Approximate mathematical models of electromagnetic and thermal processes at induction heating of metal strips

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Date

2011

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Publishing House of Lviv Polytechnic National University

Abstract

Electromagnetic and thermal processes in a moving conducting strip have been considered on the base of a simplified mathematical model. The following features have been taken into account: non-uniformity of eddy current and Joule’s heat distributions, heat transfer in directions across the strip and along its surface. The temperature has proved to become homogeneous through-thickness for typical modes of induction heating. On the contrary, the heat transfer along the surface is insignificant and, therefore, it is possible to consider the process adiabatic. Estimations of characteristic parameters of the process have been made for aluminum, brass and steel strips. На основі спрощеної математичної моделі розглянуто електромагнітні та теплові процеси в рухомій електропровідній смузі. При індукційному нагріванні тепло перенос теплопровідністю уздовж поверхні смуги виявляється незначним, і процеси у цьому напрямку можна розглядати як адіабатичні. Для металевих смуг з алюмінію, латуні і сталі зроблено оцінки характерних параметрів процесів.

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Keywords

high-frequency induction heating, metal strip, mathematical models, electromagnetic and heat-transfer parameters

Citation

Mazurenko I. Approximate mathematical models of electromagnetic and thermal processes at induction heating of metal strips / Iryna Mazurenko, Yuriy Vasetskyi // Computational Problems of Electrical Engineering. – 2011. – Volume 1, number 1. – P. 45–50. – Bibliography: 4 titles.

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