anyone tested aquerous film forming water in watercooling?

[slizer]

well, i am not sure if that is the right translation over to english, at my language it is Lett Vann, translated directly to light water.

it is used mostly in fire extinguishers.
that is what woke me up.

i went to that safety course for fishermans and we learnt some things about just that.

then i got the great idea, since the "Lett Vann" dont have a membran, film, pellicle or whatever it is called it might be a good heat exchange! i think i have read about nucelar reactors use it as cooling to but i am not sure about that.

[Bevman]

I don't think I would try it. If memory serves me right. AFF in its proper mixture 94/6 is 2-3 times the cubic area of water alone and therefore lighter than water (hence the nick name light water). This is because the "foam" has allot of bubbles in it, the foam then sits on top of a fire (usually fuel fires) and cuts off the oxygen supply. The air in the foam would hurt a water cooling setup not improve it. IMHO I think that a good air cooled computer would outperform an AFF cooled one.

I don't know about other means of cooling nuclear reactors, but one method is evaporative cooling. This is commonly called a water bong in the WC community. This is actually able to give you temps below that of ambient temperature.

[slizer]

the boubles would be a problem!

thx for reply!

[PROkillernoodle]

There is a type of fire extinguishing fluid that would be perfect for watercooling, or probably immersion cooling. The stuff is like water, but doesnt make things wet. It is used in large computer complexes where it is necessary that fires be put out without electronics being damaged. A demonstration of the liquid consisted of a guy dropping a laptop in it (that was turned on no less) and letting it sit there. The screen worked and everything when submerged. When he took the laptop out, the water just beaded right off and the laptop did not need any drying. I'm trying to find out where to get the stuff right now, but I dont think there is a reseller yet.

[deathBOB]

i dunno, that also means the fluid isnt making good contact with the surface its on, i dont think it would work well...

[Raider84]

it doesnt really need good contact. The die would get hot and heat up the liquid. It not like there is a physical gap between the products, it just doesnt stick to the products. But i the thermal resistance is much greater then water. By thermal resistance I mean the ability to absord heat, the greater the resistance, the harder it is for the liquid to absord heat.

[RoD]

that stuff sounds cool

[eXCeSS]

Coudlnt you direct die cool your cpu with that non-wet water stuff

[sandman001]

You could direct die cool your entire motherboard.

[rudnik68]

Originally posted by Raider84
it doesnt really need good contact. The die would get hot and heat up the liquid. It not like there is a physical gap between the products, it just doesnt stick to the products. But i the thermal resistance is much greater then water. By thermal resistance I mean the ability to absord heat, the greater the resistance, the harder it is for the liquid to absord heat.

But then your chip has to be at or around the boiling point of the liquid. More than likely, thats hotter than ambient +5°C (which should be possible with a good WC setup). Otherwise, you'd be constantly replacing fluid, or need a secondary cooling loop to recondense the evaporated fluid.