Numerical modelling of heat transfers between inductively heated metallic and dielectric phases
ISSN: 0332-1649
Article publication date: 6 February 2020
Issue publication date: 11 March 2020
Abstract
Purpose
Heating with a low-frequency induction is a key phenomenon in a process dedicated to the treatment of nuclear wastes. This paper aims to present a step of the numerical model being developed to study this process.
Design/methodology/approach
A hydrodynamic model for the processing of a liquid charge consisting of a metallic phase and a dielectric one is developed based on a volume of fluid (VOF) approach coupled with electromagnetic calculations. The latter allows one to calculate the distribution of the Joule heating in the setup and radiative heat exchange inside the crucible is accounted with a surface-to-surface (S2S) model coupled with VOF.
Findings
Numerical results are compared with the measures obtained on the prototype of the process. The results are in good agreement but the model needs to be improved to consider the varying viscosity of the glass.
Originality/value
The usage of a S2S radiation model coupled to the VOF model is not common for studies of materials melted by electromagnetic induction. This paper demonstrates the feasibility of this approach.
Keywords
Acknowledgements
This work was financially supported by the Investments for the future programme of the French Government operated by the French National Radioactive Waste Management Agency (Andra), by ORANO (former AREVA), and by the CEA.
Citation
Bourrou, R., Budenkova, O., Lafon, C. and Gagnoud, A. (2020), "Numerical modelling of heat transfers between inductively heated metallic and dielectric phases", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 39 No. 1, pp. 108-116. https://doi.org/10.1108/COMPEL-05-2019-0218
Publisher
:Emerald Publishing Limited
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