It takes a person 10 hours to complete a trip in a car that has a...

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It takes a person 10 hours to complete a trip in a car that has a 4-stroke Diesel cycle engine equipped with a supercharger, during which 120 L of diesel is consumed. The diesel fuel has a heating value of 44,000kJ/kg and a density of 0.85 kg/L. The bore and stroke of the engine are related as S=1.2B. The engine speed is assumed to be 3500 RPM during the trip. The air-fuel ratio is AF-19 and the combustion efficiency is 98%. The cylinder condition at the start of the compression stroke is 120 kPa and 45 °C. Due to the limitation of the material strength, the average piston speed should be no more than 10 m/s. The compression ratio is 17 and the cut-off ratio is 2. Determine (i) (ii) (iii) (iv) the displacement of this engine. the possible minimum number of cylinders in this engine. the indicated mean effective pressure of the engine. [kPa] the total mass of the exhaust gases discharged by the engine during the trip. It takes a person 10 hours to complete a trip in a car that has a 4-stroke Diesel cycle engine equipped with a supercharger, during which 120 L of diesel is consumed. The diesel fuel has a heating value of 44,000kJ/kg and a density of 0.85 kg/L. The bore and stroke of the engine are related as S=1.2B. The engine speed is assumed to be 3500 RPM during the trip. The air-fuel ratio is AF-19 and the combustion efficiency is 98%. The cylinder condition at the start of the compression stroke is 120 kPa and 45 °C. Due to the limitation of the material strength, the average piston speed should be no more than 10 m/s. The compression ratio is 17 and the cut-off ratio is 2. Determine (i) (ii) (iii) (iv) the displacement of this engine. the possible minimum number of cylinders in this engine. the indicated mean effective pressure of the engine. [kPa] the total mass of the exhaust gases discharged by the engine during the trip.

Answer rating: 100% (QA)

Determining Engine Parameters i Displacement Calculate the fuel mass Fuel mass Fuel volume Density 120 L 085 kgL 102 kg Calculate the air mass per cyc... View the full answer