Modeling of low-grade pulverized coal combustion

Abstract

The article is devoted to the complex research processes of heat and mass transfer occurring in the real
conditions of solid fuel (coal) combustion. Development of technological processes with economic and
ecological advantages are the main purpose for many researches in thermal physics and technical physics.
The complex processes of heat and mass transfer in the presence of combustion are non-stationary,
strongly non-isothermal with a constant change in the physical and chemical state of the environment. It
greatly complicates their experimental study. In this case, studying of heat and mass transfer in highreacting
media with simulation of physical and chemical processes occur during combustion of pulverized
coal is important for the solution of modern power engineering industry and ecology problems. In this
regard, a comprehensive study of heat and mass transfer processes at high-temperature media observed.
Investigations based on the achievements of modern physics by using numerical methods for 3D
modeling. Numerical experiments are conducted to describe and study aerodynamic characteristics, heat
and mass transfer processes during the burning of pulverized Kazakhstan low-grade coal. The results
obtained are of great practical importance, since they allow us to develop recommendations for the
improvement and design of new combustion chambers and burners, and also can be useful in optimizing
the whole process of burning fossil fuels.