Derive an expression for the thermal resistance through a hollow spherical shell of inside radius ri and outside radius ro having a thermal conductivity k.

On a average work day more than work place firs are reorted

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)

List and describe in sequence the operation process steps for boxf machine?