Mathematical Modeling of Multicomponent Nonisotherhermic Diffusion in the Process of the Thermal Decomposition of Ammonium Nitrate Melt in a Dispersed Flow

Abstract

The kinetics of the heterogeneous process of the thermal decomposition of condensed substance particles with the formation of gaseous reaction products is considered using an example of the process of obtaining nitrous oxide via the thermal decomposition of the ammonium nitrate melt. A mathematical model has been obtained based on the methods of the thermodynamics of irreversible processes taking into account the thermal phenomena and the multicomponent composition of the reaction products. Using the methods of multicomponent hydrodynamics, expressions of crossed kinetic coefficients determined from the measured physical quantities have been obtained. An analysis was carried out for some particular cases of the process using the developed mathematical model.