Titre : In situ measurement of the heat transfer coefficient on a building wall surface: h-measurement device based on a harmonic excitation 

Auteurs : Adrien François, Laurent Ibos, Vincent Feuillet, Johann Meulemans,  

Revue : Entropy: Thermodynamics – Energy – Environment – Economy  

Numéro : Issue 4 

Volume : 1 

Date : 2020/07/7 

DOI : 10.21494/ISTE.OP.2020.0547 

ISSN : 2634-1476 

Résumé : This paper presents a novel in situ measurement method of the total heat transfer coefficient on a building wall. The device developed is based on harmonic thermal load of the wall surface. In situ tests of the method were performed in a steady environment as well as in off-equilibrium conditions (generated using electrical heaters). The heat transfer coefficient was estimated to 7.5 and 9 W.m−2.K−1 respectively. A parametric analysis allows determining the optimum operating conditions. The results obtained were in good agreement with standard values found in the literature. Measurement uncertainties were evaluated and a simple analytical model of the device was also developed. 

Éditeur : ISTE OpenScience