Numerical modeling of the heat transfer mechanism in intumescent heat- and fire-protection materials

Characteristics of the heat-transfer mechanism in a layer of intumescent heat- and fire-protection material are considered within the framework of a model that takes into account conductive, convective, and radiative transfers. It is established that radiative heat transfer plays a dominant role in the formation of a temperature field. The coke structure (the presence of perpendicular interlayers) exerts an insignificant influence on the rate and depth of heating of the material.