Otto, Diesel, and Dual Cycles Solve Problem 9.1 on a cold air-standard basis with specific heats evaluated at 300 K.
Problem 9.1
An air-standard Otto procycle has a compression ratio of 9. At the beginning of compression, p1 = 100 kPa and T1 = 300 K. The heat addition per unit mass of air is 1350 kJ/kg. Determine
(a) the net work, in kJ per kg of air.
(b) the thermal efficiency of the cycle.
(c) the mean effective pressure, in kPa.
(d) the maximum temperature in the cycle, in K.
(e) To investigate the effects of varying compression ratio, plot each of the quantities calculated in parts (a) through (d) for compression ratios ranging from 1 to 12.
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