The image above represents permeability due to partial pressure. To calculate permeability due to partial pressure, three essential parameters are needed and these parameters are Diffusion Coefficient (D), Constant (K)Â and Partial Pressure (Po).
The formula for calculating permeability due to partial pressure:
P = DK / √(Po)
Where:
P = Permeability due to Partial Pressure
D = Diffusion Coefficient
K = Constant
Po = Partial Pressure
Let’s solve an example;
Find the permeability due to partial pressure when the diffusion coefficient is 12, the constant is 14 and the partial pressure is 17.
This implies that;
D = Diffusion Coefficient = 12
K = Constant = 14
Po = Partial Pressure = 17
P = DK / √(Po)
That is, P = (12)(14) / √(17)
P =Â 168Â /Â 4.12
P = 40.74
Therefore, the permeability due to partial pressure is 40.74.
Calculating the Diffusion Coefficient when the Permeability due to Partial Pressure, the Constant and the Partial Pressure are Given
D = P x √(Po) / K
Where;
D = Diffusion Coefficient
P = Permeability due to Partial Pressure
K = Constant
Po = Partial Pressure
Let’s solve an example;
Find the diffusion coefficient when the permeability due to partial pressure is 12, the constant is 8 and the partial pressure is 16.
This implies that;
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P = Permeability due to Partial Pressure = 12
K = Constant = 8
Po = Partial Pressure = 16
D = P x √(Po) / K
D = 12 x √(16) / 8
Then, D = 12 x 4 / 8
D = 48 / 8
D = 6
Therefore, the diffusion constant is 6.
Read more:Â How to Calculate and Solve for Knudsen Diffusion of Moulding Sand | Mass Transfer
Calculating the Constant when the Permeability due to Partial Pressure, the Diffusion Coefficient and the Partial Pressure are Given
K = P x √(Po) / D
Where:
K = Constant
P = Permeability due to Partial Pressure
D = Diffusion Coefficient
Po = Partial Pressure
Let’s solve an example;
Find the constant when the permeability due to partial pressure is 20, the diffusion constant is 10 and the partial pressure is 25.
This implies that;
P = Permeability due to Partial Pressure = 20
D = Diffusion Coefficient = 10
Po = Partial Pressure = 25
K = P x √(Po) / D
K = 20 x √(25) / 10
Then, K = 20 x 5 / 10
K = 100 / 10
K = 10
Therefore, the constant is 10.
Calculating the Partial Pressure when the Permeability due to Partial Pressure, the Diffusion Coefficient and the Constant are Given
Po =(DK / P)2
Where:
Po = Partial Pressure
P = Permeability due to Partial Pressure
D = Diffusion Coefficient
K = Constant
Let’s solve an example;
Find the partial pressure when the permeability due to partial pressure is 15, the diffusion constant is 5 and the constant is 6.
This implies that;
P = Permeability due to Partial Pressure = 15
D = Diffusion Coefficient = 5
K = Constant = 6
Po =(DK / P)2
Po =((5)(6) / 15)2
So, Po =(30 / 15)2
Po =(2)2
Po = 4
Therefore, the partial pressure is 4.
Read more:Â How to Calculate and Solve for Permeability | Mass Transfer
How to Calculate Permeability due to Partial Pressure Using Nickozm Calculator
Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the permeability due to partial pressure.
To get the answer and workings of the permeability due to partial pressure using the Nickzom Calculator – The Calculator Encyclopedia. First, you need to obtain the app.
You can get this app via any of these means:
Web – https://www.nickzom.org/calculator-plus
To get access to the professional version via web, you need to register and subscribe for NGN 2,000 per annum to have utter access to all functionalities.
You can also try the demo version via https://www.nickzom.org/calculator
Android (Paid) – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator
Android (Free) – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator
Apple (Paid) – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8
Once, you have obtained the calculator encyclopedia app, proceed to the Calculator Map, then click on Materials and Metallurgical under Engineering.
Now, Click on Mass Transport under Materials and Metallurgical
Now, Click on Permeability due to Partial Pressure under Mass Transport
The screenshot below displays the page or activity to enter your values, to get the answer for the permeability due to partial pressure according to the respective parameter which is the Diffusion Coefficient (D), Constant (K)Â and Partial Pressure (Po).
Now, enter the values appropriately and accordingly for the parameters as required by the Diffusion Coefficient (D) is 12, Constant (K) is 14 and Partial Pressure (Po) is 17.
Finally, Click on Calculate
As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the permeability due to partial pressure and presents the formula, workings and steps too.
