Air enters an adiabatic turbine steadily at 6 MPa, 600oC, 50 m/s and exits at 50 kPa,

Question:

Air enters an adiabatic turbine steadily at 6 MPa, 600oC, 50 m/s and exits at 50 kPa, 150 m/s with a mass flow rate (m⋅) of 6 kg/s. Assuming the turbine efficiency to be 90%, use Turbine Simulator RIA (linked from left margin) to.
(a) Determine shaft power (W⋅sh).
(b) Plot how shaft power (W⋅sh) varies with turbine efficiency varying from 70% to 90%, all other input variables remaining unchanged.