A portion of the steam passing through a steam turbine is sometimes removed for the purpose of

Question:

A portion of the steam passing through a steam turbine is sometimes removed for the purpose of feed water heating as shown in fig 1. Consider an adiabatic steam turbine with 12.5 MPa and 5500C steam entering at a rate of 20 kg/s. Steam is bled from this turbine at 1000 kPa and 2000C with a mass flow rate of 1 kg/s. The remaining steam leaves the turbine at 100 kPa and 1000C. Determine the remaining power produced by this turbine.