Modeling of exhaust duct for electric arc furnaces
The exhaust duct with distributed suction of gas alongside the duct is investigated as well as possibility to implement such exhaust device for gas evacuation in electric arc furnaces (EAF). On the basis of hydrodynamics laws and ventilation theory the simplified mathematical model was developed. This model can be used for calculation of gas suction and movement velocity in design of duct in question. Proposed construction of duct was calculated in more precise gas-dynamic formulation using COMSOL program application for two-dimensional flow. Comparison of results showed correspondence of data received by two ways of calculation. It indicates that simplified model is appropriate for calculation of duct which helps to reduce gas evacuation velocity.