Optimal Distribution of Field Coils for Rotational Induction Heating of Cylindrical Workpiece

0334722 - ÚT 2010 RIV SK eng C - Conference Paper (international conference)
Donátová, M. - Karban, P. - Doležel, Ivo
Optimal Distribution of Field Coils for Rotational Induction Heating of Cylindrical Workpiece.
Fifth International Scientific Symposium Elektroenergetika 2009. Košice: Technical University of Košice, 2009, s. 63-68. ISBN 978-80-553-0237-9.
[International Scientific Symposium ELEKTROENERGETIKA 2009 /5./. Stará Lesná (SK), 23.09.2009-25.09.2009]
R&D Projects: GA ČR(CZ) GA102/07/0496
Institutional research plan: CEZ:AV0Z20570509
Keywords : induction heating * nonferromagnetic ingot * integrodifferential approach
Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering
http://ee2009.fei.tuke.sk

Induction heating of cylindrical billets by their rotation in uniform magnetic field seems to be a prospective technology characterized by higher efficiency than heating in static systems. The paper deals with numerical modeling of the process with the aim to find the optimal distribution of the field coils under the condition of the same magnetomotive force. Magnetic field in the system (together with the distribution of the volume Joule losses and drag torque) is determined by the method of integrodifferential equations developed and programmed by the authors. The temperature field is calculated by the classical finite element method. The mechanical transient accompanying the startup of rotation is also taken into account. The methodology is illustrated on a typical example whose results are discussed.
Permanent Link: http://hdl.handle.net/11104/0179378