Vacuum vs. Centrifuge - equivalence

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The discussion centers on transitioning from a vacuum system to a centrifuge for filtering solutions. The user seeks assistance in converting vacuum pressure measured in mbars to the equivalent force in terms of gravitational acceleration (g's) for centrifugation. They express the relationship between pressure, force, and area using the equation Dm*a*g = DP*A, where Dm is the density difference, a*g represents the centrifuge acceleration, DP is the pressure drop, and A is the filter area. This mathematical approach aims to clarify how to equate the two systems effectively. Understanding this conversion is crucial for optimizing the filtration process.
dsch
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I've been using a vacuum system to filter solutions. I would like to move it over to a centrifuge. I have been having trouble equating the pressure in the vacuum to the required amount of force required by a centrifuge. Can someone help me out with the math? I'm looking a the vacuum pressure in mbars and for centrifugation, it seems that standard gravity is best (number of "g's").
 
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dsch said:
I've been using a vacuum system to filter solutions. I would like to move it over to a centrifuge. I have been having trouble equating the pressure in the vacuum to the required amount of force required by a centrifuge. Can someone help me out with the math? I'm looking a the vacuum pressure in mbars and for centrifugation, it seems that standard gravity is best (number of "g's").

Since pressure is simply force/area, I get Dm*a*g = DP*A, where Dm is the density difference between solution and air, a*g = acceleration of the centrifuge (i.e. 100g's), DP the pressure drop for your vacuum system, and A the area of the filter.
 

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