Metal Internal Combustion Engines
Where Does The Energy In The Fuel Go?
Only about 15% of the energy from the fuel you put in your tank gets used to move your car down the road or run useful accessories, such as air conditioning. The rest of the energy is lost to engine and driveline inefficiencies and idling.
Therefore, the potential to improve fuel efficiency with advanced technologies is enormous [Source: http://www.fueleconomy.gov/feg/atv.shtml].
Energy Losses (70 to 72%):
(i) Thermal [i.e. Water-Jacket/Radiator, Exhaust Heat, etc] – 60 to 62%
(ii) Combustion – 3%
(iii) Pumping – 4%
(iv) Friction – 3%
[Source: US Dept of Energy – http://www.fueleconomy.gov/feg/atv.shtml]
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COMBUSTION ENGINE VERSUS ELECTRIC ENGINE (Airbus.com):
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