Honda Motor of Japan is researching the use of a Rankine
cycle-cogeneration unit that is designed to raise the efficiency of
hybrid vehicles and could eventually have application in motorhomes as
well. It recaptures the engineâ€™s waste exhaust heat, which it then
converts to steam and then electricity to recharge the batteries.
The system employs a high-pressure water pump to force water
into an evaporator that creates steam, using the reaction of a catalyst.
The steam is then sent to an expansion tank where it turns an electric
generator that charges the batteries.