Analytical and Experimental Validation of Electromagnetic Simulations Using COMSOL®, re Inductance, Induction Heating and Magnetic Fields

• This paper presents a snap shot of experimental work, which has been conducted at NTNU on billet heating with induction coils. A significant volume of experimental data have been collected for coils running with up to 0.2T: high accuracy Hall probe readings (+/-1%), metal conductivity (+/-0.5%), and heat generation (+/- 4%) have been collected.Results are analyzed using newly developed analytical models and COMSOL 2D axial symmetric models. Agreement is exceptionally good for both magnetic field strength/distribution and induced heating in the aluminium billets.

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