The image above represents breakaway pressure. To calculate breakaway pressure, three essential parameters are needed and these parameters are Temperature (T), Average Particle Diameter (Dp) and Mean Diameter of Gas Particle (d).
The formula for calculating breakaway pressure:
Pb = 4.32 x 10-21(T / Dpd²)
Where:
Pb = Breakaway Pressure
T = Temperature
Dp = Average Particle Diameter
d = Mean Diameter of Gas Particle
Let’s solve an example;
Find the breakaway pressure when the temperature is 7, the average particle diameter is 14 and the mean diameter of gas particle is 3.
This implies that;
T = Temperature = 7
Dp = Average Particle Diameter = 14
d = Mean Diameter of Gas Particle = 3
Pb = 4.32 x 10-21(T / Dpd²)
That is, Pb = 4.32 x 10-21(7 / (14)(3)²)
Pb = 4.32 x 10-21(7 / (14)(9))
Pb = 4.32 x 10-21(7 / 126)
So, Pb = 4.32 x 10-21(0.055)
Pb = 2.4e-22
Therefore, the breakaway pressure is 2.4e-22 atm.
Read more:Â How to Calculate and Solve for Thermal Conductivity of Gases | Energy Transport
How to Calculate Breakaway Pressure With Nickzom Calculator
Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the breakaway pressure.
To get the answer and workings of the breakaway 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
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To get access to the professional version via web, you need to register and subscribe 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 Energy Transport under Materials and Metallurgical
Now, Click on Breakaway Pressure under Energy Transport
The screenshot below displays the page or activity to enter your values, to get the answer for the breakaway pressure according to the respective parameter which is the Temperature (T), Average Particle Diameter (Dp) and Mean Diameter of Gas Particle (d).
Now, enter the values appropriately and accordingly for the parameters as required by the Temperature (T) is 7, Average Particle Diameter (Dp) is 14 and Mean Diameter of Gas Particle (d) is 3.
Finally, Click on Calculate
As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the breakaway pressure and presents the formula, workings and steps too.
