Enhancing Energy Efficiency of Thermomagnetic Generators: A Comprehensive Study on Frequency and Heat Dissipation

Abdulrahman Homadi and Abd Alhamid Rafea Sarhan ()
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Abdulrahman Homadi: School of Physical Sciences, University of Arkansas at Little Rock, Little Rock, AR 72204, USA
Abd Alhamid Rafea Sarhan: Department of Biomedical Engineering, University of Melbourne, Melbourne, VIC 3052, Australia

Mathematics, 2024, vol. 12, issue 8, 1-17

Abstract: This study explores the design and optimization of thermomagnetic generators with a primary emphasis on enhancing energy efficiency. The core objectives revolve around improving power generation and efficient heat dissipation. We conducted an extensive investigation, systematically varying parameters such as dimensions, coil turns, and material properties, including temperatures and magnetization. At the heart of this research lies the utilization of the variable magnetic susceptibility of ferromagnetic–paramagnetic materials within distinct temperature zones. Gadolinium (Gd) was selected due to its unique Curie temperature (TC) closely aligned with room temperature. The Gd disk’s motion serves a dual purpose—acting as a heat conveyor from source to sink and inducing voltages. The synergy between a copper wire coiled around the Gd disk and the magnetic field generated by a permanent magnet (PM) facilitates voltage induction. The dynamic motion of the Gd disk, driven by changes in net forces (permanent magnet force, gravity force, and spring force), powers this energy conversion process. This versatile technique holds promise across various applications, especially in scenarios characterized by significant waste heat, such as engines and solar panels. Our multifaceted optimization approach not only enhances our understanding of thermomagnetic generators but also underscores their potential as sustainable and efficient contributors to energy solutions.

Keywords: thermomagnetic generator; gadolinium (Gd) disk; power generation; heat dissipation; optimization study (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2024
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