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View Full Version : What liquid is the best for liquid cooling system


Tebore
08-16-01, 04:40 PM
For all u liquid CPU coolers out there, what is the best type of liquid to put in to a liquid cooling system? i.e. water/coolant 50/50, just water, oil, alcohol or I hear Liquid Nitrogen.

William
08-16-01, 04:49 PM
Liquid Nitrogen requires expensive equipment. Water is the best with about 10% Water Wetter and 5% Antifreeze.

Billvill
08-16-01, 06:10 PM
Is this a trick question ?


Billy

Coolio
08-16-01, 06:41 PM
Umm i just read that make your own bong (waterfall coller tower) atricle that they have on this site and the author said that you should just use water. That particular method uses evaporation to cool so just water is the best way to go. But i guess it depends on the type of cooler.

LOL liquid nitrogen!!! Isn't that a bit too cold!! Like negative 365 C
Or you were just joking:rolleyes:

cjtune
08-17-01, 06:52 AM
I remember that there was a thread about 30 replies long back some time ago on this very same question and ppl brough up many interesting possibilities -try searching for it.

Crash893
08-17-01, 08:03 AM
Originally posted by Tebore
For all u liquid CPU coolers out there, what is the best type of liquid to put in to a liquid cooling system? i.e. water/coolant 50/50, just water, oil, alcohol or I hear Liquid Nitrogen.


Yea I've seen like 3

You wont believe how many people jump down your throat to tell you how bad liquid nitrogen is

If you really want to get them going say you want to uses mercury
Every one needs to tell you how dangerous that is


I think its a good idea I have a couple posts with my ideas for a mercury pump/heat sink on there.

Anyway I say damn the liquid nitrogen filled torpedoes and full speed ahead

RedDeathDrinker
08-17-01, 08:59 AM
Depends how far you want to cool the liquid. I saw pics of a guy who used a chest freezer as a resevoir, using a 50:50 water/antifreeze mix (I think it was on the main pages of here, actually). Consult a table of specific heat capacities, and choose a liquid that meets your requirement for temperature and has the highest specific heat capacity (ie, rate of heat absorption)

funnyperson1
08-17-01, 09:23 AM
at pcrivals.com they used a fridge and they circulated alcohol....why doesnt anyone use alcohol???....if you had a sealed system and you could really chilll the liquid alcohol would be the best...also it is non-conductive

TweaK-FreaK
08-17-01, 09:34 AM
I've seen the great overclocks with liq. nitro. try a 566 cellery @1.4gig......thats amazing!!!!!but anyway I just thought I would say that

Tebore
08-17-01, 11:18 AM
FunnyPerson has a good point how come ppl don't use alcohol? It don't freeze, eats up heat and is cheap. Somebody tell us why ppl ain't using alcohol.

azhari
08-17-01, 11:24 AM
Where I work at, we typically cool silicon detectors for high energy particle detection. Alcohol is used only when we need to cool things down below water's freezing point, because it's HIGHLY flammable. Imagine a small leak inside your case and KABOOM :eek:

Patchmaster
08-17-01, 05:06 PM
I don't have a water cooler, but this thread got me interested and I did a little research. It took a lot of digging but I eventually found a couple sites that listed the thermal properties of a number of fluids typically used to transfer heat. From what I could see on these sites, plain old water is very good at transferring heat. Unless your cooling system has requirements that prevent the use of water (such as operation at very low or very high temperatures), there's really not a good reason to use anything else. Water is cheap, readily available, non-toxic and non-flammable. De-ionized water is even non-conductive.

I think the bottom line is that water is a pretty good fluid for this application. Any money you'd spend on better heat transfer fluids would clearly be better spent on bigger fans or a better radiator.

Oright
08-17-01, 05:10 PM
Originally posted by Coolio
Umm i just read that make your own bong (waterfall coller tower) atricle that they have on this site and the author said that you should just use water. That particular method uses evaporation to cool so just water is the best way to go. But i guess it depends on the type of cooler.

LOL liquid nitrogen!!! Isn't that a bit too cold!! Like negative 365 C
Or you were just joking:rolleyes:

Hehe, I think hes been reading too many of my posts......

William
08-17-01, 05:36 PM
Mercury is increadibly dangerous, I have talked with my chemistry teacher about that. Plus it has an extremely nasty tendency to immagalmate metals and find all sorts of places to leak from. Alcohol is poor at transfering heat. It feels cool to us because of the evaporative cooling it uses, but it doesn't do that in a water block. Water is superb at transfering heat, is even cheaper, and can be doped to freeze at a lower temperature.