Abstract

The objective of this paper is to determine temperature dependent heat transfer coefficient for the characterization of building porous materials in the range 20 – 60ºC, using the approach based on the solution of the inverse heat transfer problem and the results of measuring boundary conditions. The Levenberg–Marquardt iteration algorithm in software MATHEMATICA is applied to solve nonlinear system of algebraic equations resulting from the sensitivity matrix. The surface temperature distribution is measured using the infrared camera.