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    The column efficiency starts to drop once you move from 2 to 3 . When you move to 4 it drops markedly. This means that by just scaling up a 2 design to 4
    Message 1 of 7 , Jan 4, 2009
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      The column efficiency starts to drop once you move from 2" to 3".
      When you move to 4" it drops markedly. This means that by just
      scaling up a 2" design to 4" you are not going to get 95.6% ethanol
      four times faster.

      It is indeed the case that you would be better off making another
      type of a still if it is easy neutral alcohol production you have in
      mind. Look for VM, ARC and E-ARC type of stills.

      Cheers, Riku

      --- In Distillers@yahoogroups.com, "gff_stwrt" <gff_stwrt@...> wrote:
      > Hi, folks,
      > I plan to make one of these Bokakob slant plate reflux stills
      > day, though for the time being I am trying to learn to operate my
      > still.
      > I have some two inch and some three inch copper tube, and also
      > about eight feet of four inch stainless.
      > (If I used the stainless, and in fact in any case, I would use
      > copper mesh in the column).
      > If I take it for granted for the moment that there will be no
      > difficulty in matching the boiler (bigger pot) and the heat source
      > (bigger gas ring), and so on, to the bigger tubes;
      > will the three inch be a lot better than the two inch, and the
      > four inch be much better than the three inch?
      > In other words will the bigger ones produce a lot more
      product, of
      > equal quality to the smaller ones, in the same amount of time?
      > On the face of it it would seem so, but life is not that
      > is it? It is even possible that I would be better off making a
      > different kind of reflux still.....
      > Thanks very much to you more experienced distillers for your
      > Regards,
      > The Baker
      > --- In Distillers@yahoogroups.com, "midnighthorseman" <lbc471965@>
      > wrote:
      > >
      > > --- In Distillers@yahoogroups.com, "Harry" <gnikomson2000@> wrote:
      > > > aaahhh i have a2" double slant bokabob with a 2x6" long tube
      > > the slants packed with structured packing and ran a very nice rum
      > > new years eve.... made the rum from 5lbs pilloncio,5 lbs white
      > > sugar,1qt Grandmas molassses, approx 1 QT dunder from previous
      > > out of a 5 gals. of wash i ended up with 2300 ml of 170pf and 300
      > > tails with the regular heads n foreshots added to my tails for
      > > distillations.... awesome flavor!!!.....
      > > best of luck in everyones endevores this new years!!!!
      > > > Everybody still recovering????
      > > >
      > > > Slainte!
      > > > regards Harry
      > > >
      > >
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