QUESTION 2: FLUIDIZATION 2.1 Explain the effect of fluid velocity on pressure gradient. (10) 2.2 Malume...
QUESTION 2: FLUIDIZATION 2.1 Explain the effect of fluid velocity on pressure gradient. (10) 2.2 Malume Pty Ltd is a consulting company specializing in fluidized bed technology. A client, Eagle's nest investments specializing in Coal to Liquids (CTL) brings the problem as outlined below to Malume Pty Ltd. Coal particles with size of 0.14mm, shape factor of 0.92 and a particle density of 1200kg/m are to be fluidized with air at 2 bar (abs) and 30'C. The bulk density of the coal material is 1000kg/ml. The voidage at minimum fluidizing velocity is 0.38. The bed is charged with 350kg of solid material and the diameter of the empty bed is 0.60m. The viscosity of air is 1.845x10- Ns/m. Suppose you are the Senior Engineer at Malume Pty Ltd tasked to assist Eagle's nest. Calculate: 1.1 Height of packed bed 1.2 The minimum height of fluidized bed 1.3 The pressure drop at minimum fluidizing velocity 1.4 The minimum fluidizing velocity 1.5 The minimum fluidizing velocity using the approximate values given below (8) and 14 a11 [307