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 1 bar, while the maximum temperature of the cycle is 1800 K. (Air: Cp = 1.005 kJ/kgK, Cv = 0.718 kJ/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