COMSOL-based optimization of glycerine heating process for heat shrink tubing

Abstract

In this paper, the resistance heating in glycerine heating expansion is optimized to the electromagnetic heating method, which improves the heating efficiency. First, the electromagnetic heating theory is analyzed to examine the impact of various factors on heating. This is followed by the design of the electromagnetic heating coil winding, which involves a finite element simulation analysis of the electromagnetic heating coil at the bottom of the oil tank to determine the optimal winding scheme. Finally, the experimental device for determining the thermal efficiency of the electromagnetic heating system achieved an efficiency of approximately 85%. The insulation consumption of electricity accounts for 19% of the electrical energy used for heating, indicating that the thermal efficiency of the electromagnetic heating system and insulation performance are higher than those of the original heating system.