Resumo

MUNOZ VASQUEZ, N; MARINO, B.M  e  THOMAS, L.P. Characterization of the thermal behaviour of a prototype building in Tandil (Buenos Aires). An. AFA [online]. 2015, vol.26, n.2, pp.78-87. ISSN 0327-358X.

The choice of the location and orientation of a construction and the decisions made during the early stages of the design affect significantly the energy consumption necessary for its functioning. Particularly, this is the case in which the optimal use of natural ventilation is convenient to reduce energy costs and pollution of the air indoors. Careful control of the solar resource can also considerably diminish the costs derived from the use of air conditioners. The thermal behaviour of a building that is representative of the constructive procedure in Tandil city is evaluated during the summer with the purpose of optimizing future constructions that minimize the energy comsuption. The analysis of continuous and systematic temperature and humidity measurements performed with sensors in specific points inside the building and the external meteorological parameters is presented. The information collected is integrated by means of an analytical model that considers the contributions of the conductivity, radiation and convection caused by the wind. The goal is to estimate the typical thermal parameters of the building and, with them, the heat flux across the envelope, solving the "inverse problem". The results are compared with those obtained solving the standard "direct problem".

Palavras-chave : Thermal evaluation; Analytical model; Heat transfer; Actual use conditions.

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