Presentation Date: Feb 14, 2026
AGSA Abstract
The global energy transition toward renewable systems necessitates sustainable technologies that can harness otherwise wasted thermal energy. This study proposes and analyzes a thermoelectric energy conversion system designed for low-voltage battery charging applications using readily available heat sources. The system integrates Seebeck, Peltier, and Thomson thermoelectric effects to convert heat from a conventional combustion source into electricity for charging a 6V battery. The design utilizes eight TEC1-12726 Peltier modules, two mechanically coupled DC motors for electromechanical conversion, and an electronic rectification and voltage regulation circuit for stable power delivery. Simulations were conducted using Proteus Professional and SolidWorks CAD to model and simulate component behavior and mechanical alignment. Experimental validation demonstrated that a controlled thermal gradient can effectively drive continuous electrical output sufficient for charging small-scale energy storage systems. The proposed setup exemplifies an efficient, low-cost, and modular approach to energy harvesting suitable for off-grid and rural electrification scenarios. Beyond its immediate functionality, the system highlights the potential of thermoelectric modules in hybrid energy systems, where waste heat recovery can complement solar, biomass, or mechanical energy sources, thereby enhancing overall energy efficiency. The findings encourage further research into materials with higher thermoelectric efficiency, improved heat sink design, and smart regulation circuits to optimize performance and scalability.
