Field Distributions in an Inductively Heated Nonmagnetic Billet of Finite Length

A model is presented for a simple induction-heating system consisting of a coil constructed from a rectangular conductor and charged with a nonmagnetic billet of the same length. The unique feature of the model is that prediction for losses, efficiency of heating, power factor, and temperature distribution are possible from a knowledge of the coil voltage, coil and billet geometry, and materials parameters. Results from a sample application are compared with experimental data obtained in the course of the study.