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Abstract
A numerical study has been conducted for heat transfer in a soaking pit. A transient three-dimensional radiation-convection-conduction model is presented. Parametric simulations are performed to assess the effect of various operating parameters on the heat transfer to the ingots. Results have shown that, under typical operating conditions, forced convection and radiation account for approximately 75% and 25% of the total heat transfer to the ingots, respectively. Heat transfer is maximized for a specific distance between the ingots. The average heat transfer coefficient to the ingots is strongly influenced by the gas mass flow rate but is nearly independent of the inlet gas temperature and of the ingot length.