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A three-dimensional mathematical model of a three-phase induction heat generator with a load in the form of a ferromagnetic conductive tubes beam has been developed on the basis of the secondary method. The magnetic system symmetry of the heat generator is taken into account, which significantly reduced the search area of unknown electromagnetic field secondary sources densities. References 5, figures 3.

A comparative analysis of the results of numerical modelling of electrophysical processes occurring in the middle of a cylindrical inductor with loading in the form of a beam of ferromagnetic pipes, using various tube plates on the ends of the loading, which is a component of the ecologically clean technology of processing biomass into fuel, is carried out. According to the results of computer simulation, it was found that the construction of "snowflakes" in comparison with round ferromagnetic boards allows reducing losses in them, increasing the capacity of the induction heater, and also passing the coolant, both from the inside of the pipes and from the outside.