Induction Heating Technology Applied in Heat Transfer Characteristics Study of Molten Oxide Pool

The applicability of cold-crucible induction heating technology to the experimental study on the heat transfer characteristics of a molten oxide pool was analyzed in this paper. Then improvements on traditional cold-crucible structure were proposed. The intensity and distribution of internal Joule heat and Lorentz force of the improved cold-crucible were analyzed with numerical simulation method. The analysis results show that the distribution of internal Joule heat is more homogeneous with lower electric power frequency, and the Joule heat amount accounts for a smaller share of the total power, which will be benefit to the heat flux measurement of the side wall of the pool. Besides, when compared with the driving force of natural convection in the pool, the Lorentz force can be ignored, which means the Lorentz force has little impact on the heat transfer and the flow behavior of the molten pool.