Interferência do entorno construído na disponibilidade de luz natural no interior do ambiente no litoral norte de Maceió-AL.

Abstract

By the need for energy conservation, there is a preoccupation on energy efficiency in buildings, by adapting to the local weather conditions and guaranteed access to sunlight in urban areas. It turns out that the availability of indoor daylighting suffer significant interference from the surrounding obstruction in the urban environment. Therefore, some urban and building parameters are determined by the urban legislation to establish land use limits and hence of visible sky. Given these aspects, this study aimed to analyze the interference of the urban environment in the availability of indoor daylight of multifamily buildings in the north of Maceió coast, from urban parameters established by regulation. In addition, we evaluated the contribution of the master plan and other regulations in fostering the availability of natural light, because it is a new area of the city to be worked and great potential for the use of natural resources. The methodology consisted of a parametric study with the use of simulation in TropLux 6 software to study the influence of the following parameters related to the urban environment: the road width, height obstruction, reflectance of the vertical outer surfaces, front and side distance and height in the building environment. Given our results, it was found that the presence of obstruction for the case study, although in most cases reduce the level of indoor daylighting, was effective in the use of natural lighting to maintain, most of the hours analyzed during the year, the illuminance values in the useful range of 100 lx to 2.000 lx. Finally, there was the importance of including more specifically, the Town Planning Code and Construction of Maceió city, parameters that provide effectively the use of natural light inside the environment, contributing to, so in control of the availability of illuminance within the company and consequently the possibility of reducing the consumption of electricity by means of artificial lighting.