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View Full Version : Been away a while but but what is the deal


IYIENACE
07-27-06, 04:12 PM
with all the WC loops now where people are going pump > rad? I thought it was determined long ago this was bad for flow rates? Has there been a change in this? Also it seems there are many less veteran forum users posting here in this section!
:confused:

nicspits
07-27-06, 04:36 PM
yeah that was back in the day before it was determined that flow rates arent affect very much and that flow rates also barely affect temperature (when people were using pumps with little to no head). so yeah, pump, rad, cooling, res has proven to be the most efficient setup unless you've got a fan worse then via aqua 1300s ;)

Zx2Slow
07-27-06, 04:52 PM
Wait im confused, I have always made my loops:

Pump->Rad->Waterblock(s)->Tee/Res->Back to pump

Whats wrong with that?

Shell
07-27-06, 05:19 PM
My layout is pretty funky... coolant HS pool thing-->res-->pump-->CPU-->rad-->GPU-->rad-->chipset--> back to #1
I have a pool of chilly anti-freez (with a pond pump providing the circulation between the evap HS and the liquid gallium HS... then to the little res.
I'm useing 1/4'' tubing because... that's all I need with my setup :p
But the waterblocks are actually made for 1/2'' tubing, wayyy too many places to spring a leak.

The contailer with the evap and HS looks like this(asci art ftw):
(pretend the "===>" is just the anitfreeze flow in a loop, and the 2 lines on top and the bottom are just the pipes from the compressor and my liquid cooling HS)
...........|...|
........./###\
===>####===>
.........\###/
...........|...|

I've tried pump to rad... and it was no better or worse, but the layout was less convient for me so I went "my" way.

there are many less veteran forum users posting here in this section
Mabe it's because they became a "veteran"... I'd never spend that much time on a forum...

batboy
07-27-06, 06:00 PM
I still use the traditional tried and true loop:

reservoir > pump > block > radiator

Captain Slug
07-27-06, 06:56 PM
Put them in the order that will make the loop shortest without any tight bends. The only placement that's critical is putting the T-line or Reservoir as close to the pump inlet as possible.

hitbyaprkedcar7
07-27-06, 07:01 PM
Im using the most logical way (for me)
Pump > cpu > gpu > gpu > rad > res

Shell
07-27-06, 08:04 PM
Im using the most logical way (for me)
Pump > cpu > gpu > gpu > rad > res
Either you have a huge rad, or you need a huge rad. :p

Senater_Cache
07-27-06, 08:40 PM
Either you have a huge rad, or you need a huge rad. :p
what?

with all the WC loops now where people are going pump > rad? I thought it was determined long ago this was bad for flow rates? Has there been a change in this? Also it seems there are many less veteran forum users posting here in this section!
:confused:
That current pump>rad phenomenon is based on the true but negligible effect of the rad cooling the coolant to its coolest before reaching the absorption points (blocks) by radiating some of the lingering and pump-added heat.
Test data exists to prove that the in and out temps of the rad differ by <1C by far, thus making this a purely habitual and/or shortest-loop decision.

Like CaptainSlug said, shortest tubing lenght is desirable as tubing priovides a substantial pressure drop in comparison the the dT between component orders.

There are less veterans here nowadays, because either they have gotten tired of the hobby in general and moved on or have gotten tired of the ultra repetitive noobage/zero research attitude that too many of the new members have here at OCF have. They are still around , just not here.

hitbyaprkedcar7
07-27-06, 09:05 PM
Either you have a huge rad, or you need a huge rad. :p

got a 120.3 BIP

IYIENACE
07-27-06, 09:36 PM
That current pump>rad phenomenon is based on the true but negligible effect of the rad cooling the coolant to its coolest before reaching the absorption points (blocks) by radiating some of the lingering and pump-added heat.
Test data exists to prove that the in and out temps of the rad differ by <1C by far, thus making this a purely habitual and/or shortest-loop decision.

Like CaptainSlug said, shortest tubing lenght is desirable as tubing priovides a substantial pressure drop in comparison the the dT between component orders.

Yeah with impingment blocks seems having pump head as close to the block/least pressure drop as possible gave the best temps. Oh well to each their own.

There are less veterans here nowadays, because either they have gotten tired of the hobby in general and moved on or have gotten tired of the ultra repetitive noobage/zero research attitude that too many of the new members have here at OCF. The are still around , just not here.

Thats too bad. A lot of those guys (like Cathar for example) have forgotten more than most will ever know when it comes to W/C. :-/

voigts
07-27-06, 11:57 PM
or have gotten tired of the ultra repetitive noobage/zero research attitude that too many of the new members have here at OCF have. They are still around , just not here.

I haven't been around that long myself really, but I hate to admit that I find myself in this category more and more lately. I really do tire of the "I'm new, I haven't taken 5 minutes to read anything, my buddies' thermaltake bigwater rocks, please spoon feed me an entire setup with no information from me." This really is why I am not posting as much lately and just skimming more thread subjects.

With the DDC/D5 type pumps the head pressure is so good that putting the rad after the pump is not going to really make an impact to speak of. And I also have yet to see that using slightly longer runs of tubing with gradual curves is going to make any difference at all. We all talk about having short runs, but seriously, with a pump that has like 13'+ feet of head pressure, what difference is 6' over 4' or tubing going to make?

Captain Slug
07-28-06, 03:40 AM
There are less veterans here nowadays, because either they have gotten tired of the hobby in general and moved on or have gotten tired of the ultra repetitive noobage/zero research attitude that too many of the new members have here at OCF have. They are still around , just not here.
That or they move onto more complex topics that this board doesn't really cover in depth very often. I went to ProCooling to research DIY block design and machining and others go to XS to read more on phase change, DryIce/LN2, and peltiers.
With the DDC/D5 type pumps the head pressure is so good that putting the rad after the pump is not going to really make an impact to speak of. And I also have yet to see that using slightly longer runs of tubing with gradual curves is going to make any difference at all. We all talk about having short runs, but seriously, with a pump that has like 13'+ feet of head pressure, what difference is 6' over 4' or tubing going to make?
Well it's more about avoiding kinks and overly sharp turns. And since there's really no reason to put the components in a certain order it makes it simpler to avoid such potential problems.
It's about avoiding bending over backwards (and in doing so creating a problem) while attempting to eliminate a problem that isn't really there.

greenmaji
07-28-06, 03:50 AM
@Shell.. air makes a much better insulator then conductor, no rads would = better OC's.
That should be a chiller, not a WC loop ;)

voigts
07-28-06, 10:51 AM
Well it's more about avoiding kinks and overly sharp turns. And since there's really no reason to put the components in a certain order it makes it simpler to avoid such potential problems.
It's about avoiding bending over backwards (and in doing so creating a problem) while attempting to eliminate a problem that isn't really there.

All I mean is that some people really seem to stress about where they put things in a case just because doing so may take 1' more of tubing. Excess tubing can of course cause kinks and such, but I just mean that it makes more sense to put things in places that work well and not worry so much about that extra foot or two of tubing if needed.

nikhsub1
07-28-06, 11:27 AM
Put them in the order that will make the loop shortest without any tight bends. The only placement that's critical is putting the T-line or Reservoir as close to the pump inlet as possible.
This is all one needs to know... loop order is not important at all with the exception of where to place a res or t line.

As for the other comments, I've been around forever it seems... The n00bs seem to come in waves and there is nothing wrong with n00bs, we all were at one point. For me it is nice to see a n00b grow into a veteran and then turn into a solid member with a good understanding of the hobby.