Energy and Exergy Analysis of Thermoelectric Generator Installed on Diesel Engine Exhaust Heat Recovery System

Thermoelectric generators are a viable solution for capturing and producing power from the energy dissipated in vehicle exhaust.Exergy analysis facilitates the identification of irreversible losses during the transmission of exhaust energy.This research is essential for comprehending and developing methods for exhaust thermoelectric generators.This study provided a theoretical framework to analyse the operation of a thermoelectric generator exhaust utilizing the principles of thermodynamics.The practical and theoretical analysis assessed the energy and exergy of thermoelectric generator power generation utilizing the waste heat from diesel engine exhaust.Four TEG type 12706 units were mounted on the diesel engine exhaust muffler.The voltage, current, power output, and temperatures of the cold and hot sides were recorded at an engine speed of 2200 rpm and a brake-specific fuel consumption of 0.67 kg/hr.The peak voltage and current produced were 17.01 volts and 15.49 amperes, respectively.The largest temperature differential was 111℃, while the ambient temperature was 11℃.The analytical results indicate that conversion efficiency, exergy efficiency, and exergy destruction increased with rising temperatures on the hot side and ambient temperature.The conversion efficiency, exergy efficiency, and exergy destruction increased with the current and voltage output.