Subsídios para o projeto da ventilação natural em pavilhões industriais

Abstract

The natural ventilation must be the first alternative to be studied for industrial environment design, and this fact is due to several reasons related to costs and market requirements. The design methods for natural ventilation system of a building take into consideration meteorological situations: the existence or the non-existence of wind. In the first situation, the ventilation is promoted by the wind effect and by the so-called stack effect. In the second situation, that is, when there is no wind, the ventilation only exists by the effect of natural convection, that is, the stack effect. In the Brazilian, as well as in the international technical publications, different equations are presented to perform the natural ventilation calculation for industrial buildings. According to Frota (1989), the use of those models leads to several results. However, the results showed in this paper indicate that the considered theoretical models show results that are compatible with the good exercise of the Engineering