Desempenho termoenergético e ótico da janela inteligente por simulação computacional

Abstract

This work aims to develop an electrochromic glass and characterize its optical properties. In addition to analyzing the thermoenergetic performance of a building with office activities with electrochromic glass. The study was developed experimentally through a comparative study with the common 3mm and 6mm glass in Sage Glass 9mm electrochromic glass, in order to analyze the energy consumption and thermal comfort from artificial air conditioning and natural ventilation, respectively. In order to determine the optical characteristics in relation to the solar radiation of the experimentally developed electrochromic window. The procedures described by Pizzutti (2002) with some adjustments were used. The procedure was applied for the uncolored glass and for the colored glass. For the computer simulation the EnergyPlus software was used, the simulations were carried out in two bioclimatic zones, in the bioclimatic zone 2 (ZB 2) and in the bioclimatic zone 8 (ZB 8), where the climatic archives of the city of Camaquã and of the city of Manaus, respectively. It was observed that the electrochromic glass studied experimentally, has values of transmittance and reflectance similar to commercially available electrochromic glasses. It was also possible to verify that building with electrochromic glass developed experimentally presented a better level of thermal comfort in the hours occupied, and that the energy consumption for cooling decreases as the color increase, especially in ZB 8, because it is a region with a hot climate. It was observed that in ZB 2 in some months of the year the electrochromic glass remained totally discolored, since the setpoint temperature was always higher than the external temperature.