Prototyping Sidearmd T1, CNC + AIO + 9.35L

Allhopeforhumanity

Airflow Optimizer
May 1, 2017
311
324
As I understand it, the issue has more to do with the proportion of liquid in the tube that is in close proximity to the walls of the copper (for more efficient heat transfer). The total tube length is typically also reduced if I remember right (which I definitely may not). That will contribute to less restriction, which would be great if you're limited by a weaker pump, but will hurt performance if you're not. Further back in the thread, Wahaha360 ran into this very issue while testing custom radiators.
The thermal gradient in the fluid will definitely be affected by channel diameter, but the convective heat transfer coefficient is also a product of flow rate and surface area. Larger tubes will have more contact area and less flow restriction with generally drives the convection coefficient up for the same pressure head. The length will be reduced slightly by the allowable radius of curvature for the bends at the larger diameter; unless of course the tube is so "wide" that you have fewer channel runs, so there will be a trade there.
 
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incunabula

Cable Smoosher
Jun 14, 2019
11
14
The thermal gradient in the fluid will definitely be affected by channel diameter, but the convective heat transfer coefficient is also a product of flow rate and surface area. Larger tubes will have more contact area and less flow restriction with generally drives the convection coefficient up for the same pressure head. The length will be reduced slightly by the allowable radius of curvature for the bends at the larger diameter; unless of course the tube is so "wide" that you have fewer channel runs, so there will be a trade there.
That makes sense if the round tubes typically found in radiators are actually larger than their flattened counterparts. I just always assumed that the volume was about the same between them.
 

AMv8-1day

Cable-Tie Ninja
Feb 13, 2017
153
119
man, some days I think I should just dump the 240 radiator support or remove it from spec like a secret feature.

I really need to create a 120 radiator kit that’s better than all these 240mm aluminum radiator kits.
Watching people ask about once per page about coolers besides the LT240 has got to be incredibly annoying.
That said, I really think laying out solid L/W/H limitations on the radiator space, CPU, and GPU clearance (2-slot/3-slot config) would be an easy way to avoid the constant nagging about "Will X work? What about Y? Have you tested Z?".
Give people the boundaries and when the case is ready for release, they can test it for themselves instead of hassling you constantly about every radiator and pump under the sun.
 
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gwertheim

SFF Lingo Aficionado
Nov 27, 2017
113
66
For those of you looking for the Alphacool Eisbaer LT240 in the US, you can get it from Titan Rig:

https://www.titanrig.com/alphacool-eisbaer-lt-aio-cpu-cooler-240mm-radiator-black-0315ac010801on.html#

Very low stock though!

Or I am willing to repackage it in a blank box and send it south of the border as long as all fees are paid for. Pm me if interested
 
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schn1tt3r

SFF Lingo Aficionado
Sep 24, 2018
97
190
I already have the eisbaer, but all images I've seen show that AIO with custom tubing. Will the stock tubes fit in the case too, or must we mod the AIO?