A gas in a piston-cylinder assembly undergoes a thermodynamic cycle consisting of the following processes where changes in kinetic and potential energies are negligible.
Process 1-2: Adiabatic compression with PV$^{1.5}$ = constant, P? = 5 bar, V? = 1.5 m³, P?= 10 bar
Process 2-3: Constant volume
Process 3-1: Constant pressure expansion, U?-U? = -2600 KJ
Determine:
a) V? (m³)
b) W$_{cycle}$ (KJ)
c) U?-U? (KJ)
d) Q??? (KJ)
e) Q$_{cycle}$ (KJ)
f) Is this a Power or Refrigeration cycle? Why?
g) Calculate the thermal efficiency or the coefficient of performance accordingly based on your answer in part (f).
