Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
STRUCTURAL DESIGN OF AN UNDERGROUND HERMETIC AND PRESSURIZED SUBSTATION FOR TRANSFORMING ELECTRIC ENERGY
Submission Author:
Pedro Pio Rosa Nishida , MG , Brazil
Co-Authors:
Pedro Pio Rosa Nishida, Arthur Antunes, Ivan Nunes Santos, Julliano Henrique Santos de Faria, Luís Manoel de Paiva Souza
Presenter: Luís Manoel de Paiva Souza
doi://10.26678/ABCM.COBEM2023.COB2023-2061
Abstract
This work proposes the use of computational thermo-fluid simulations to estimate the psychometric conditions of the indoor air of a modular and hermetic substation of electrical energy transformation. The design of the substation foresees the installation of an external auxiliary operational module, located at ground level, which has a refrigeration system (Chiller) able to guarantee safety conditions for the operation of the 1000 kVA power transformer, located inside the underground substation. The analyzes were performed at the computational software ANSYS®, the simulations of thermo-fluid and electromagnetic problems were made simultaneously. As results, the thermal profile of the substation's indoor air was estimated for two cooling strategies. The most suitable scenario has a refrigeration system with three fan coils units; at this condition the air temperature presented values below 40 °C in the critical regions. Parallel to the main objective, computational structural simulations of the metallic structure were performed and the main parameters as equivalent tensions of Von-Mises, total deformation and buckling were estimated. The conception of the idea of this underground hermetic substation is recent and the patent application is already regularized in the INPI (National Institute of Industrial Property of Brazil).
Keywords
underground substation, Computational Simulations, Structure
