Obtaining the Short-Wave Radiation Absorptivity Based on the Surface Temperature Measurement and Ham Simulation

Abstract

Measurement of the outdoor climate is very important for the possibility of using HAM simulation tools. These tools are depending on the boundary conditions, material properties and also on the surface transfer coefficients, which are influencing the calculation. One of them is shortwave radiation absorptivity. This is basically depending on the color of the surface and influences the surface temperatures, which subsequently influence the HAM transport within the wall. In this paper, measurement of surface temperatures of experimental wall helps to calculate the shortwave absorptivity of coating with use of measured solar radiation and HAM simulation in WUFI Pro simulation tool.