Harnessing the Waste Heat Energy of the Vehicle Engines A very large part of the fuel energy that is consumed by the vehicle engines (and other combustion engines) is wasted in the form of heat which has to be removed perforce by forced cooling. It should be possible to use this heat energy, instead of wasting it, in several innovative ways to add value to the vehicle and increase the overall fuel efficiency of the vehicles by taking over some of the functions which presently need...