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

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SYSNO ASEP 0334722 C - Konferenční příspěvek (mezinárodní konf.) D - Článek ve sborníku Optimal Distribution of Field Coils for Rotational Induction Heating of Cylindrical Workpiece Donátová, M. (CZ) Karban, P. (CZ) Doležel, Ivo (UT-L) RID Fifth International Scientific Symposium Elektroenergetika 2009. - Košice : Technical University of Košice, 2009 - ISBN 978-80-553-0237-9 s. 63-68 6 s. CD ROM - CD ROM International Scientific Symposium ELEKTROENERGETIKA 2009 /5./ 23.09.2009-25.09.2009 Stará Lesná SK - Slovensko EUR eng - angličtina SK - Slovensko induction heating ; nonferromagnetic ingot ; integrodifferential approach JA - Elektronika a optoelektronika, elektrotechnika GA102/07/0496 GA ČR - Grantová agentura ČR AV0Z20570509 - UE-C, UT-L (2005-2011) 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. Ústav termomechaniky Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 2010