A proposed steam power plant design consists of an ideal Rankine cycle with reheat and regeneration. Steam enters Turbine 1 at P1 and T1 at the rate of m1 and exits at P2. A fraction (y') of the steam exiting Turbine 1 is diverted to an open feedwater heater while the remainder is reheated to T3 before entering Turbine 2. The condenser operates at P4. Saturated liquid exits the condenser and is fed to Pump 1. The outlet of Pump 1 is fed into the open feedwater heater. Saturated liquid exits the feedwater heater and is fed to Pump 2. All turbines and pumps are isentropic.
m1 (kg/s) = 50
P1 (Bar) = 160
T1 (oC) = 640
P2 (Bar) = 10
T3 (C) = 600
P4 (Bar) = 1
P5 (Bar) = 0.06
Required:
a. Determine the specific enthalpy (kJ/kg) at the inlet of turbine 1.
b. Determine the specific enthalpy (kJ/kg) at the exit of turbine 1.
c. Determine the specific enthalpy (kJ/kg) at the inlet of turbine 2 .
d. Determine the specific enthalpy (kJ/kg) at the exit of turbine 2.
Answers: 2
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A proposed steam power plant design consists of an ideal Rankine cycle with reheat and regeneration....
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