Any interest in Aqua-Computer water cooling?

[SNTmods]

I was just wondering what you guys thought of this stuff and if anyone was still looking for a source in the U.S. for deliveries.

-Dan

[Dr.Evil]

their aqua tube reservoir loks real nice

[gone_fishin]

Is this a loaded post?

[TerraMex]

http://www.aqua-computer-systeme.de/ .
He means these.

[Joe]

Yeh I get the feeling this is a store/distro looking for info so he knows to stock/not stock the goods.

Probably would be better if stuff like that was explained that in the first post.

[Blackeagle]

I don't see where any particuler item would have much, if any, advantage over some of the blocks already sold here. And with shipping from Germany to the US to consider, I think it would be hard to compeat due to costs.

But Lord knows, I've been wrong before!

[SNTmods]

okay, basically I was just wondering what was thought of this stuff so I could compare with my own findings. I own a Cuplex Evo CPU block, Twinplex N/B block, Eheim 1046 (12v version), Aquatube reservoir and lastly a modded Black Ice II with removable fittings. All this flows through 6mm ID tubing, seems small huh? I have found that they actually perform very well as compared with U.S. systems using 12mm ID tubing.

And Im not advertising for these products, Im just looking to cause discussion and perhaps answer some questions.

I am part of a store which already stocks them so looking to find out what I should stock is out of the question. Im trying to keep the business out of this so be nice.

-Dan

[rocketmanx]

Wether you're pimping for biz or not isn't a concern of mine since I've been looking for somewhere to buy this stuff in the states. I'm into style as much as performance and that stuff is awesome. Built very well.
Saw this stuff in Scopedogs PRIME box. Been wantin' it ever since.

[SNTmods]

Originally Posted by rocketmanx

Wether you're pimping for biz or not isn't a concern of mine since I've been looking for somewhere to buy this stuff in the states. I'm into style as much as performance and that stuff is awesome. Built very well.
Saw this stuff in Scopedogs PRIME box. Been wantin' it ever since.

What is this Prime Box that you speak of?

[rocketmanx]

Prime's a box built from 80/20 extruded aluminum (made about 10 minutes from here ) and is all redundant.

On page 3 he gets the water cooling stuff.

Prime

[SNTmods]

very nice case and components, I really like!

Anyways, RocketManX and Dr. Evil have PM.

[BENdage]

i cant understand german, but the names are good, and the pictures look nice too. Like someone already said the res looks great

[SNTmods]

Originally Posted by BENdage

i cant understand german, but the names are good, and the pictures look nice too. Like someone already said the res looks great

Take a look at SNT-SYSTEMS.COM

[nexxo]

I liked the res so much I converted it for 3/8" ID tubing (I had already committed myself to bespoke blocks using that size tubing). Works like a charm.

[SNTmods]

All the items I receive are availble in that 10mm fitting, (for 3/8" ID tubing) as many people dont use the other types of fittings in the U.S. Hopefully that will change in the coming future. Let 6mm ID tubing reign supreme over "bigger is better."

[bigben2k]

Originally Posted by SNTmods

All the items I receive are availble in that 10mm fitting, (for 3/8" ID tubing) as many people dont use the other types of fittings in the U.S. Hopefully that will change in the coming future. Let 6mm ID tubing reign supreme over "bigger is better."

It's not that simple.

3/8" ID is a minimum requirement, for an average system, so that the tubing doesn't become a significant restriction.

1/2" ID minimum is for those "extreme" water coolers, with flow rates ~2 gpm.

There's really no point in 1/4" tubing, unless the cooling loop is space restricted (aka water cooling a Shuttle, or rack mount unit), IMO.

[SNTmods]

Originally Posted by bigben2k

It's not that simple.

3/8" ID is a minimum requirement, for an average system, so that the tubing doesn't become a significant restriction.

1/2" ID minimum is for those "extreme" water coolers, with flow rates ~2 gpm.

There's really no point in 1/4" tubing, unless the cooling loop is space restricted (aka water cooling a Shuttle, or rack mount unit), IMO.

Incorrect Information, Low Flow systems like 1/4" tubing corrects it's "flaw" of being too small by actually having a longer time to cool of through the radiator. High Flow systems tend to move a lot of water but sacrifice the cooling capability through the radiator.

All Im saying that there are different approaches, If something is being cooled just as good as the next, where's the problem? Size doesnt matter.

