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(a) The height of the sand layer at the onset of fluidisation (b) The pressure drop in the fluidised bed (c) The minimum fluidising velocity (d) The velocity at which transportation of the particles takes place. Assume streamline flow across the particles. Is the assumption correct?

(a) The height of the sand layer at the onset of fluidisation (b) The pressure drop in the fluidised bed (c) The minimum fluidising velocity (d) The velocity at which transportation of the particles takes place. Assume streamline flow across the particles. Is the assumption correct?

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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7. Air, at 400 °C and 17 bar-abs, is used to fluidise 32700 kg of sand in a cylindrical vessel. The diameter of the vessel is 3.05 m and that of the particle is 0.147 mm. If the density of the particles is 2690 kg/m³, calculate: (a) The height of the sand layer at the onset of fluidisation (b) The pressure drop in the fluidised bed (c) The minimum fluidising velocity (d) The velocity at which transportation of the particles takes place. Assume streamline flow across the particles. Is the assumption correct? Air constant, R = 0.287 kJ/kgK Viscosity of air at fluidization conditions=0.032 cp Find &M from the curves of Fig 10.12
Transcribed Image Text:7. Air, at 400 °C and 17 bar-abs, is used to fluidise 32700 kg of sand in a cylindrical vessel. The diameter of the vessel is 3.05 m and that of the particle is 0.147 mm. If the density of the particles is 2690 kg/m³, calculate: (a) The height of the sand layer at the onset of fluidisation (b) The pressure drop in the fluidised bed (c) The minimum fluidising velocity (d) The velocity at which transportation of the particles takes place. Assume streamline flow across the particles. Is the assumption correct? Air constant, R = 0.287 kJ/kgK Viscosity of air at fluidization conditions=0.032 cp Find &M from the curves of Fig 10.12
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