Carbon dioxide steadily flows into a constant pressure heater at 300 K and 100 kPa witha mass flow rate of 9.2 kg/s. Heat transfer in the rate of 175 kW is supplied to the carbondioxide as it flows through the heater. Determinea) the carbon dioxide temperature at the exit andb) carbon dioxide volume flow rate at the heater exit. Assume constant specific heat, cp, of 1075 J/(kg K).

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)