THERMOELECTRIC WASTE HEAT RECOVERY SYSTEM

Abstract: Thermoelectric Waste Heat Recovery Systems (TWHRS) are gaining significant attention due to their ability to convert waste heat directly into electrical energy using thermoelectric generators (TEGs). In many industrial processes, automobiles, and power generation systems, a large amount of heat energy is lost to the environment. Recovering this wasted thermal energy can improve overall system efficiency and reduce fuel consumption and environmental pollution.

The present work focuses on the design and analysis of a thermoelectric waste heat recovery system using thermoelectric modules for converting exhaust heat into usable electrical power. The study investigates the major components, working principles, heat transfer mechanisms, and performance characteristics of the system. Parameters such as temperature difference, heat sink performance, module arrangement, and electrical output were analyzed.

Experimental observations indicate that increasing the temperature gradient across thermoelectric modules significantly improves voltage generation and power output. The developed system demonstrates improved energy efficiency and sustainable power generation from otherwise wasted thermal energy.

Keywords: Thermoelectric Generator, Waste Heat Recovery, Seebeck Effect, Energy Efficiency, Heat Recovery System, Sustainable Energy.