Avaliação do potencial do vento para a produção da energia eléctrica no distrito de Xai-Xai, entre 2007-2017

Abstract

The use and exploitation of electrical energy in Mozambique and in the Xai-Xai district in particular, tends to grow in such a way that various sources of its generation gain space, such as wind energy. With this, various technologies and methodologies are implemented for the better use of the various energy resources, including wind, for energy generation. Therefore, this work aims to evaluate the potential of wind for the production of electrical energy in the Xai-Xai district in order to contribute to the identification of alternative, environmentally friendly systems for the generation and supply of electrical energy. This evaluation consists of determining the predominant direction and average wind speed throughout the year with the help of the wind rose and graphs that best describe the trends in speed and wind potential. The results indicate a predominance of winds from the southern quadrant, and through the Weibull distribution, wind intensities with a higher probability of occurrence were determined in the speed class, approximately between 9.0 and 15.0 m/s above the average. The district has an average wind speed of about 8.76 m/s with a standard deviation of 1.90 m/s, as well as an average available wind potential of about 2168.29 KW and an average wind potential of 1224.85 KW at a height of 100 m above the earth's surface, assuming a horizontal axis wind turbine with a diameter of 80 m. Therefore, it can be stated with the results obtained in this study that there is favorable wind potential for the generation of electricity and for its quantitative and qualitative distribution to consumers in the district of Xai-Xai(TRADUÇÃO NOSSA)