Fluid Dynamics & Aerodynamics

Biography

Biography: Iurii Sharikov

Abstract

Mathematical modeling of processes in the chemical and metallurgical industries is widely used nowadays to create industrial production on the basis of experimental studies of the processes in the laboratory. A common method for creating mathematical models of processes is the synthesis of heat and mass transfer equations on the basis of dynamics equations of moving phases and source terms that express the kinetics of chemical reactions and phase transitions and thermal effects. To investigate the kinetics of chemical reactions in multistage polyphase systems, it is very effective to use the heat flux calorimetry in conjunction with the analysis of the composition in characteristic points in the heat generation curves. Using this technique, we have conducted studies of the kinetics of chemical reactions in the process of producing cement clinker and in the preparation of alumina in tubular rotating kilns, as well as processes for the modification of epoxy resins to enhance their functionality. On the basis of experimental data, the parameters of kinetic models were determined by solving the inverse kinetic problems and verified the adequacy of the obtained models. Created on the basis of these kinetics data, mathematical models of reactor unit have been used for the optimization of processes in industrial conditions. Optimization tasks have been solved using the method of nonlinear programming in the environment of a specialized software package for the development and analysis of mathematical models of reactor units. Special structure of control system has been developed for the implementation of discussed processes.