Steam enters an adiabatic turbine steadily at 5 mpa and 450 c, and leaves at 500 kpa and 200 c. the turbine produces 3.5 mw of power as a result. a) determine the isentropic efficiency of the turbine. is this a reasonable value? b) determine the mass flow rate of the steam required to produce 3.5 mw of power.

Amixture of slurry and mud is to be pumped through a horizontal pipe of diameter 500 mm. the fluid behaves as a bingham plastic with a yield stress of 30 pa and viscosity 0.04 pa. s. describe the effects of the shear stress through a transverse section of the pipe by plotting the variation in shear stress and velocity profile: (i) just before the slurry starts to move (ii) as the slurry flows when the pressure gradient is double that in part (i)