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how to make thermo electric generator from waste heat of IC engine? Answered

thermo electric generator converts heat into electricity. but small power is produced in this way for usage.


Depending on how you intend to use the energy you could be better off using the exhaust to run a turbine, or heat water to make steam.

Yes, thermoelectrics are either very low efficiency, using metal junctions, or low efficiency, using Peltier cells, but Pcells melt at much lower temperatures than a typical exhaust system.

They also work off of delta T so to get any sort of reasonable efficiency out of them you need to cool the other side. I've seen someone manage to just charge a cell phone from a motorcycle but the combination of the exposed engine block and a heat sink allowed for good convective cooling on the back side. That would be harder to accomplish in a car.