Affiliation:
1. Université Clermont Auvergne
Abstract
The energy performance of buildings represents a major challenge in terms of sustainable development. The buildings and buildings construction sectors combined are responsible for over one-third of global final energy consumption and nearly 40% of total direct and indirect CO2 emissions. In order to reduce the energy consumption of buildings and their harmful impact on the environment, special attention has been paid in recent years to the use of bio-based materials. Several works have been carried out in the last decades in order to model the coupled heat, air and moisture transfers in the building envelope but the difficulties lies in the identification of numerous parameters that the HAM proposed models use. In the present paper, a sensitivity study regarding the HAM parameters is implemented in order to apprehend the most determining parameters during the transfer processes. A reduced model based on these parameters is then determined.
Publisher
Trans Tech Publications Ltd
Reference5 articles.
1. Qin, M., Belarbi, R., AïLuit mokhtar, A., and Nilsson, L.-O. (2008). Nonisothermal moisture transport in hygroscopic building materials: modeling for the determination of moisture transport coefficients. Transp Porous Med 72, 255–271.
2. Abahri, K. (2012). Modeling of coupled heat, air and moisture transfer in porous building materials. La Rochelle University.
3. Ferroukhi,M. (2015),Modélisation des transferts thermo-hydro-aérauliques dans les enveloppes de bâtiments : Evaluation des désordres causés par l'humidité. La Rochelle University.
4. Ait Oumeziane, Y. (2013). Evaluation des performances hygrothermiques d'une paroi par simulation numérique : application aux parois en béton de chanvre (Rennes, INSA).
5. Collet F., Pretot S., Lanos C., Etude expérimentale du comportement hygrothermique d'une paroi en blocs de béton de chanvre avec ossature en bois, XXIXe Rencontres Universitaires de Génie Civil. Tlemcen, (2011).