An ideal Diesel cycle with air as the working fluid has a compression ratio of 22 and a cutoff ratio of 2.5. At the beginning of the compression process, the working fluid is at 14.7 psi, 80 °F, and 112 in3. Use the cold-air standard assumptions.
a. Draw the processes on P-v and T-s diagrams.
b. What are T and P of the air at the end of each process in degrees R and psi, respectively?
c. What is the net work in BTU?
d. What is the thermal efficiency of the cycle?
e. What is the mean effective pressure in psi?