CERAMICS & GLASS

Mineral Fiber Insulation — Thermal Conducitvity

A mineral fiber insulation generally used to insulate kitchen furnaces was measured between room temperature and 500°C.

As it is typical for most insulating materials, the results for the Thermal ConductivityThermal conductivity (λ with the unit W/(m•K)) describes the transport of energy – in the form of heat – through a body of mass as the result of a temperature gradient (see fig. 1). According to the second law of thermodynamics, heat always flows in the direction of the lower temperature.thermal conductivity increase in a nearly linear fashion around room temperature. At high temperatures, the thermal conductivity increases more markedly. This can be explained by the increased radiative contribution to the effective thermal conductivity. (measurement with GHP 456 Titan®®)