Problem

Air flows through a dual cycle, beginning the compression process at 100 kPa and 50°C. Con...

Air flows through a dual cycle, beginning the compression process at 100 kPa and 50°C. Consider the compression ratio to be 20 and the pressure ratio of the cycle to be 1.75. Plot the maximum temperature and pressure in the system, the net work per kg of air produced in the cycle, the thermal efficiency of the cycle, and the mean effective pressure for cut-off ratios varying between 1.1 and 1.3, assuming that the air behaves as an ideal gas with variable specific heats.

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