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The Calculation of Induction Heating System with Coaxial Cylinders

A new type of induction device for heating liquids and gases in electromagnetic fields is considered in this article. The constructive scheme of the heater includes an inductor and external coaxial cylinders. Based on the mathematical description of electric and magnetic processes the equivalent scheme is constructed. To perform analytical calculations, the induction system is replaced by a cascade equivalent circuit. The results obtained allow to determine the distribution of the input power between the cylinders and to evaluate the energy efficiency of the considered heaters.