The image above represents ratio of linear velocity of gas.
To compute for ratio of linear velocity of gas, three essential parameters are needed and these parameters are Porosity (e), Bubble Velocity (ub) and Sedimentation Velocity (uc).
The formula for calculating ratio of linear velocity of gas:
α = e(ub/uc)
Where:
α = Ratio of Linear Velocity of Gas
e = Porosity
ub = Bubble Velocity
uc = Sedimentation Velocity
Let’s solve an example;
Find the ratio of linear velocity of gas when the porosity is 8, the bubble velocity is 10 and the sedimentation velocity is 14.
This implies that;
e = Porosity = 8
ub = Bubble Velocity = 10
uc = Sedimentation Velocity = 14
α = e(ub/uc)
α = 8(10/14)
α = 8(0.714)
α = 5.71
Therefore, the ratio of linear velocity of gas is 5.71.
Calculating the Porosity when the Ratio of Linear Velocity of Gas, the Bubble Velocity and the Sedimentation Velocity is Given.
e = α x uc / ub
Where:
e = Porosity
α = Ratio of Linear Velocity of Gas
ub = Bubble Velocity
uc = Sedimentation Velocity
Let’s solve an example;
Find the porosity when the ratio of linear velocity of gas is 30, the bubble velocity is 5 and the sedimentation velocity is 3.
This implies that;
α = Ratio of Linear Velocity of Gas = 30
ub = Bubble Velocity = 5
uc = Sedimentation Velocity = 3
e = α x uc / ub
e = 30 x 3 / 5
e = 90 / 5
e = 18
Therefore, the porosity is 18.
Continue reading How to Calculate and Solve for Ratio of Linear Velocity of Gas | Fluidization