If the flow rate of steam entering the turbine is 100 kg/s, then the work output (in MW) is ____

Question

Stem enters a well insulated turbine and expands isentropically throughout. At an intermediate pressure, 20 percent of the mass is extracted for process heating and the remaining steam expands isentropically of 9 kPa. Inlet to turbine P = 14 MPa, T = 560⁰C, h = 3846 kJ/kg, s = 6.6 kJ/(kg.K)

Intermediate stage: h = 2776 kJ/kg

Exit of turbine: P = 9kPa, h_f = 174 kJ/kg

If the flow rate of steam entering the turbine is 100 kg/s, then the work output (in MW) is _______________