E3S Web Conf.
Volume 128, 2019XII International Conference on Computational Heat, Mass and Momentum Transfer (ICCHMT 2019)
|Number of page(s)||4|
|Section||Internal Flow and Heat Transfer|
|Published online||08 November 2019|
Moisture transfer modelling in polystyrene mortar with consideration of sorption hysteresis
Laboratoire des Sciences de l’Ingénieur, UMR 7356, CNRS, Université de La Rochelle,
2 Laboratoire de Mécanique et de Technologie, ENS Cachan, CNRS, Université Paris–Saclay, Cachan, France
3 Laboratoire d’Etude des Microstructures et de Mécanique des Matériaux, CNRS, UMR 7239, Université de Lorraine, Cachan, France
* Corresponding author: email@example.com
The walls of buildings experience heat, air and moisture transfers. These transfers have a significant influence on indoor climate, since they affect the value of temperature and relative humidity inhouses. High levels of humidity lead to pathologies in the buildings, and influence the air quality and the hygrothermal comfort of the occupants. In this work, a numerical analysis of the behaviour of polystyrene mortar under hydric solicitations was led. The simulations were held using ComsolMultiphysics and MATLAB. There were two different moisture transfer models used in this work: the first one took into account sorption hysteresis phenomenon, and the other one did not. The computed results showed that considering sorption hysteresis in modelling the hydric behaviour of the material allows obtaining more accurate results comparing to a model that does not consider hysteresis.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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