Lee’s and Charlton’s Method for Investigation of Thermal Conductivity of Insulating Materials

Abstract

Thermal property is the important material property for engineering and analysis of insulating materials. In this study, thermal conductivities of insulating materials are determined and compared with the literature values. Lee's and Charlton's apparatus is used to measure this property of insulating materials by steady state technique. This apparatus gives more precise result for insulators that can be utilized for the further thermal related analysis. An experimental set up is prepared to determine and analyze thermal conductivities of insulating materials. The thermal conductivities are obtained by this apparatus are 0.797W/m.K, 0.3023 W/m.K and 0.057 W/m.K for borosilicate glass, styrene butadiene rubber, and polyolefin foam faced aluminum foil respectively. The experimental results are found (9-30) % deviation from the literature values.