A four-cylinder, four-stroke, 3.2-L compression-ignition engine operates on the ideal diesel cycle with a compression ratio of 19. The air is at 95 kPa and 67°C at the beginning of the compression process and the engine speed is 1750 rpm. The engine uses light diesel fuel with a heating value of 42,500 kJ/kg, an air-fuel ratio of 28, and a combustion efficiency of 98 percent Describe the operational sequence of the used engine with the aid of sketches by constructing simple sketch representing the operation and plotting the P-V diagrams for each process during the cycle to show the following: - The input and output heat and net output work - The movement of the piston - The expansion and compression strokes - The air-fuel mixture intake and exhaust gasses
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A four-cylinder, four-stroke, 3.2-L compression-ignition engine operates on the ideal diesel cycle with a compression ratio of 19. The air is at 95 kPa and 67°C at the beginning of the compression process and the engine speed is 1750 rpm. The engine uses light diesel fuel with a heating value of 42,500 kJ/kg, an air-fuel ratio of 28, and a combustion efficiency of 98 percent
Describe the operational sequence of the used engine with the aid of sketches by constructing simple sketch representing the operation and plotting the P-V diagrams for each process during the cycle to show the following:
- The input and output heat and net output work
- The movement of the piston
- The expansion and compression strokes
- The air-fuel mixture intake and exhaust gasses
- The spark plug when it is in the active mode
- The complete cycle of ideal Otto and Diesel cycles that shows the input and output heat and net output work.
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