A four-cylinder, four-stroke, 2.2-L gasoline engine operates on the Otto cycle with a compression ratio of 12. The airis at 100 kPa and 60°C at the beginning of the compression process, and the maximum pressure in the cycle is 8MPa. The compression and expansion processes may be modeled as polytropic with a polytropic constant of 1.3.Take Cy = 0.716 kJ/kg K, C, = 1.0 kJ/kg K. Determine the:1. temperature at the end of the compression process.2. Pressure at end of the compression process3. net work output.4. thermal efficiency.5. mean effective pressure. A four-cylinder, four-stroke, 2.2-L gasoline engine operates on the Otto cycle with a compression ratio of 12. The airis at 100 kPa and 60°C at the beginning of the compression process, and the maximum pressure in the cycle is 8MPa. The compression and expansion processes may be modeled as polytropic with a polytropic constant of 1.3.Take cy = 0.716 kJ/kg K, c, = 1.0 kJ/kg K. Determine the:1. temperature at the end of the compression process.2. Pressure at end of the compression process3. net work output.4. thermal efficiency.5. mean effective pressure.

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Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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A four-cylinder, four-stroke, 2.2-L gasoline engine operates on the Otto cycle with a compression ratio of 12. The air is at 100 kPa and 60°C at the beginning of the compression process, and the maximum pressure in the cycle is 8 MPa. The compression and expansion processes may be modeled as polytropic with a polytropic constant of 1.3. Take Cy = 0.716 kJ/kg K, C, = 1.0 kJ/kg K. Determine the: 1. temperature at the end of the compression process. 2. Pressure at end of the compression process 3. net work output. 4. thermal efficiency. 5. mean effective pressure.

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