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  3. 1) a four-stroke diesel engine has a piston diamet

1) A four-stroke diesel engine has a piston diameter of 16.5 cm and a stroke of...

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Mechanical Engineering

1) A four-stroke diesel engine has a piston diameter of 16.5 cmand a stroke of 27 cm. The compression ratio is 14.3, the cut-off4.23% of the stroke and the mean effective pressure 4.12 bar. Theengine speed is 264 rev/min and the fuel consumption is 1.076 kg ofoil per hour, having a calorific value of 39150 kJ/kg. Calculatethe relative efficiency of the engine 2). A diesel engine has abrake thermal efficiency of 30%. If the calorific value of fuelused in 10000 kcal kg, calculate the brake specific fuelconsumption

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