摘要：Temperature and wind are important parameters influencing perceived indoor air
quality and human comfort. The rapid expansion of the Djibouti city is negatively
affecting the environment, safety and the comfort of its inhabitants. The large
majority of the population living in Djibouti uses air-conditioning for cooling their
house and work environment. The application of an alternative development strategy
that includes sustainable and bioclimatic concepts such as natural ventilation can
prevent the abusive use of mechanical techniques, providing indoor climatic comfort.
Based on energy consumption, climate conditions in Djibouti and numerical analysis
using Computational Fluid Dynamics (CFD), it is apparent that the natural
ventilation creates a thermally comfortable indoor environment in buildings. The
parameters considered in the study were the air velocity, the temperature and the
mean age of air in the building. The study shows a design approach for selecting
building architectural alternatives to improve natural ventilation behavior using CFD.
The results indicate a good potential of natural refreshment with an air changed time
less than 10 minutes inside the building. These results help and guide a country
which has hot and humid climate to optimize technical and architectural solutions
maximizing natural ventilation potential.
