• Numerical Analysis of Induction Heating of Wire
• Author  :  Ishant Jain, J K Saha and S. K. Ajmani
• Pages   :  72-78
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• Abstract

In the present work a numerical study was carried out to study the induction heating phenomena in a wire moving inside a long tunnel furnace. A mathematical model based on the heat transfer was developed in ‘C’ programming. The skin effect of the induction heating phenomenon over the periphery of the cylindrical wire was considered and applied in the form of a heat source boundary condition at the surface and inside the wire. Plant trial was conducted using a 60 KW wire heating induction furnace and the complete setup of the induction heating of moving wire was replicated. Four successful plant trials were conducted for Ф3.5 mm wire with different wire speed. Tensile testing of the specimen was performed to ascertain the desired temperature range between the center and the surface. The model predicted temperature profile obtained for different line speed of the wire was validated against the trial data and a close agreement between the model and the trial temperature profiles was found.

Keywords: Wire, Induction heating, Skin effect, Modelling, wire heating, finite difference method

Article published in International Journal of Thermal Technologies, Vol.4, No.2 (June- 2014)