TRANSIENT THERMAL BEHAVIOR OF DECOMPOSING MATERIALS. PART 1. GENERAL THEORY AND APPLICATION TO CONVECTIVE HEATING

Abstract : A mathematical model is presented for the transient behavior of materials which undergo thermal decomposition. The general model accounts for a rate-controlled decomposition as well as internal heat transfer by conduction, convection, and radiation. The behavior of the model under conditions of convective heating is examined by means of analog simulation. Results of this simulation for a charring material and for Teflon are presented and the results on Teflon compared with experimental data.