An Efficient Method of Calculating Parameters for Induction and Resistance Heating Installations with Magnetic Loads

An efficient method of solving one-dimensional linear or nonlinear induction and resistance heating problems is described. Previous methods have formulated these problems in terms of matrix equations that can require a considerable amount of computer storage during solution. The method described avoids the matrix formulation. Rather, the solution proceeds in a step-by-step fashion so that when fields are calculated at a point within the conductor, the previously calculated fields at other points are all utilized. In this sense, the solution requires only a minimum of storage capacity and is particularly appropriate for small desk calculators. The linear hollow cylinder problem has been programmed for the HP-25 had calculator.