Another liquid nitrogen cooled water cooled loop

[ChazorGames]

So for obvious reasons i know you cant run liquid nitrogen per say in a water cooled loop. my question/ idea is having a water loop with the lines being cooled with liquid nitrogen. so let me explain a bit further. The idea is to have a liquid nitrogen container with a hollow pass through tubes that coper tubes slide into. the idea is the container chills the copper tubes and the water from your loop would run through the copper tubes. I am aware the water freezing is a high likey hood, however do you guys think its feasible at all?

 

[rubix_1011]

You would be better off using a compressor to chill the water than LN2. Far more feasible and easier to maintain.

 

[JackNaylorPE]

Conquering the 'water-freeze' problem doesn't seem likely. And if it was, you introduce major challenges when you drop surface temps below ambient air, namely moisture in the warmer air will result in condensate being formed. Fun stuff for the lab, but not in any way practical. There is a reason that LN2 practices are they way they are today ... what's now done is based upon 30 years of trial and error and what what's left is what works.

 

[rubix_1011]

Sub-freezing temps would require anti-freezing fluids. Normal water could not be used.

 

[JackNaylorPE]

Even then, LN2 goes well beyond what most coolants can handle.

 

[rubix_1011]

Right, I was meaning that for compressor cooled. LN2, you're just using pots for the nitrogen.

 

[chazor]

Thanks guys I hadn't thought of conensation. I just figured if there was enough space between the copper tube running through and the walls of the actual tube pass through the liquid would chill but not significantly.