Contribution to the improvement of thermal comfort in a bioclimatic building by integration of a phase change material.

Yacouba Camara (1) , Xavier Chesneau (1) , Cellou Kante (2)

1 LAMPS - LAboratoire de Modélisation Pluridisciplinaire et Simulations
2 Laboratoire d’Enseignement et de Recherche en Energétique Appliquée, Université Gamal Abdel Nasser de Conakry, Mamou, Guinée

The objective of this research is to enable the improvement of energy performance of bioclimatic habitats in tropical hot and humid zones. Numerical modeling of heat transfer phenomena in a stabilized clay brick (BTS) habitat with a transparent tile roofing, a false ceilings containing encapsulated phase change materials and a concrete floor is presented. A study on indoor air temperature distributions was conducted as well as on heat storage in phase change materials and on the storage and restitution efficiencies as a function of thickness. To show the reliability of our research, we validated the chosen model through an experimental study by (Zivkovic and Fujii, 2001). In addition, we did a comparative study between air temperatures for habitats with and without phase change material in the false ceiling to see the existence of thermal comfort in the habitat which is the goal of this study. The values of these air temperatures observed at 16 h in a modern habitat and a conventional habitat are respectively 28,14 °C and 29,02 °C. The values of storage and restitution heat efficiencies in PCM are respectively 25.92% and 19.34%for the first day.

Mots clés: Bioclimatic habitat; Heat storage; Thermal comfort

Domaines: Physique [physics]

Yacouba Camara, Xavier Chesneau, Cellou Kante. Contribution to the improvement of thermal comfort in a bioclimatic building by integration of a phase change material.. International Journal of Engineering Research and Science & Technology, 2018, 7 (2), pp.1-22. ⟨hal-01800087⟩