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What prgram you could use to draw a ponchon and mccabe diagrams?

  1. Apr 30, 2007 #1
    Hey does anyone know what prgram you could use to draw a ponchon and mccabe diagram for mass transfer.

    Particularly one thats downloadable :P.

    Cheers.
     
  2. jcsd
  3. Apr 30, 2007 #2
    Rather easy to do yourself.
    You just need the thermodynamic data.
    Start then by modelling one equilibrium stage with a short program, then re-use it for a multiple stage.
    The counter-current aspect may introduce some additional difficulty, but it should be easy to overcome with a bit of time and strategy.
    Without garantee, I could think a bit further if you gave me more detail about the system you are stuying.
     
    Last edited: Apr 30, 2007
  4. May 1, 2007 #3

    siddharth

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    The major problem for me was plotting the equilibrium data on the graph. (ie, y vs x, H -x -y and N - x -y plots). Once you fit a curve through the data points and print it, the rest of the construction can easily be done with a pencil
     
  5. May 1, 2007 #4
    Cheers. Ah yeh I know its easy enough to do by hand.. but yeh I'm looking for very accurate results. Thats the only reason I wanted to know if it could be done via a program.
     
  6. May 1, 2007 #5

    siddharth

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    If you're interested, I found this site with some free software on the mccabe thiele method.
    http://www.familiataboada.com/IQ/page4.html
    I've not used it, so I don't know how reliable or safe the software is.

    Anyway, in my experience, solving by hand usually gives pretty accurate answers.
     
    Last edited: May 1, 2007
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