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Thermal Analysis of Electromagnetic Induction Heating for Cylinder-Shaped Objects
Amir Komeili Birjandi1, Prashanta Dutta1
1School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington, USA.
Electrophoresis
|January 20, 2025
Summary
This study presents an analytical solution for transient heat transfer in 3D cylindrical objects undergoing induction heating. The findings highlight the significant impact of temperature-dependent material properties on thermal response during this efficient heating process.
Area of Science:
- * Physics
- * Materials Science
- * Heat Transfer
Background:
- * Induction heating offers a clean and efficient method for material heating using electromagnetic fields.
- * Transient heat transfer in three-dimensional (3D) cylindrical objects under induction heating requires sophisticated analytical solutions.
- * Conventional heating methods often lack the dynamic thermal boundary conditions inherent in induction heating.
Purpose of the Study:
- * To develop and present an analytical solution for transient heat transfer in a 3D cylindrical object subjected to induction heating.
- * To investigate the influence of variable material properties on the thermal response.
- * To analyze the effects of heat transfer coefficient and AC current parameters (frequency, amplitude) on transient heat diffusion.
Main Methods:
- * Solved a simplified form of Maxwell's equations to determine internal heat generation by calculating current density distribution.
- * Employed Green's function method, utilizing separation of variables for the unsteady heat equation in multiple dimensions and time.
- * Developed an innovative algorithm to incorporate temperature-dependent material properties into the analytical framework.
- * Validated the analytical temperature solution against experimental data under identical operating conditions.
Main Results:
- * An analytical solution for transient heat transfer in 3D cylindrical induction heating was successfully derived and verified experimentally.
- * Temperature-dependent material properties were found to significantly influence the thermal response of the material.
- * The study analyzed the transient heat diffusion behavior under varying heat transfer coefficients and AC current parameters.
Conclusions:
- * The developed analytical solution provides a robust method for analyzing transient heat transfer in induction heating of cylindrical objects.
- * Accounting for temperature-dependent material properties is crucial for accurate thermal response prediction in induction heating.
- * The dynamic nature of thermal boundary conditions in induction heating necessitates advanced analytical approaches, as demonstrated in this study.
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