A six cylinder four stroke petrol engine develops (300 mathrm{~kW}) (BP) at (2500 mathrm{rpm}). The stroke to
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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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