Steam enters in the turbine at 6 MPa and 450 deg C and expands at some intermediate pressure 60 % of steam is extracted and remainder expands to 10 kPa at this Investigate the effect of extraction for moving steam from turbine to be used for open feed water optimum bleed pressure for Open feed water heater that maximize the thermal efficiency of single OFWH Regenerative Rankine cycle. Take Turbine inlet temperature in the range of 450 to 650 deg C and boiler pressure in range of 100 bar 190 bar.