A packed bed or fixed bed is filled with solid particles in the shape of a cube with a side length of 0.005 m. This bed is cylindrical in shape with a diameter of D and a height of H. The density of the bed filled with solid particles of a cube is 1200 kg/m3. The density of this cube-shaped particle material is 1500 kg/m3. The diameter of bed D is 0.2 m. The height of the bed L is 1 m. Air fluid flows into the bed against the direction of gravity at a volume flow rate of 0.1 m3/second. The density of air is 1.1 kg/m3. Air viscosity is 1.5 x 10-5 Pa.s.

i. Calculate the fraction of free space in this cram bed. ii. Calculate the ratio of particle surface area and particle volume as parameter av. iii. Calculate the hydraulic diameter of this cube-shaped solid particle. iv. Calculate the effective diameter of the particles in this packed bed. v. Calculate the superficial velocity of the fluid passing through the bed. vi. Calculate the interstitial velocity of the fluid passing through the bed. vii. Estimate the pressure loss that occurs in the flow of air through this bed