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Column Insulation

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  • mwmccaw
    This subject has been hashed to death many times over the past few years in this very forum. Read the archives, folks! You re getting caught in a semantic
    Message 1 of 3 , Oct 7, 2003
      This subject has been hashed to death many times over the past few
      years in this very forum. Read the archives, folks!

      You're getting caught in a semantic trap over the words "reflux
      column" and "fractionating column", and everybody is partially right.

      A "fractionating column", operated WITHOUT any reflux condenser on
      top, works better uninsulated or minimally insulated because
      otherwise there is no reflux. Numerous people have posted their
      experimental data to this point. HOWEVER, that usage is very
      inefficient, because the majority of the reflux produced has half or
      less than half of the column length to travel downward and exchange
      with vapor.

      The very same column operated WITH a condenser on top producing
      reflux that is metered back to the column works better WITH
      insulation, for the very efficiency argument made above.

      In ALL cases, a column, well insulated, with imposed reflux from a
      condenser, will out perform an identical column operated without
      reflux condenser and without insulation.

      It is a matter of very basic physics, and the laws of physics are
      the only ones that people are still unable to break....

      Cheers,
      Mike McCaw

      Its basic physics
    • airbalancer
      My wife made me a present this weekend. Se took a couple ironing board covers, cut them up and sewed in a piece of armaflex insulation. So now I can just
      Message 2 of 3 , Sep 3 9:03 AM
        My wife made me a present this weekend. Se took a couple ironing board
        covers, cut them up and sewed in a piece of armaflex insulation. So now
        I can just Velcro the insulation on and off. Isn't she the best.

        Mike

        <img src="http://img.villagephotos.com/p/2003-11/516271/still04.jpg"
        width=600 height=800>




        <img src="http://img.villagephotos.com/p/2003-11/516271/still02.jpg"
        width=600 height=800>




        http://www.villagephotos.com/pubbrowse.asp?folder_id=1743105







        [Non-text portions of this message have been removed]
      • Harry
        ... board ... So now ... 11/516271/still04.jpg ... 11/516271/still02.jpg ... Nice job, Mike. BTW, that s a radical controller box you ve got. Home-brewed, I
        Message 3 of 3 , Sep 3 2:53 PM
          --- In Distillers@yahoogroups.com, "airbalancer" <airbalancer23@...>
          wrote:
          >
          >
          > My wife made me a present this weekend. Se took a couple ironing
          board
          > covers, cut them up and sewed in a piece of armaflex insulation.
          So now
          > I can just Velcro the insulation on and off. Isn't she the best.
          >
          > Mike
          >
          > <img src="http://img.villagephotos.com/p/2003-
          11/516271/still04.jpg"
          >
          > <img src="http://img.villagephotos.com/p/2003-
          11/516271/still02.jpg"
          >
          > http://www.villagephotos.com/pubbrowse.asp?folder_id=1743105



          Nice job, Mike. BTW, that's a radical controller box you've got.
          Home-brewed, I assume?


          Slainte!
          regards Harry
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