Hence a numerical model was developed using FLUENT, a computational fluid dynamics software. The Pyrosim model considers the thermodynamic equilibrium and a mass and heat balance but does not consider the effects of fluid flow and heat transfer. REACTIONS IN PYROSIM PCIt was concluded that oxygen for PC may be more effective if added at a higher rate during earlier parts of the heat. EAF steelmaking was modeled as a series of steps. The dynamic model was divided into various stages and the composition of metal and slag was calculated at different times during the heat. The EAF was modeled as a single reactor with four zones: a melting zone a foamy slag zone a post combustion zone and a duct zone. The global model considered all the inputs into the furnace and based on those inputs predicted the outputs from the furnace. Thermodynamic models (Global and Pseudo-Dynamic) were developed using the Pyrosim software. The purpose of this research was to develop a better understanding of the post-combustion process and evaluate the effects of heat transfer and fluid flow phenomena that take place in the EAF. This reaction being highly exothermic results in large quantities of energy which can be utilized within the furnace. Post combustion is the injection of secondary oxygen into steelmaking vessels in order to convert the generated CO to CO 2. This energy is the target of post-combustion studies. "There have been a lot of technical advances in electric arc furnace (EAF) steelmaking over the last 30 years, but there is still a significant amount of energy that might be recovered and utilized within the EAF to improve the productivity and reduce the carbon monoxide content of the offgas.Ībout 20% of the energy in a typical EAF is lost as sensible heat or unutilized chemical energy in the offgas.
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