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 1). A simple Rankine cycle uses water as the working fluid. Saturated vapor enters the turbine at 8.0 MPa and saturated liquid water exists the condenser at a pressure of 8.0 kPa. The net power outp

1). A simple Rankine cycle uses water as the working fluid. Saturated vapor enters the turbine at 8.0 MPa and saturated liquid water exists the condenser at a pressure of 8.0 kPa. The net power output of the cycle is 100MW. Determine: a. The thermal efficiency b. The work ratio c. The mass flow rate of the steam in kg/min d. The rates of heat transfer into/from the working fluid as it passes through the boiler and condenser, respectively, in MW e. Show the cycle in a T-S and a P-v diagrams.

2)The Simple Rankine cycle descripted in question 1 is reanalysed by taking the effects of irreversibility in turbine, of which has an isentropic efficiency of 0.85. Determine: a. The thermal efficiency b. The mass flow rate of the steam in kg/min c. The rates of heat transfer into/from the working fluid as it passes through the boiler and condenser, respectively, in MW. d. The changes in specific entropy entering and existing the turbine. e. Show the cycle in a T-S and a P-v diagrams of question 1.

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