Question: A six cylinder four stroke petrol engine develops (300 mathrm{~kW}) (BP) at (2500 mathrm{rpm}). The stroke to bore ratio is 1.25. The mean effective pressure

A six cylinder four stroke petrol engine develops $300 \mathrm{~kW}$ (BP) at $2500 \mathrm{rpm}$. The stroke to bore ratio is 1.25. The mean effective pressure on each piston is 9 bar and mechanical efficiency of the engine is $80 \%$. Indicated thermal efficiency is $30 \%$. Calculate $(a)$ stroke and bore of the engine,

(b) fuel consumption. Take C.V. of petrol equals to $41900 \mathrm{~kJ} / \mathrm{kg}$.

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