Eficientização da iluminação de um escritório em um prédio comercial em Belo Horizonte, Minas Gerais

Abstract

The purpose of this study is to evaluate the lighting system of a commercial office in the city of Belo Horizonte, Minas Gerais, in regard to its energy efficiency. Conditions of comfort of users and existing lighting system were considered. The illuminance of the various rooms will be measured according to the procedures prescribed in ABNT NBR 5382/1985 - Verification of illuminance Interior and ABNT NBR 15215-4/2005 - Natural lighting - Part 4 - Experimental verification of the conditions of indoor lighting of buildings and then the results were compared with the limits set in the standard ISO / CIE 8995-1/2013 - Lighting of work environments Part 1: Interior. The office lightings was classified according to the Quality of Technical Requirements for Level Energy Efficiency of Commercial and Public Service Buildings by the method of building activities. A computer software was used to simulate current conditions and various proposals for improvements aimed at reducing energy consumption and make the most efficient installations without harming the conditions of visual comfort of the users. The simulations showed that the substitution and redistribution of set of lamps, ballasts and luminaire in the main rooms guarantee a saving of 32.79% on energy consumption and the change in the level of energy efficiency from C to A, which is the classification more efficient.