Thermal explosion in periodic reactor. heterogeneous system liquid - solid
There are investigated regularities of thermal explosion in periodic reactor of ideal agitation with heterogeneous system liquid - solid. At first there are both phases in the reactor. Solid reagent dissolves and reacts with a liquid phase. The dependence of critical value of Semenov's parameter on nondimensional time of full dissolution of solid reagent is established. It is shown that at small values of full dissolution time the size of critical value of Semenov's parameter practically doesn’t depend on this time, and thermal explosion develops like in homogeneous system according to Semenov’s theory. «Heterogeneous» properties of reacting system appear only at large time values of full dissolution.