Computational modeling of heat and mass transfer processes in combustion chamber at power plant of Kazakhstan

Abstract

Abstract. In this paper the results obtained by the method of numerical modelling of Ekibastuz coal burning in furnace of Kazakhstan Power Plant. Numerical experiment was carried out on the basis of three-dimensional equations of convective heat and mass transfer, taking into account the heat propagation, heat radiation, chemical reactions and multiphase structure of the medium to predict the influence of different water content in coal on overall furnace operation and formation of combustion products.

Research of Characteristics of Heat and Mass Transfer at the Introduction of Technology of Steps Fuel Burning on the BKZ-75 Boiler of the Shakhtinskaya TPP

“…To model heat and mass transfer in the presence of physicochemical processes, the fundamental laws of conservation of such quantities as mass, momentum, energy are used. Since heat and mass transfer in the presence of physico-chemical transformations is an interaction of turbulent movements and chemical processes, we must also take into account the law of conservation of the components of the reacting mixture, turbulence, multiphase environment, heat generation due to radiation from a heated medium and chemical reactions [11][12][13][14][15][16].…”

Numerical Simulation of Heat and Mass Transfer at the Partial Stop of Fuel Supplying in the Chamber of TPP

“…The most important pollutants entering the atmosphere when burning pulverized coal in combustion chambers are particulate matter (ash, dust, soot particles), as well as gas emissions (nitrogen, carbon, sulfur oxides, etc.) [7][8][9][10][11][12][13][14][15]. Currently, it is necessary to develop "clean" technologies for generating electricity.…”

3d Modeling of Combustion Thermochemical Activated Fuel

“…Heat and mass transfer processes in the presence of physical-chemical transformations and combustion are non-stationary, strongly non-isothermal with constant changes in the physical and chemical state of the environment, which greatly complicates them both experimental and theoretical study. Such flows are described by a complex system of non-autonomous nonlinear partial differential equations, in which the essential turbulence, multiphase nature of the medium, and source terms associated with the chemical kinetics of the processes occurring must be taken into account [1][2][3][4][5].…”