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Re: Liebig pipe diameters

PostPosted: Sun Jan 07, 2018 3:27 am
by Easydrinker
Icefever wrote:Cheers Myles...

See I said he'd be along.... ;) trust me I'm a soothsayer...oh ya oh ya & thrice ho ya :D :D


Next, you will be telling me where Santa really lives.....

Robert.

Re: Liebig pipe diameters

PostPosted: Sun Jan 07, 2018 1:42 pm
by Myles
StarkBlood80 wrote:Thanks for the reply, I have much to think about.
Do you think reducing the vapour stream down from 54-22-15 would increase the velocity much compared to just going from 54-22?


It has to really, but it depends on your power input and just how fast the vapour is to start with. It might not be significant.

When I build a 2" pot still intended for 3 kW I put in a short (6" or so) 35 mm in 54 mm pre-condenser in the downwards vapour path before the product condenser. It is just there to take some load off the PC and slow down the vapour a bit. It only condenses a bit of the vapour but that helps to slow down the rest.

What is more important though is distance inside the PC. Even if the vapour is slow, the bit in the middle of the 22 mm tube is 11 mm away from a cold surface. That's not good as you don't want any vapour getting to the end of the PC without condensing.

15 mm is better and 12 mm even more so, but the tube length needed gets excessive so you have to cut it and use multiple vapour paths.

I know folks do use 22 mm cores in PCs but I don't do it myself. Some of them admit to putting copper mesh or scrunched wire inside the vapour tube. That is to introduce turbulence to make the vapour bump into the cold surface.

Re: Liebig pipe diameters

PostPosted: Sun Jan 07, 2018 3:07 pm
by Icefever
Easydrinker wrote:
Icefever wrote:Cheers Myles...

See I said he'd be along.... ;) trust me I'm a soothsayer...oh ya oh ya & thrice ho ya :D :D


Next, you will be telling me where Santa really lives.....

Robert.


I know this as well...if your a good boy between now and the end of this year who knows what you may get??? ;) ;)

Re: Liebig pipe diameters

PostPosted: Sun Jan 07, 2018 10:21 pm
by StarkBlood80
Myles wrote:
StarkBlood80 wrote:Thanks for the reply, I have much to think about.
Do you think reducing the vapour stream down from 54-22-15 would increase the velocity much compared to just going from 54-22?


It has to really, but it depends on your power input and just how fast the vapour is to start with. It might not be significant.

When I build a 2" pot still intended for 3 kW I put in a short (6" or so) 35 mm in 54 mm pre-condenser in the downwards vapour path before the product condenser. It is just there to take some load off the PC and slow down the vapour a bit. It only condenses a bit of the vapour but that helps to slow down the rest.

What is more important though is distance inside the PC. Even if the vapour is slow, the bit in the middle of the 22 mm tube is 11 mm away from a cold surface. That's not good as you don't want any vapour getting to the end of the PC without condensing.

15 mm is better and 12 mm even more so, but the tube length needed gets excessive so you have to cut it and use multiple vapour paths.

I know folks do use 22 mm cores in PCs but I don't do it myself. Some of them admit to putting copper mesh or scrunched wire inside the vapour tube. That is to introduce turbulence to make the vapour bump into the cold surface.


I also read about packing the condenser to help slow the vapour down.
Going back to my original question, do you think a 22-28 PC would work or is the water jacket too thin to be efficient?

Re: Liebig pipe diameters

PostPosted: Sun Jan 07, 2018 11:07 pm
by H12rpo
It will depend on three factors at least, the water temp, the length of the PC and the rate at which the coolant flows.
Why not post a pic of the design and you may get some more informed opinions ?

Re: Liebig pipe diameters

PostPosted: Mon Jan 08, 2018 3:32 am
by Easydrinker
I have just read this thread 3 times, top to bottom, looking for animosity cos' it seemed to be there.
If it is it is in the post above.(That was a bunch of two letter words).
Tomorrow when I log in, I expect this thread to be filled with stories about kittens and cute shit.

Robert.

Re: Liebig pipe diameters

PostPosted: Mon Jan 08, 2018 5:26 am
by Myles
None intended from my side.

StarkBlood80 if you wish drop me a pm with your boiler/element specs, I would be happy to crunch numbers for you and recommend a PC configuration.
Image

Re: Liebig pipe diameters

PostPosted: Mon Jan 08, 2018 10:18 am
by StarkBlood80
Easydrinker wrote:I have just read this thread 3 times, top to bottom, looking for animosity cos' it seemed to be there.
If it is it is in the post above.(That was a bunch of two letter words).
Tomorrow when I log in, I expect this thread to be filled with stories about kittens and cute shit.

Robert.

Animosity from whom? There was certainly none intended from my part.

Re: Liebig pipe diameters

PostPosted: Mon Jan 08, 2018 11:31 am
by H12rpo
Only kittens from me

Re: Liebig pipe diameters

PostPosted: Mon Jan 08, 2018 10:41 pm
by Easydrinker
Loving the kittens.
We trapped a feral cat on the farm before Xmas that now allows me to stroke it in the trap.
Next step is a trip to the vet to lose his nuts.
After that we hope it will stick around and earn it's keep.

I really am as soft as shit. ;D

Robert.

Re: Liebig pipe diameters

PostPosted: Tue Jan 09, 2018 10:20 am
by Myles
We are a cat family.
That ginger was dumped in our garden at 9 months old so we kept him. Softest cat we have ever had and he instantly bonded to our Egyptian Mau.
We also have an older Russian Blue and another ginger/white pus who can't be trusted. He rolls to get you to approach close enough so he can bite you - he thinks it is funny.

Our latest kittens are these two hooligans. Snow Bengals.

Image

Re: Liebig pipe diameters

PostPosted: Tue Jan 09, 2018 10:48 am
by Mash
We have a had cats forever its seems (wroking and house cats). Sadly lost our Maine Coon before Christmas - called TAZ. For his likeness to the cartoon Tasmanian devil - you can guess the rest.

Re: Liebig pipe diameters

PostPosted: Tue Jan 09, 2018 11:34 am
by H12rpo
Wow those bengals are beauties

Re: Liebig pipe diameters

PostPosted: Tue Jan 09, 2018 12:01 pm
by Myles
H12rpo wrote:Wow those bengals are beauties


Sure are but these two are very dominant, bully the other female (Mau) and act like they are constantly overloaded with adrenaline. Good job they have a lot of space to run in and we have a 4 foot diameter cat wheel that they get spinning quite fast.

These are the Seal Mink and Seal Sepia colours.

We had their sister also. She was a beautiful Seal Lynx, unfortunately she got a virus and passed very fast. She was an exceptional show quality cat.

Image

OOPS. drifted a bit off topic there.

Re: Liebig pipe diameters

PostPosted: Tue Jan 09, 2018 5:31 pm
by Mash
I thought I might include this link.

https://www.ebay.co.uk/itm/AC-220V-4000 ... 2749.l2649

This is about the only thread on this entire forum but does not mention it, however it will be quite useful to you, setting up your new still.