22461Re: Advantage of tall column
- Nov 1, 2006--- In email@example.com, "tyler_97355" <kd7enm@...>
> ok, so a 2" column "flooding" around 3kw is like my 1/2"
> liebig "choking" at 1.5kw when i tried to us it as a verticle
> condenser, right? Too much liquid being condensed and staying inthe
> packing, which would impeed the vapor flow, and preasurize thestill,
> if i understand correctly. Which brings up another question. Ifyour
> info is correct, that a 2" column will flood if given a heat inputof
> over 2-3kw, why is it that the PDA-2 will handle a max power input
> 5.5kw? If i remember correctly, it is constucted with 2" pipe............It's not 2" pipe. I can't remember which it is, either
it's 3" or 4", but definitely not 2".
> Once again, to make sure that i get the entirely clear definition
> HETP, the HETP is the height of packing that it takes to equal one.............AND that particular heat input.
> theoretical plate for the given tamperature, for that type of
So, lets say, if the HETP for my still and its packing was 8
> inches for each plate, if i increased my heat input, it mightrequire
> 12 inches for each plate........Yes.
I know that the measurements are not
> correct, i am just wondering if i have the general idea down...Yes.
> I do wonder, how does one aquire this knowledge? Does it take
> of engineering school,......The discipline is known as "Chemical Engineering" ChE for
or is it just a matter of knowing the right
> equations?........ You can be 'self-taught' if you have a capacity to learn.
The information is available in any library and in many places on
the internet. I am self taught when it comes to physics,
electrical, mechanical & chemical engineering. My degrees are in
computing and Information Technology. But that doesn't stop me from
acquiring the knowledge I need to assist me in my chosen hobby.
Bottom line is, if you have a desire to learn, and a capable brain,
then the sky's the limit. Age is no barrier.
Side note for Riku: There are formulae for working out HETP.
They're called McCabe-Theile Diagrams, phase diagrams, and for the
lazy ones, computer simulations such as HYSIS . But you need to get
a lot more theory & prac under your belt (distillation-wise) before
you tackle that level. The 'net is your fingertip library. ;-)
I'm sorry if i am really slow with catching on to some of
> the theory here, but thats why i'm in the "new distillers" forum,and
> i really appreciate all of your help........Look on Tony's homedistiller.org homesite (homepage of this
group). That will give you a jump-start to the theory.
Someday, i want you all to be
> able to look back at me and say, "my god, what have we done!"Slainte!
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