Numerical Study of a Natural Ventilation System in Hot Climate Regions
Keywords:
Solar energy, Solar chimney, Natural ventilation, Numerical simulation.Abstract
In order to make the best use of solar energy and for an adequate dimensioning of bioclimatic dwellings at reduced cost, we will develop in this study, an economical process of natural ventilation. The model is considered as a room of dimension (1m x 1m x1m) equipped with a solar chimney inclined at 45° to the horizontal to predict the performance of the proposed system. Then, we present the effect of temperature variation at the entrance of the room on the air renewal rate. We modeled the different flows produced by the fluent calculation code. The equations of conservation of mass, continuity of motion and energy are solved by the finite volume method. The validation of the results was done by data extracted from the literature. The interest of our work focuses on the notions of natural convection due to the thermal transfer of heat which have taken on particular importance in recent years due to the high cost of energy and the resulting imperatives of economy, hence the need to learn about thermal transfers.
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