The Effect of Stochastically Dependent Physical Parameters on the Materials’ Thermal Receptivity Coefficient

Abstract

The most frequently employed calculation methods to determine the thermal receptivity of multi-layer partitions do not allow the correct estimation of the thermo-physical parameters of lightweight timber frame partitions. The mentioned assertion was examined and proved on the basis of the results achieved both by the use of computer simulation tools and during the experimental research. In fact, the parameters defining the thermo-physical properties of the materials calculated by the introduced methodology differed from the ones achieved by experiment up to 40 %. The effect of the stochastically dependent physical parameters on the thermal receptivity coefficients of the materials of the lightweight timber frame partition is discussed in this paper. The calculations based on the experiment data were performed by adopting the methods of mathematical statistics and the theory of chances.