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A combined vapor power cycle consists of two ideal Rankine cycles with cesium and steam as the working fluids. In the caesium cycle, saturated vapor caesium enters the turbine at100 psia, and saturated liquid exits the condenser at 740ºF. Relevant property data for saturated caesium are given in the table below. The heat rejected from the caesium cycle is provided to the steam cycle, producing saturated water vapor at 2250 psia. The steam is then superheated to the 1100°F through further heat addition from another source. Saturated liquid water leaves the condenser at 1 psia. For a net power output of 3x109 Btu/h from the combined cycle, Draw the T-s diagram (hint: it would help to begin with a schematic of the cycle) and Determine:
a) The mass flow rate of caesium and water, in lbm/h
b) The net rate of heat addition to the overall combined cycle, in Btu/h
c) The thermal efficiency of the combine cycle
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