Simulation Analysis of Induction Heating as a Self-Healing Method on Asphalt

Abstract

Asphalt is a self-healing material at a specific temperature. The induced heating-healing of asphalt has been developed in the last few decades; an inductive asphalt can be created by adding inductive material. This paper aims to predict the performance of induction heating as a self-healing method on asphalt. This numerical simulation is carried out to obtain a suitable induction heater configuration. Numerical simulation is carried out in two stages, electrical analysis with ANSYS Electronics Desktop software and thermal analysis with ANSYS Transient Thermal Analysis. A cylindrical inductive asphalt sample is modeled and subjected to an electromagnetic field by a coil flowed by a high-frequency AC. As a result, a comparative temperature distribution is obtained by several current and frequency variations. The difference in current magnitude and frequency that flowed in the coil affects asphalt's heating performance and healing capacity. An increase in the frequency configuration results in a more significant increase in temperature than increasing the current magnitude in the coil.