Thermal calculation of the radiation chamber of an ethane pyrolysis furnace

Abstract

Using our own application package that implements the differential method of thermal calculation of furnaces, we calculated the temperature fields in the radiation chamber and the distribution of heat fluxes along the tubular reactors in a ethane pyrolysis furnace. The interconnected combustion processes of fuel gas, the turbulent flow of combustion products, radiant-convective heat transfer are described by two-dimensional equations of transport and motion. Wall burners are installed in eight horizontal rows on both walls of the radiation chamber. The combustion products of fuel gas in the air leaving the nozzles 128 of the burner create complex fields of flow velocities and temperatures in the radiation chamber of the furnace. Heat fluxes to the reaction pipes are formed due to the radiations of flue gases, soot particles and hot lined surfaces of the walls of the combustion chamber.