Simulação da explosão de transformadores em usinas hidrelétricas via fluidodinâmica computacional

Abstract

Transformers are components subject to explode due to short circuits causing great damage mainly in hydroelectric where these are more powerful. Due to this reason, this work aims to simulate this phenomenon by carrying out structural analyzes on explosion protection barriers, blast walls. In the course of this paper, it is sought to understand how the transformers work and the great danger involving the collapse of this component, observe the various phenomena behind explosions and study the computational fluid dynamics that is an efficient mechanism in the simulation of these phenomena. With this knowledge, a hypothetical situation is idealized in which a medium-sized transformer explodes, the simulation is performed in the Ansys Autodyn software by adding pressure sensors in five different places of the barrier, discovering the pressure variation with the time of each point, adopting the greater pressure in every wall is made structural analysis of the blast wall, with the data of this analysis can be sized such structures to support such efforts, therefore avoiding exorbitant damages and even saving lives, in short, this work aims to analyze structurally a barrier against explosions of transformers.