A diesel cycle with air as the working fluid has a compression ratio of 20 . The initial (minimum) temperature of the cycle is 20C at a pressure of 1bar, while the maximum temperature of the cycle is 1800K. (Air: Cp=1,005kJ/kgK,CV=0.718kJ/kgK ). Determine: a. P-v diagram of the cell cycle b. Volume cut-off ratio c. Cycle maximum pressure d. The heat released by the system. e. Cycle thermal efficiency