Eficiência energética em edificações residenciais: estudo de caso pelo método da Instrução Normativa Inmetro nº 309/2022

Abstract

Due to the growing consumption of electric energy, new ways of generating and saving energy are being sought. As far as a building is concerned, its energy efficiency is a result of the choice of its construction components and the equipment used. In Brazil, the energy efficiency of a building is related to its envelope, air conditioning system, and lighting system, and is determined according to the parameters established in INMETRO Normative Instruction No. 309/2022. Thus, using the regulation, the present work sought to classify the energy efficiency of a single-family building located in Dourados- MS, which resulted in an Overall Efficiency Classification level "A", with an associated primary energy consumption reduction percentage of 58%. The other analyses, which were fundamental for the General Classification, also obtained the highest level of energy efficiency (Level A), with consumption reduction percentages of 81.55%, 74.72%, 36.00% for the envelope, air conditioning system and lighting system, respectively, thus verifying the importance of structured constructive and luminotechnical projects for obtaining the efficiency of the building.