APPLICATION OF THE DIFFERENTIAL METHOD OF THERMAL CALCULATION FOR TUBE FURNACES WITH FAN-SHAPED NEAR-WALL FLAME BURNERS
The paper describes a method of differential thermal analysis of tube furnaces with gas petrochemical grazing fan-burner flame. Processes occurring in the furnace tube furnace, simulated two-dimensional energy equation of radiative transfer, turbulent flow of combustion products, continuity, k-e turbulence model and a simple model of the combustion of natural gas. The transfer of energy by radiation is considered as part of S2 – approximation of the method of discrete ordinates. The issues of boundary conditions to the above equations and numerical approximation of differential equations. Some results of numerical studies of the influence of tiered burners and direction flooring torches on the aerodynamics of the flue gas to the distribution of the surface density of the radiant flux of heat to the tubular screen and on the temperature in the chamber radiation processing tube furnace.