Titre : Quantifying the impact of fiber-to-fiber thermal contact resistance on conduction in fibrous insulation materials 

Auteurs : Clémence Gaunand
, Yannick De Wilde
, Valentina Krachmalnicoff
, Adrien François
, Veneta Grigorova-Moutiers
, Karl Joulain,  

Revue : Entropy: Thermodynamics – Energy – Environment – Economy  

Numéro : Special Issue 

Volume : 6 

Date : 2025/10/10 

DOI : 10.21494/ISTE.OP.2025.1346 

ISSN : 2634-1476 

Résumé : We describe a new nodal simulation approach, and a corresponding theoretical model, to quantify thermal conduction through the solid phase in three-dimensional fibrous networks, with the impact of fiber-to-fiber thermal contact resistances. We demonstrate that the solid thermal conductivity can be calculated by a master curve, based solely on geometric parameters of the medium, particularly in the case of low-connectivity. This provides a powerful predictive tool to be applied to the study of real insulation materials, to develop in particular optimization strategies based on structural parameters. 

Éditeur : ISTE OpenScience