WASTE HEAT RECOVERY BY USING THERMOELECTRIC GENERATOR

This paper explains how to convert the lost energy through exhaust system in internal combustion engines “ICE” to electric energy by using thermoelectric generators "TEG" with the benefit of the equipment's which are already existed in most of the internal combustion engines such as water pump, heat exchanger, and exhaust system. The miniature cooler system which is designed in the laboratory to execute the experiment is similar to combustion engines water coolant system to keep the cold side in “TEGs” fixed on ambient temperature. The heat source was applied on the hot side to “TEGs” is came from small candles where the “TEGs” consist of “Bismuth Telluride” material as N-P stripes attached thermally in parallel and electrically in series where it inserted between two porcelain layers. The electric current generated from “TEGs” is direct current “DC” the experiment showed the value of electrical current was proportional to the temperature difference between "TEGs" sides.