Question 3.19: Analyze a Stirling cycle engine which uses air as a working fluid. Let the minimum pressure be 400 kPa, the maximum volume be 1000 cm, and the minimum volume be 400 cm. The temperature of the hot side is 100C, and the temperature of the cold side is 20C. a) Sketch each process and state on a p-v diagram. b) Find the pressure at each state. [p =400kPa, P = P4=509kPa] 1000kPa, p3 = 1273kPa. c) Create a table with the pressure, temperature, and specific volume at each state. d) Find the change of internal energy, work, and heat transfer for each process. Put this information in a table. e) Find the net work of a cycle [100 J], the input heat transfer [466 J], and the thermal efficiency [21%].