The refrigerant fluid R-21 (see Table A.2) is to be used as the working fluid in a

Question:

The refrigerant fluid R-21 (see Table A.2) is to be used as the working fluid in a solar energy powered Rankine-cycle type power plant. Saturated liquid R-21 enters the pump, state 1, at 25oC, and saturated vapor enters the turbine, state 3, at 88oC. For R-21: CP0 = 0.582 kJ/kg K and find the boiler heat transfer q23 and the thermal efficiency of the cycle.