The volumetric heat generating fuel debris bed with bottom flow has been analyzed using one-dimensional energy equation for porous media to predict the coolability of the bed.
Based on the Factorial Design results, parametric sensitivity study has been performed for six parameters, namely, inlet coolant temperature, system pressure, inlet mass flow rate, particle size, bed height and heat generation rate. It was found that the coolant temperature and pressure are of great influence on the "Dryout Time". On the other hand the inlet flow rate and bed height are the most influential parameters on the "Maximum Debris Bed Temperature".
Finally, to verify the model used in the study, comparison has been made between the results of DCC-3 experiment and the debris bed temperature prediction of studied model.
