Enhancement the Frequency of a New Oscillating Thermomagnetic Generator

Abstract

In this study, we try to improve the performance of an oscillating thermomagnetic generator by increasing its frequency. The generator operates due to magnetic materials losing their susceptibility and becoming paramagnetic when they reach their Curie temperature (TC). The generator consists of a ferromagnetic material moving under the influence of opposing forces. A permanent magnet (PM) and a spring generate the opposing variable forces to ensure the sustainability of the movement. The generator was designed to dissipate heat from a source as well as generate an induced electric pulse. What limits this generator is the relatively time-consuming delay during the cooling of the metal, restoring its magnetic susceptibility and restoring the PM force. This study shows the effect of shifting the spring equilibrium position to help the PM force to improve the frequency. COMSOL Multiphysics 5.2a software is used to simulate the system and display the results.