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Tubing OD - Page 2

post #11 of 22
Great link Martin !

I hadn't seen that chart before. Very helpful !
post #12 of 22
Thread Starter 
I agree, wish I had stumbled across that 8 hours ago

Since you guys have provided my outstanding information, I'll be the first to derail my thread and take it in a little different direction, so I don't have clutter the forums with another thread.

My little *project* (I'll reiterate) is going to consist of a Nautilus 500 with the addition of a MCR 120 rad and an Apogee GT block, the pump will be stock, it's a Laing DDC pump (92.4 GPH)

What I'm trying to accomplish, is have a nice little external unit (I get hydrophobia when it comes to more than a water block in my case) that would have the potential to keep a quad under control(below 60c load)

I fear that under the heat of a quad, Mr. Zlaman would start screaming and soon after burst into flames and cause a melt down

My pc room is regulated by central air to 70F, meaning the ambient aspect is covered. The goal would be a modest 3.0, while staying under the 60c threshold. I'm well aware that vcore will have a heavy hand in the temps encompassed with *luck of the draw*

Here is where I ask for your opinions, if you feel I'm off my rocker while having unrealistic expectations, by all means say so, it wouldn't be the first time my sanity has been in question

Thanks all,

Flinch
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post #13 of 22
Neahaaaa. You got a good grip on the reality of WCing. I have a 5150Btu vertical flow window unit
w/a totally external WC system that consist of a 3 liter DIY res, D5 vario, dual Bonnevilles and
Stinger WB in the loop. And @ 71ºF ambient room with the heater cores slammed back to
back ontop of the A/C, via plexi shelf, it idles @ -8ºC and loads @ 16ºC with A/c on and e6600 @
3.6Gb w/1.38Vcore.

It runs the same ambient room w/o AC @ 15ºC Idle and 26ºC full load. Just don't hesitate to experiment.
  
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post #14 of 22
This is off topic, but....

Flinch, I like your choice of wording in everything you say. I wish more people on here had English under their belt like you do, lol. It always helps when you can understand what someone is saying so you can help them out better. Anyway, sorry for the off topic, but I just had to put that in here....
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post #15 of 22
I modded out one of those with a BIP 120 in it...Put a Radiical Turbo-Top on the pump thats the only after-market top you could get then...Boxed the rad in on the sides from the top of the rad to the bottom of the top of the case with coil-stock and put a 108cfm Sunnon in it..Cut a Swifty micro res into the front of case...It was a pretty neat little unit...I used one of the old Apogee cpu blocks on it...It cooled OK nothing great....I should of just put a 240 rad on the back of my case and left the 120 rad out of the Nautilus I would of had more room in it that way..I gave the pump and top combo to a guy and then I gave away the rest of it to a friends son...He is wanting me to help him build a bigger WC'ing rig...I might get it back from him and use it as a GPU cooler or something. ...
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post #16 of 22
Does anyone (like Martin lol) have a link to a table that shows how much less effective a loop is with 3/8 ID vs 1/2 ID. I have always questioned this factor as being critical. I would guess that with a low restriction rad and WB and high flow pump the difference in C would be small. Obviously it adds restriction; but this would also increase the speed of the folow--if not the volume--which might increase the efficacy of some WB types.
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post #17 of 22
Have you seen Cathars new work on tubing sizes? Using 3/8" with compression fittings isn't supposed to be that much of a hit..


...The impact of tubing sizes
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post #18 of 22
No I have not thanks!
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post #19 of 22
Quote:
Originally Posted by CyberDruid View Post
Does anyone (like Martin lol) have a link to a table that shows how much less effective a loop is with 3/8 ID vs 1/2 ID. I have always questioned this factor as being critical. I would guess that with a low restriction rad and WB and high flow pump the difference in C would be small. Obviously it adds restriction; but this would also increase the speed of the folow--if not the volume--which might increase the efficacy of some WB types.

Yeah, as Cathar points out tubing size ID is not the all important we generally think. The only part I don't like with his comparison is that it left me with the original impression that tubing size doesn't matter but flow rate does. It's not so much that tubing size doesn't matter that much, it's flow rate above about .7GPM doesn't make much difference when comparing temperatures.

Tubing does have frictional loss and it is important, it just happens to be one of the more "User Controlled" variables, and when you start comparing how a water block performs at 1GPM vs 2GPM the difference is really small when talking core temp. Thermal performance of most water blocks doesn't start to really drop off until you get down in the .5GPM range, and I think the main reason it does is that starts approaching the point where water switches over from a turbulant state to laminar flow and all those little water molecules are being tossed about enough to impact the walls of the block as well as the radiator.

I'm working and have a few components plugged into a flow rate estimator spreadsheet I'm going to publish pretty soon here, this will let you play around with tubing sizes, pumps, and components and give you an estimated flow rate. So far it's has been correlating really well to my real world results and should be a useful fun tool.
    
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post #20 of 22
Yay.

I think in terms of plumbing convenience quick disconnects and 3/8 would be a lot nicer to work with.
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