An air-standard Otto cycle has a compression ratio of 7.0. At the beginning of the compression p1 = 85 kPa, T1 = 52°C. The maximum temperature in the cycle is 1080 K.
(a) Draw T-s diagram for the cycle
(b) State the Engineering model and assumptions
(c) Calculate the net-work done, in kJ/kg
(d) Calculate the mean effective pressure, in kPa