Adaptive approach of thermal comfort and correlation between experimental data and mathematical model in some schools and traditional buildings of Madagascar under natural …

A good ventilation is important to improve indoor air in buildings. In Sub-Saharan Africa regions and other
countries, both health and productivity are indeed elements depending on indoor comfort. The purpose of this
research is to suggest a new thermal comfort approach based on subjective responses of occupants and math-
ematical models. There is a lack of data about indoor comfort in residential buildings in the tropical islands of
Indian Ocean and the aim of the research is to propose guidelines for more comfortable constructions in
Madagascar and other countries of the Indian Ocean. Experimental and subjective data were collected in 67
traditional habitats and 25 public and private schools, located in 25 districts of urban communes in the Northern
Madagascar. Mathematical modelling was based on Rohles approach. At total of 992 questionnaires were col-
lected and analysed during rainy and dry seasons. The results showed that traditional buildings were more
comfortable than schools. Comfort temperature varied from 24.6 to 28.4 °C during both seasons in residences
and schools. When the indoor air temperature varied in the 24.5
–
27.5 °C range, more than 80% of peoples were
satis
fi
ed.