[Groth]

Originally Posted by SNTmods

Incorrect Information, Low Flow systems like 1/4" tubing corrects it's "flaw" of being too small by actually having a longer time to cool of through the radiator. High Flow systems tend to move a lot of water but sacrifice the cooling capability through the radiator.

Incorrect Information. Time is not factor in heat exchanger performance. My (high flow) radiators dissipate heat 24 hours a day, if I reduce the flow will they somehow work 35 hours a day?

Temperature gradients/differences are what matter. Air flowing through the fins of a rad absorb heat due to a temperature difference. Heat flows from the inner surfaces to the outer surfaces of a rad due to temperature gradient. Water flowing through a rad looses heat due the temperature gradient across the boundary layer. Time is not a factor.

When you decrease the water flow you increase the temperature difference between inlet and outlet. Those lower outlet temperatures have a certain naive appeal, but keep in mind that temperature averaged through the radiator will be the same (else the rad wouldn't be at equilibrium). Likewise, water temperature averaged through the waterblock will be the same with high or low flow. In the meantime, you've sacrificed the demonstrable performance advantages of high velocity, high turbulence water in your waterblock.

[rocketmanx]

Gotta disagree with you Groth. I've seen cooling time demonstrated in my race cars before with too fast of flow through the rad and the motor running too hot. Slowing down the flow with smaller water lines made the engine run much cooler.

A little scenario-
first one-
You take a pan out of the oven, walk past a fan, and stick it on the counter, pausing before putting ti down.

Second one-
You take a pan out of the oven and stand in front of the fan for a few moments to enjoy the breeze but spend the same amount of total time going from oven to counter with the pan. Which ones gonna be cooler?

[Groth]

A dynamic situation make a very poor model for equilibria. Convert your idea back to water cooling: Some of the time your fan has no hot pan in front of it, when does your radiator have no water in it?

[krazy]

Originally Posted by rocketmanx

You take a pan out of the oven and stand in front of the fan for a few moments to enjoy the breeze but spend the same amount of total time going from oven to counter with the pan. Which ones gonna be cooler?

The second scenario pan will be cooler, but what you are ignoring is that the next pan has to sit in the oven longer while you are dawdling with the one in front of the fan. The next pan gets to a higher temperature and the same amount of time in front of the fan as the pan before will not cool it down to the same level.

Liquid cooling systems are a closed loop. the slower you let the water go through the radiator, the more heat you can suck out of it, but you also have to realize that the water flowing through the blocks has to flow slower as well, making it absorb more heat and counter any real advantage the slower flow through the radiator produced.

Generally, it is considered to one's advantage to run the liquid loop as fast as possible to get the best turbulance and thusly heat transfer inside the water blocks.

The extra heat that doesn't get removed from the water because it passed throught the radiator so quickly will have a chance the second time around. Because it passes by the CPU so quickly, there is less heat per unit water for the radiator to remove.

[Butcher]

The whole slower is better thing is obviously wrong. A very simple example (based on krazy's): If you run it at a given speed you pick up 1 unit of heat in the block and dump 1 unit in the radiator. If you then halve the speed you can now dump 2 units in the radiator (more or less, I've simplified it for clarity). Great, twice as good you think. Wrong. You also pick up 2 units of heat in the water block. The upshot of this is that your waterblock is hotter than before because the water in it picked up 2 units of heat instead of 1. Thus your cpu runs hotter with a slower flow. Once you start also adding in turbulence effects of higher velocity water you see that slow flow is really bad. And the final nail in the coffin is that with restrictive tubing your pump has to work harder to push the water round the loop meaning it will tend to run hotter which further degrades your cooling system.

[rocketmanx]

I'm not quite getting what you mean ther groth with the last example?

I actually agree with the next 2 I was just disagreeing with the idea of the waters flowrate having no impact on amount of heat taken from the water while in the rad. As a system yeah, the stories different.
For a a system to work with a slow flowing rad and a high flow cpu block you'd have and ever increasing backup of water that would have to go somewhere. Even with a res the system is has a fixed amount of water, which is what you're saying Butcher. I was just discussing the rad only

[TerraMex]

http://www.overclockers.com/articles481/

Check the Heat Dissipation vs Coolant Flow.
(http://www.overclockers.com/articles481/index04.asp).

[Butcher]

Something to consider: the radiator is usually not the critical component in a water cooling system. In general radiators used for water cooling are massively over specced for the job. The key element is the water block, and higher flow most definitely increases water block performance. Thus higher flow is generally better.