A NUMERICAL STUDY ON THE HEATING OF A CAST-IRON SLAB IN A CAR-HEARTH FURNACE

A numerical study on the transient healing of a cast iron slab in a ca r-hearth-furnace is presented. The influence of the direction of jets issuing from the burners on the velocity and temperature fields during the heating period was investigated. The standard k-epsilon turbulenc e model is used in the present study. It is found that the direction o f the jets has a significant influence on the temperature distribution in the slab. It is also shown that inclined jets produce a more unifo rm temperature field and that the time needed for the slab to reach a predetermined temperature can be significantly reduced which results i n the reduction of energy consumption.