Three barreled shotgun

[shadylane]

Decided to build something

[shadylane]

Forgot to add this.
29" long 1-1/2 diameter jacket and 1/2" tubes

[Da Yooper]

Good job, let us know how she works

[shadylane]

Looks like a 4 barrel gun to me;) nice job!

I wanted to use 4 barrels but there wasn't enough room for the cooling water to flow between them.
So I only used three.

[shadylane]

Tomorrow, I'll braze the ends up.
I was thinking about adding some baffles, so all three tubes would get the same cooling.

I'll be needing 2 reducers for the ends.
DANG, they want over $10 after taxes for 1-1/2 to 1" reducers
Making some out of scrap copper is on the list.
$5 material and $100 worth of my labor sounds like a good idea to me.

[shadylane]

RC22
I was thinking a couple of baffles.
How to spread the inner 1/2" tubes apart.
And keep them off the outer water jacket.
At the same time is going to be a problem.
There isn't much room for the tubes and the cooling water.

The shotgun is for a 15 gallon stripper.
And needs to dissipate up-to 4kw.
That seems to be the upper heat limit before puking becomes a problem.

[shadylane]

Finished the three barrel shotgun today.
Still need to clean it up a little.

[shadylane]

Did I say, clean it up, Probably not.
It passed the pressure check, that's good enough for the outside.
The inside that touches alcohol has been wire brushed and is soaking in high proof, once drinkable alcohol.
The mandatory Water, vinegar and sacrificial run will be done in the future.

I might soak the shotgun in backset.
To make it shine. Probably not, but it might happen.
Then I'll get on with the rest of the stripper build.
Pretty is, as pretty does.
But safety rules.

[BlueSasquatch]

Any update on how this ended up working? Trying a similar plan, curious how large the shotgun needs to be, large price jump at the 2" mark.

[shadylane]

It's more than big enough to knock down 6Kw of steam
And steam is harder to condense than alcohol vapor
I also have a liebig of about the same length that's 1" inside a 1-1/2 jacket.
Both are similar in knock down power but I'd recommend the liebig over the shotgun.

[Crabmanstyle]

It's more than big enough to knock down 6Kw of steam
And steam is harder to condense than alcohol vapor
I also have a liebig of about the same length that's 1" inside a 1-1/2 jacket.
Both are similar in knock down power but I'd recommend the liebig over the shotgun.

Can I ask why you prefer the liebeg? I've never used one and have a shotgun, I find the shotgun really efficient on coolant use and it's relatively short.

[Saltbush Bill]

Just my take on this ..shotgun condensers where hardly ever used or seen before people started building Flutes / Bubblers. It seems to me that because they looked good cosmetically hanging off the side of a flute that people kept putting them on. ( In short, eye candy) The Shotgun craze then spread further to pot stills and even some reflux stills. Its got to a point now that most newbs think they need one or their still is less than adequate. IMO shotty's are huge over kill in 99% of cases.......the average still, pot or flute doesn't produce enough booze fast enough to overwhelm a well built liebig.
If you are into stripping at faster than 12-15 L per hour then there may be reason to run one.
Those who market Shotguns commercially are only too happy to sell you one as a modular piece. Those who build their own will know how much harder it is and how much more time consuming it is to build a Shotty rather than a simple liebig that can do the same job in most cases.
Off my soap box now.

[Crabmanstyle]

Just my take on this ..shotguns condensers where hardly ever used or seen before people started building Flutes / Bubblers. It seems to me that because they looked good cosmetically hanging off the side of a flute that people kept putting them on. ( In short, eye candy) The Shotgun craze then spread further to pot stills and even some reflux stills. Its got to a point now that most newbs think they need one or their still is less than adequate. IMO shotty's are huge over kill in 99% of cases.......the average still, pot or flute doesn't produce enough booze fast enough to overwhelm a well built liebig.
If you are into stripping at faster than 12-15 L per hour then there may be reason to run one.
Those who market Shotguns commercially are only too happy to sell you one as a modular piece. Those who build their own will know how much harder it is and how much more time consuming it is to build a Shotty rather than a simple liebig that can do the same job in most cases.
Off my soap box now.

Thanks SBB. A good explanation. Mine comes nowhere close to being overwhelmed in a 6 litre per hour stripping run and was a bit*h to build.

[BlueSasquatch]

Good to know! I have been trying to decide between a shotgun or liebig, I currently have a worm and flake on a 6 gallon copper pot, everything made from scratch and it works fairly well, but I do need to circulate the water towards the middle of the run, not a big deal, makes a bit of a mess, need to add some hose ports.
Wanting to make a stripping keg still, so 15 gallons with probably a 5 gallon (1/6th I think they are called) keg, then a condenser. Powered by a 220v 5500watt I think. Had plans drawn up for a 3/4" w/1" jacket but unsure on the length, adding the thumper brings the header back closer to the table/ground, so a lengthy Liebig doesn't fit as nicely, shotgun was then looked at. Yours is 29" but maybe a 24" could work well still?
What made you settle on 1" inside a 1.5" I thought I read somewhere about the larger you go, the less efficient it becomes.

[Crabmanstyle]

Good to know! I have been trying to decide between a shotgun or liebig, I currently have a worm and flake on a 6 gallon copper pot, everything made from scratch and it works fairly well, but I do need to circulate the water towards the middle of the run, not a big deal, makes a bit of a mess, need to add some hose ports.
Wanting to make a stripping keg still, so 15 gallons with probably a 5 gallon (1/6th I think they are called) keg, then a condenser. Powered by a 220v 5500watt I think. Had plans drawn up for a 3/4" w/1" jacket but unsure on the length, adding the thumper brings the header back closer to the table/ground, so a lengthy Liebig doesn't fit as nicely, shotgun was then looked at. Yours is 29" but maybe a 24" could work well still?
What made you settle on 1" inside a 1.5" I thought I read somewhere about the larger you go, the less efficient it becomes.

Handy calculator here that might be of help to you.

https://homedistiller.org/wiki/index.php/htm/calc ... d_calc.htm

[shadylane]

Can I ask why you prefer the liebeg? I've never used one and have a shotgun, I find the shotgun really efficient on coolant use and it's relatively short.

A shotgun makes for pretty copper porn and it's shorter than a liebig.
A liebig or a dimroth is easier to make and less likely to have internal leaks.
A dimroth can be made as short as a shotgun and still be efficient.
That's important when used as a dephleg or RC
Once upon a time all the reflux condensers used here, were of the dimroth design.

For use as a product condenser, it's hard to beat a simple liebig
When it comes to effientcy bigger and longer works the best
That's why I'd recommend a 1" inside a 1-1/2" liebig

[shadylane]

What made you settle on 1" inside a 1.5" I thought I read somewhere about the larger you go, the less efficient it becomes.

Kinda late answering.
Compared to smaller tubing, 1" has a slower vapor speed. That gives the vapor more time to condense.
1" tubing also has more surface area than 1/2" or 3/4"
I once built a 1.5" inside of a 2" but it didn't seem to work any better than a 1" inside the 1.5"

[Reefer1]

Shady. I had already built the heat exchange core before i thought of posting, but yes 42mm is the water jacket outer tube, i used what i had in the shed, so my core is 2x24" 15mm and 2x24" 8mm tubes built the core similar to yours. So i have 2 different sized tubes.
I finished the build today so i will post pics and commentary soon.