Question: A 4-cylinder, two-stroke cycle petrol engine develops (30 mathrm{~kW}) at (2500 mathrm{rpm}). The mean effective pressure on each piston is 8 bar and mechanical efficiency

A 4-cylinder, two-stroke cycle petrol engine develops $30 \mathrm{~kW}$ at $2500 \mathrm{rpm}$. The mean effective pressure on each piston is 8 bar and mechanical efficiency is $80 \%$. Calculate the dia and stroke of each cylinder if stroke to bore ratio is 1.5. Also calculate the fuel consumption of the engine, if brake thermal efficiency is $28 \%$ and calorific value of fuel is $43900 \mathrm{~kJ} / \mathrm{kg}$.

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