THE PERFORMANCE OF A COLD CRUCIBLE MELTING OF REFRACTORY MATERIALS

摘要

To investigate the performance of a cold crucible employed for the melting of refractory material, which has a very high melting temperature of about 3000 K, a computational analysis of the coupled electro-magnetic field, heat transfer, and fluid flow is carried out. Governing differential equations, basic numerical methods, computational model, and the results of the simulation of cold crucible melting are discussed. Computational Analyses were performed for the melting of corium, which is a mixture of UO_2 and ZrO_2, and pure zirconia. By comparing the analysis results with the experimental data, it is shown that the proposed computational model reasonably predicts the fundamental characteristics of a cold crucible melting.