Mathematics · IC Engines
A 4-stroke, 4-cylinder diesel engine running at 1200 RPM develops 70 kW brake power. The given parameters are: Brake thermal efficiency = 30% Calorific value of fuel = 42,000 kJ/kg Engine bore = 150 mm Engine stroke = 120 mm Air-fuel ratio = 15 : 1 Mechanical efficiency = 0.85 Density of air = 1.15 kg/m3 Calculate the brake mean effective pressure (in bar).
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