Theoretical expressions of thermal conductivity of wood

Abstract

In this paper, the theoretical expressions of wood thermal conductivity in the choral and radical direction are derived from the micro-structure of wood by applying some basic principles in physical mechanics. The thermal conductivities of about twenty species of trees were calculated by means of the expressions and compared with its experimental values under the same condition. The average relative error is about 5% so the calculation result is satisfactory.

Keywords

Thermal conductivity / Wood / Choral direction / Radical direction / Theoretical expression / S781.3 / A