A Comprehensive Review on Thermoelectric Generator for Energy Harvesting

Abstract

The new technologies of energy saving and emission reduction is a greatest challenge to the industries. Increase in environmental pollution and energy demand requires clean source of energy. Thermoelectric power generation is the best solution for the clean source of energy. Thermoelectric power generation through waste heat recovery includes vehicle exhaust waste, industrial waste. In order to utilize the waste heat, the efficient TEG should be used which requires (i) TEG materials with less cost to improve its performance, (ii) TEG materials with improved ZT values, (iii) TEG material to work with high temperature difference. This review begins with the principle of thermoelectric generator, power calculation, present and future thermo electric materials, application of TEG in various sectors