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Vacuum vs. Centrifuge - equivalence

  1. Feb 4, 2008 #1
    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").
     
  2. jcsd
  3. Feb 5, 2008 #2

    Andy Resnick

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    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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