Regenerative Rankine steam power plant operates at boiler pressure of (12.5MPa) and the steam leaves the boiler and enters the turbine at (550°C). Some steam is exerted at pressure of (1MPa) to an open feed water heater. The still steam is continues expanding until condenser pressure of (15kPa). If the plant developed (10MW). Find the mass flow rate of steam in the cycle and the cycle efficiency.

The net power (NOT TURBINE POWER) of the following steam power cycle is desired to be 25MW.Steam enters the turbine at 16 MPa, 450C, condenser at 10kPa pressure saturated liquid-steamIt enters as a mixture. Compressed liquid enters the pump at 9kPa at 35C and at 17MPacomes out. The inlet pressure to the boiler is 16.8MPa and 33C. The output from the boiler is 16.2MPa and 575C.The isentropic efficiency of the turbine is 90%, and that of the pump is 83%. Find the mass flow rate that will provide the required net power.