Problem

Air flows through a Diesel cycle, beginning the compression process at a temperature of 45...

Air flows through a Diesel cycle, beginning the compression process at a temperature of 45°C and a pressure of 100 kPa. The volume of gas present in the cylinder at the start of compression is 0.0041 m3. The compression ratio of the cycle is 20. The engine completes 1250 cycles per minute. Plot the power produced by the engine, the rate of heat addition for the engine, the thermal efficiency of the cycle, and the mean effective pressure for peak cycle temperatures varying between 1800 K and 2200 K, assuming that the air behaves as an ideal gas with variable specific heats.

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