A piston-cylinder device containing water undergoes a thermodynamic cycle consisting of the following three processes:
Process 1-2: Isobaric (constant pressure) expansion from 90°C and 0.97 m3/kg to 360°C
Process 2-3: Compression during which Pv = constant
Process 3-1: Isochoric (constant volume) heat rejection
(a) Sketch the cycle on P-v and T-v diagram. Label the states, show property values, and indicate appropriate lines of constant temperature or pressure.
(b) Calculate the specific work (kJ/kg) for the entire cycle.
(c) Find the specific heat transfer (kJ/kg) for the constant volume process.
(d) Is this a power cycle or a refrigeration cycle?