Chemical Engineering - Fluid Mechanics - Discussion

Discussion Forum : Fluid Mechanics - Section 7 (Q.No. 40)
40.
A bed consists of particles of density 2000 kg/m3. If the height of the bed is 1.5 metres and its porosity 0.6, the pressure drop required to fluidise the bed by air is
25.61 kPa
11.77 kPa
14.86 kPa
21.13 kPa
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
4 comments Page 1 of 1.

Pushkar sharma said:   4 years ago
The Right answer is option B.

Akhlaque Ahmad said:   4 years ago
Pressure drop = height of bed*(1-porosity)*(density of solids - density of fluid)* acceleration due to gravity.

Density of air = 1.225 kg/m^3.
P = 1.5 m *(1-0.6)*(2000-1.225) kg/m^3 * 9.8 m/s^2.
P = 11.75 KPa.
(1)

Sharad yadav said:   6 years ago
Thanks @Venkat.

Venkat said:   7 years ago
Pressure drop = height of bed*(1-porosity)*(density of solids - density of fluid)* accleration due to gravity.

Density of air = 1.225 kg/m^3.
P = 1.5 m *(1-0.6)*(2000-1.225) kg/m^3 * 9.8 m/s^2.
P = 11.75 KPa.

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