Question

____________ of fuel energy is wasted as heat energy to outgoing exhaust gases.

(a) 7%

(b) 9%

(c) 16%

(d) 38%

I have been asked this question by my college professor while I was bunking the class.

This interesting question is from Turbocharging in portion Supercharging of IC Engine

Answer 1

Answer: (d) 38%

Explanation: Around 38% of the fuel energy is typically wasted as heat energy to the outgoing exhaust gases in an internal combustion engine. This is due to the high temperature of the exhaust gases after combustion, which carries away a significant portion of the energy that was not converted into useful work. This heat loss is a major factor in the overall thermal efficiency of an engine.