Development And Performance Evaluation Of semiconductor Thermo Electric Generators for High Temperature Applications

Abstract

Concerns about climate change and the growing global energy demand in recent newlinedecades have made the search for sustainable and renewable energy sources essential. newlineThe conversion of heat energy from many sources, particularly industrial heat waste newlineconversion at high temperatures, is the main emphasis of the research. TEG is the most newlinepromising of the others in terms of efficiently converting waste heat into energy. A newlinepromising energy harvesting device that supports the global shift to cleaner energy newlinesources is the thermoelectric generator (TEG), which uses the Seebeck effect to directly newlinetransform waste heat into power. The selection of thermoelectric materials has a major newlineimpact on the effectiveness and viability of TEGs, especially for high-temperature newlineapplications in the industrial and aerospace sectors. newlineTargeting high-temperature settings (up to 1000 K), this thesis focuses on the design, newlinedevelopment, and performance assessment of TEGs employing doped silicon as the newlinethermoelectric material at the core. Because of their high figure of merit (ZT) at room newlinetemperature and mid-temperature, conventional thermoelectric materials such as newlinebismuth telluride (Biand#8322;Teand#8323;) and lead telluride (PbTe) dominate commercial TEGs. newlineHowever, their use in elevated temperature zones is limited by their cost, limited newlinethermal stability, and environmental toxicity. On the other hand, silicon is a desirable newlineoption for high-temperature and sustainable thermoelectric applications due to its newlineabundance, non-toxicity, CMOS compatibility, and mechanical durability. newlineThis study examined the function of thermoelectric generators (TEGs) in sustainable newlineenergy recovery and conducted a thorough literature assessment along with a thorough newlineanalysis of the national and international energy concerns. The focus is on new newlinedevelopments in high-temperature TEGs, especially silicon-based materials, material newlineselection, and classification by temperature ranges. newline