Converting Waste Heat of Vehicles Exhaust Gases into a Useful Source of Energy

Waste heat from car exhaust is 20%-40% of the total heat lost from engine. The aim of this study is to find a new technique that could be used to convert the lost heat from exhaust to a useful source of energy. A useful source of energy can be either heat or power. It has been found that the range of the system efficiency is varied from 30%-37%, which depends on surface temperature that is in contact with the hot side of the thermoelectric generators. Furthermore, the minimum power generated by the thermoelectric generators is equal to 21 Watt.