Combustion engines, the engines in gas-powered cars, only use a quarter of the fuel's potential energy while the rest is lost as heat through exhaust. Now, a study demonstrates how to convert exhaust ...

The thermoelectric effect, or Seebeck effect, refers to the direct conversion of a temperature difference between two electrical conductors or semiconductors into an electrical voltage. When the sides ...

Researchers design and test a waste-heat recovery system, illustrated here, that attaches to a car tailpipe and converts heat from exhaust into energy. The fanned grooves on the outside of the pipe ...