilize the XFOIL flow simulation algorithm and the double multiple streamtube (DMS) method to generate and analyze aerodynamic coefficients, torque, and power based on variables like tip speed ratio, wind speed, rotation, among others. The results of this study demonstrate the performance characteristics of the wind turbine in different environments, elucidating the effects of wind profiles in various settings and the effect caused by the ocean surface on energy generation.