In situ measurement of heat transfer coefficient on a building wall surface: h-measurement device based on a harmonic excitation
Heat transfers from the surface of a building represent a significant part of the overall building energy consumption. It has been shown that the uncertainties on the internal and external heat exchange coefficients have a large impact on building energy simulations (BES) outputs. In addition, accurate in situ measurements of building heat losses require an estimation of the heat transfer coefficients. In both situations, these coefficients are seldomly measured in situ because of the complexity of the process.