Heard At The Show: Snippets from SAE 2009 World Congress
Green Car Congress
APRIL 30, 2009
For every kJ of chemical energy in the fuel for a spark ignition internal combustion engine, 73 % is sacrificed to chemical and thermal losses. Only 22% remains to power the vehicle. the 4 cylinder engine may go from a 20% take rate to a 25% take rate). Cash for Clunkers. Braking losses add another 6%.
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