Resumo

GONZALEZ, Rosalinda et al. Daylighting evaluation of the prototype bioclimatic house (VBP-1). Rev. Téc. Ing. Univ. Zulia [online]. 2008, vol.31, n.1, pp.58-70. ISSN 0254-0770.

The aim of this paper is to evaluate the bioclimatic prototype house (VBP-1) in terms of daylighting, studying quantitative results as well as qualitative aspects. The VBP-1, was designed for Maracaibo city, Venezuela, which is 10°40.5’ north latitude. Two indoor spaces were selected for the experimental procedure, featuring daylighting strategies such as a zenithal element, metallic blinds panels and a perforated wall. A mesh was defined to measure indoor horizontal illumination. There were also carried out measurements of reflectance for internal surfaces and outside horizontal illumination under a covered sky condition. The evaluated parameters were: Luminic levels, Daylight Factor and Uniformity Factor. The results were analyzed with SPSS-V12, which allowed identifying two areas of light predominance: near the zenithal element (2100-4959 lux) and near metallic blind panels (40-60 lux). These results respectively represent 15% and 85% of floor area. Light levels observed in the living room were the minimum required by norms, while in other areas (kitchen and workshop) the minimum was not reached. From the qualitative point of view analyzed in this study, such as contrast sensation, it was predominantly high between the identified light areas. As a conclusion, indoor spaces should be improved from the daylighting point of view to allow comfort conditions for the development of human activities.

Palavras-chave : Daylighting evaluation; prototype bioclimatic house; daylighting; zenithal element; daylighting systems.