4.8 kg/sec of steam enters a turbine. the inlet of the turbine is 2.5 meters higher than the outlet. the inlet velocity is 132 m/sec and the outlet velocity is 327 m/sec. heat is lost from the casing of the turbine at the rate of 9.2 kj/sec. at the inlet of the unit the enthalpy is 3127.4 kj/kg and at the outlet the enthalpy is 2512 kj/kg. determine the work out of the turbine in kilowatts.

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)