Numerical analysis and verification of internal heat source in a pebble bed heated by electromagnetic induction in HTS molten salt high temperature test loop

BackgroundThe pebble bed heat transfer experimental facilities in the high temperature test loop of HTS (Heat Transfer Salt) molten salt is designed to study the heat transfer characteristics of molten salt and fuel pebble. The intermediate frequency induction heating is adopted to provide the internal heat source in the graphite pebble bed, which simulates the heat released by the fuel pebbles in the core of the MSRs.PurposeThis study aims to get better heating effect by analyzing the internal heat source of electromagnetic induction heating.MethodsThe finite element method was used to numerically simulate the electromagnetic induction heating of the experimental device. By analyzing the distribution of eddy current power in the experimental device under different number of graphite pebbles and coil parameters, the influence law of different design parameters on the electromagnetic induction heating performance was obtained and compared with the experimental results.ResultsThe simulation results show that th