Answer / mule

efficincy of ic enginemainly affected by 42 persent heat
loss in exaust gasses & 28 persent heat loss in cooling
system of the engine. ferther it includes friction +
transmition etc.

Answer / f.babu

heat lose...in ic engine with water cooled...has lose 40%
energy to he

Answer / karthick

heat carried away by the cooling water in water jacket from
the engine cylinder wall is the major loss in an ic engine

Answer / banke

convective heat loss to cylinder wall and improper fuel-air
ratio

Answer / atanu biswas

knocking and calibaration.

Answer / ranjit

FRICTION LOSS

Answer / pjagan89

Friction between piston and cylinder results in major loss
in efficiency.

Answer / praveen

The major loss is "heat loss". Efficiency of an IC engine
wrt to the carnot efficiency i.e. max possible efficiency.
Since we are unable to harness all the heat produced into
work, efficiency is very low.

Other reasons of loss of efficiency are as above, valve
timing, friction and all those. but the major cause is heat
loss.

Answer / palash bolia

Major energy loss occurs due to energy losses in exhaust,coolant,radiation etc which finaaly yields Indicated Power

Answer / sambasiva rao

cylinder piston friction

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