An ideal regenerative Rankine cycle contains two open reheaters as shown in the T-s diagram of Fig. 8.36. Steam with a flow rate of 20 kg/s leaves the boiler at 8 MPa and 600°C. Steam is removed from the turbine at 2 MPa and at 400 kPa. The remaining steam leaves the turbine at 20 kPa. Calculate:
i) The heat flow rate into the boiler
ii) The mass flow rate diverted to each feedwater heater
iii) The power output of the turbine
iv) The quality of the steam exiting the turbine
v) The net power input to the three pumps
vi) The heat loss from the condenser
vii) The thermodynamic efficiency of the cycle
Figure 8.36

20 kg/s m10