A four-cylinder, four-stroke, spark-ignition engine operates on the ideal Otto cycle with a compression ratio of 11 and a total displacement volume of 1.8 L. The air is at 90 kPa and 50°C at the beginning of the compression process. The heat input is 1.1 kJ per cycle per cylinder. The gas constant of air is R = 0.287 kJ/kg-K and use constant specific heats with cv = 0.821 kJ/kg-K, Cp = 1.108 kJ/kg-K, and k = 1.35. Determine the net work per cycle per cylinder and the thermal efficiency of the cycle. 0.3408 ✪ kJ. The net work per cycle per cylinder is The thermal efficiency of the cycle is 31 x

Elements Of Electromagnetics
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A four-cylinder, four-stroke, spark-ignition engine operates on the ideal Otto cycle with a compression ratio of 11 and a total
displacement volume of 1.8 L. The air is at 90 kPa and 50°C at the beginning of the compression process. The heat input is
1.1 kJ per cycle per cylinder. The gas constant of air is R = 0.287 kJ/kg-K and use constant specific heats with cv = 0.821
kJ/kg-K, Cp 1.108 kJ/kg-K, and k=1.35.
Determine the net work per cycle per cylinder and the thermal efficiency of the cycle.
0.3408
kJ.
The net work per cycle per cylinder is
The thermal efficiency of the cycle is
31 *
Transcribed Image Text:A four-cylinder, four-stroke, spark-ignition engine operates on the ideal Otto cycle with a compression ratio of 11 and a total displacement volume of 1.8 L. The air is at 90 kPa and 50°C at the beginning of the compression process. The heat input is 1.1 kJ per cycle per cylinder. The gas constant of air is R = 0.287 kJ/kg-K and use constant specific heats with cv = 0.821 kJ/kg-K, Cp 1.108 kJ/kg-K, and k=1.35. Determine the net work per cycle per cylinder and the thermal efficiency of the cycle. 0.3408 kJ. The net work per cycle per cylinder is The thermal efficiency of the cycle is 31 *
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