A certain gasoline engine has an efficiency of 30%; that is, it converts into useful work 30%
Question:
A certain gasoline engine has an efficiency of 30%; that is, it converts into useful work 30% of the heat generated by burning a fuel.
(a) If the engine consumes 0.80 L/h of a gasoline with a heating value of 3.5x104 kJ/L, how much power does it provide? Express the answer both in kW and horsepower.
(b) Suppose the fuel is changed to include 10% ethanol by volume. The heating value of ethanol is approximately 2.34x104 kJ/L and volumes of gasoline and ethanol may be assumed additive. At what rate (L/h) does the fuel mixture have to be consumed to produce the same power as gasoline?
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a Heat Generated Heating Value per liter x Volume flow rate 35 x 10 4 kJL x 08 Lh 28 x 10 4 kJh ...View the full answer
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Related Book For 
Elementary Principles of Chemical Processes
ISBN: 978-1119498759
4th edition
Authors: Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
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