1) Steam enters a turbine at a pressure of 10 bar and temperature 360 degree C. It exists the turbine as saturated vapor at 1 bar (0.1 MPa). What is the isentropic efficiency of the turbine?
2) If the enviroment is given by Po and To. Find the specific energy for air, in KJ/kg if
a). P=Po/2 and T= To
b). P=Po/3 and T=To
3) Steam enters a turbine at P=20 bar and T=500 degree C and exists at 1 bar. A clain is given that the work per unit mass 791.4 KJ/Kg. No Ke or Pe effect are presented. Can this claim be correct? (Why or Why not, including use of a thermodynamic diagram plot).