Modeling of Inductively Heated Copper Cylinder with Water Cooling Based on Turbulent Flow and Instantaneous Mixing

Abstract

This paper represents the model which shows the temperature distribution of inductively heated copper cylinder after 10 hours with active cooling by making the coil conductors hollow shape with circulating water flow inside. It was observed that for modest flow rates, the coolant flow becomes highly turbulent which makes the heat transfer between conductor and fluid very efficient. This model illustrates a simplified way of modeling water cooling based on the assumption of turbulent flow and instantaneous mixing. For mechanical support and electrical insulation, the cylinder and coil are embedded in FR4 composite material. The current in the coil has amplitude of 2kA while the average temperature of copper cylinder has increased from 293 K to 346 K. Using this model the temperature evolution in the center of the copper cylinder and in the cooling channel is also observed.