Material selection in order to minimize the heat loss of piping based on measurements and calculations

Abstract

In this paper a laboratory test completed with caclulations will be presented in order the designate a possible material to be used as an insulation for a pipe system. Four different types of insulation materials (fibrous aerogel, mineral wool, armaflex and polyurethane) will be tested. Once their thermal conductivity will be measured with a Holometrix lambda heat flow meter apparatus. Afterwards, sorption measurements will be carried out under two different states, furthermore, the results will be completed with optical microscope images to visualize the surface structure of the probes. The laboratory measurements results will be used for heat transfer calculations in the function of the varying surface temperature differences. Subsequently, the measurements will be used for calculations with respect to the pipe system of the "ALTAIR" advanced personalized ventilation system.