Titre : Transient thermo-hygrometric CFD model of Trombe wall system 

Auteurs : Nour El Zein
, Philippe Désévaux
, Yacine Ait Oumeziane
, Sylvie Bégot
, Valérie Lepiller,  

Revue : Entropy: Thermodynamics – Energy – Environment – Economy  

Numéro : Special issue SFT Prix Biot-Fourier 

Volume : 5 

Date : 2024/08/9 

DOI : 10.21494/ISTE.OP.2024.1190 

ISSN : 2634-1476 

Résumé : The objective of this study is to develop a transient CFD model representing the dynamic behavior of Trombe walls. The current model takes into consideration variable solar radiation as well as the presence of occupants and their activities. The temperature and velocity profiles at different locations are plotted. The moisture’s impact on the hygrothermal behavior is then investigated. The results show that the relative humidity distribution inside the system is mainly influenced by the ventilation strategy in which the moisture is accelerated and transported by the flow in the case of vents opening. The finding revealed that the maximum relative humidity (RH) reached in the system doesn’t exceed 22%. However, due to the lower temperature values observed in the system during overcast winter nights, there is a potential condensation risk on glass and wall surfaces. 

Éditeur : ISTE OpenScience