Shopping Centers à luz da eficiência

Abstract

Since the first shopping had been built in Brasil, it has been modificating over the last 50 years because of cultural, urban and environmental changes that had expand its functions beyong to a comercial centre to a lazer and living places. Because of social, environmental and economical changes those were accentuated by energy crisis at 2001, when “Apagão” happens, and in 2015 by insufficient energy production by hydro power because drought. It was therefore sought to design shopping malls with better quality of internal space and with reduced energy consumption during the operation of the building This research aims to achiving lighting design performance, spatial quality and energy efficiency throught daylight design strategies, when improving the porcentage of areas those are permeated by natural light and its integration to artificial lighting system. There were made some proposals with parametric variations and diferente translucent materials were applied in vertical and horizontal windows of two diferentes typologies, 2 and 4 floors at São Paulo metropolitan region. The assessment of buildings undertook in loco measurements, simulation based-model through ReluxPro and the analysis of the comsumption index of the envelope, defined by RTQ-C Procel of proposals made, in order to indicate the better strategies for design performance and to determine the relation between shape and amount of indoor light. The results showed the possibility of increasing daylight harvesting in both cases beyong to RTQ-C requires, however they are protected using innovative diffused daylight systems. In addition, the vertical openings are essencial to better distribution of light and to create points of interest in tall buildings.