Apparent thermal conductivities of high-porosity cellular insulants

W.J. Batty, S.D. Probert and P.W. O'Callaghan

Applied Energy, 1984, vol. 18, issue 2, 117-135

Abstract: Mathematical models of heat transfers through multi-phase materials have been examined. A model is proposed to describe the thermal conductivity of high-porosity cellular insulants: heat transfers by conduction through the solid and gaseous phases as well as by radiation are considered. Predictions were found to agree well with experimental data for air-filled polystyrene foams and to be of the correct order of magnitude for air/fluorocarbon-filled polyurethane foams.

Date: 1984
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