2.80 As shown in Fig. P2.80, a gas within a piston-cylinder assembly undergoes a thermodynamic cycle consisting of three

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2 80 As Shown In Fig P2 80 A Gas Within A Piston Cylinder Assembly Undergoes A Thermodynamic Cycle Consisting Of Three 1 (91.14 KiB) Viewed 44 times

2.80 As shown in Fig. P2.80, a gas within a piston-cylinder assembly undergoes a thermodynamic cycle consisting of three processes in series: = Process 1-2: Compression with U₂ U₁. = 140 kPa, V3 = Process 2-3: Constant-volume cooling to p3 0.028 m³. Process 3-1: Constant-pressure expansion with W31 = 10.5 kJ. = For the cycle, Wcycle -8.3 kJ. There are no changes in kinetic or potential energy. Determine (a) the volume at state 1, in m³, (b) the work and heat transfer for process 1-2, each in kJ. (c) Can this be a power cycle? A refrigeration cycle? Explain. 2 Uz=U1 1 Р P3 = 140 kPa V3 = 0.028 m³ V Fig. P2.80