AÇÕES DE RETROFIT PARA A OBTENÇÃO DO NÍVEL “A” DE EFICIÊNCIA ENERGÉTICA EM EDIFICAÇÕES MILITARES

Abstract

The global energy matrix is composed, for the most part, of non-renewable fossil fuels sources such as oil, coal and natural gas, which still constitute a large part of the energy used worldwide. With the growing demand for energy use worldwide, as important as the use of new energy sources, is the rational use of energy for the development of residential, commercial and industrial activities, applying the concepts of energy efficiency and sustainability. The Normative Instruction nº 02/2014 - SLTI, which disposes on rules for the acquisition or rental of consumer machines and devices by the direct, autarchic and foundational Federal Public Administration, and use of the National Energy Conservation Label (ENCE) in the projects and respective new federal public buildings or that receive retrofit, imposes changes in the projects of military buildings. This new conception of projects and execution of works, in accordance with the above-mentioned legislation, will not be applied only in the Midwest Region, but throughout the national territory. The proposed theme seeks to place greater emphasis to a work that will serve as a model for other new works of the same nature, as well as for the correct adaptation of the current projects already completed, each one within its respective specificity. This work aims to implement energy efficiency retrofit techniques in buildings (EEE), being shown its technical and financial feasibility, duly supported by internal technical standards of the Army. For this purpose, the DesignBuilder and PVSyst software were used, in which, through the introduction of data related to the mentioned building, simulations were carried out in the existing building, proposing improvements so that the classificacion of the building’s labeling could be transferred to Level “A”. According to the methodology for labeling prescribed in the INI-C, approved by the Ministry of Economy/National Institute of Metrology, Quality and Technology - Inmetro on March 9, 2021, the actual existing building reached the level "B" labeling and the building with the modifications, it reached the “A” level of Energy Efficiency, with a decrease in energy consumption in the air conditioning system and in the lighting system. Seeking greater energy savings, a photovoltaic power generation system was designed to meet the energy demand of the building and a solar water heating system.