A packed bed is composed of cylinders having a diameter of 0.01 m and a length of double diameter. The packed bed has a depth of 2.00 m and a diameter of 0.50 m. The bulk density of the overall packed bed is 1000 kg/m3 and the density of the solid cylinders is 1600 kg/m3. 1. Calculate the void fraction 2. Calculate the effective diameter of the particles; 3. Water at 25 oC is flowing by gravity through the packed filter bed. If 20 kg/s water flow rate is needed, at what level the water should be held above the bed? Water density ρ=997 kg/m3. Water viscosity μ=0.8937 ×10-3 Pa∙s. (Ans. 0.375, 0.012m, 1.825m)
A packed bed is composed of cylinders having a diameter of 0.01 m and a length of double diameter. The packed bed has a depth of 2.00 m and a diameter of 0.50 m. The bulk density of the overall packed bed is 1000 kg/m3 and the density of the solid cylinders is 1600 kg/m3. 1. Calculate the void fraction 2. Calculate the effective diameter of the particles; 3. Water at 25 oC is flowing by gravity through the packed filter bed. If 20 kg/s water flow rate is needed, at what level the water should be held above the bed? Water density ρ=997 kg/m3. Water viscosity μ=0.8937 ×10-3 Pa∙s. (Ans. 0.375, 0.012m, 1.825m)
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A packed bed is composed of cylinders having a diameter of 0.01 m and a length of double diameter. The packed bed has a depth of 2.00 m and a diameter of 0.50 m. The bulk density of the overall packed bed is 1000 kg/m3 and the density of the solid cylinders is 1600 kg/m3.
1. Calculate the void fraction
2. Calculate the effective diameter of the particles;
3. Water at 25 oC is flowing by gravity through the packed filter bed. If 20 kg/s water flow rate is needed, at what level the water should be held above the bed? Water density ρ=997 kg/m3. Water viscosity μ=0.8937 ×10-3 Pa∙s. (Ans. 0.375, 0.012m, 1.825m)
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