Mesures fluxmetriques et notion d'impedance thermique appliquees a la caracterisation d'une paroi de batiment soumise a des sollicitations naturelles

From superficial heat flux and temperature measurement on a wall, we find the elements of the transfer matrix which are characteristic of this conductive system. In-frequency domain signal treatment methods allowed us to use natural random signals. Our analysis is limited herein to homogeneous walls with unidirectional transfer by conduction. With the thermal impedance notion, we can find the effusivity and diffusivity of the wall. Then, we compare the experimental results with a theoretical representation.