BrainEater
Industrial
Hello , I'm new here.....I must say a resource like this is a great find.
Let me start out by saying , I'm pretty much a cryogenics newb , an 'avid hobbiest' lets say
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I Have some questions about building a small tank to potentially hold/circulate liquid nitrogen .
It'll help the conversation if I provide some background.
I do computer casemodding/design.
A few years ago I made a computer case from scratch that was designed to submerge a computer in liquid coolant. see;
Now , while it worked perfectly for 4 months , the temps were not what I was after .
I have done further work ;
Thats a computer running submerged in 99%iso with dry ice.

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This leads me to my questions.
I am building a new tank , because I'm pretty sure this one won't do below -50 c .
- size =( 12"h x 17"l x 7"w )
- It must have a 'window' on one side.
- It's gotta have some sort of removeable piping system for coolant flow / gas exchange...this means fittings n whatnot.
- Related to the above 2 ; all seals need to be fully resistant to 99% isopropanol , with luck LN2........
My initial design would be a welded aluminum box with a re-enforcement rings on both top and side for a bolt on window plate and the drop in motherboard holder.
-Is 1/4" aluminum plate acceptable for what I want to achieve ? Is thinner better ?
-I'll need seals/O-rings for the top and window.What materials should I be looking at ?
-same goes for the piping.I was considering soft copper lines.Galvanic issues aside , any other problems ?
-What about fittings ? brass ok ?
---
Thanks For any input !
=D
Let me start out by saying , I'm pretty much a cryogenics newb , an 'avid hobbiest' lets say

--------
I Have some questions about building a small tank to potentially hold/circulate liquid nitrogen .
It'll help the conversation if I provide some background.
I do computer casemodding/design.
A few years ago I made a computer case from scratch that was designed to submerge a computer in liquid coolant. see;
Now , while it worked perfectly for 4 months , the temps were not what I was after .
I have done further work ;

Thats a computer running submerged in 99%iso with dry ice.

-------------
This leads me to my questions.
I am building a new tank , because I'm pretty sure this one won't do below -50 c .
- size =( 12"h x 17"l x 7"w )
- It must have a 'window' on one side.
- It's gotta have some sort of removeable piping system for coolant flow / gas exchange...this means fittings n whatnot.
- Related to the above 2 ; all seals need to be fully resistant to 99% isopropanol , with luck LN2........
My initial design would be a welded aluminum box with a re-enforcement rings on both top and side for a bolt on window plate and the drop in motherboard holder.
-Is 1/4" aluminum plate acceptable for what I want to achieve ? Is thinner better ?
-I'll need seals/O-rings for the top and window.What materials should I be looking at ?
-same goes for the piping.I was considering soft copper lines.Galvanic issues aside , any other problems ?
-What about fittings ? brass ok ?
---
Thanks For any input !
=D