Discussion in 'Article Discussion' started by WilHarris, 1 May 2006.
Sounds interesting, although the CPU would need to be kicking some serious heat out if they were using water...
surely the cpu would have to be way above 100 celsius to do this? i dont know of any chips that can safely fun at that temp. do you?
unless they use a different liquid that has a lower boiling point such as the various types of alchohol
I posted a similar article in the Extreme Cooling forums in March. The kind denizens of Bit-Tech already pointed out several flaws. Of course, it seems like the idea is still in its infancy; who knows what these scientists will come up with in the near future?
Wouldn't have thought so. 100 degrees celsius is when water turns into a gas but you get water vapour which this uses from anything above zero. Higher the temprature the more water vapour (with the same amount of time and water in the system) hence the more this system would shift. If this wasn't the came how would get humidity? Also many of you are forgetting that water can change states not on due to heat but also due to pressure so in a pressurised system these tempratures would be much lower.
How far do we have to go to get from one droplet to about 300ml of liquid ?
It'll be some time before this is performance cooling.
At the moment, and thats even after it works I can only seeing this being for uber-silence.
I'm very interested in this particular statement...
Currently laptops use external heatpipes attached to the chip to provide cooling, but these require additional power and generate heat themselves.
additional power? generate heat? As far as I know the heatpipes in laptops are exactly that, heatpipes... A copper tube containing some sort of low dewpoint cooling media and possibly some added sintering or other capillary effect enhancer on the inner walls, no added power, no added heat.
To be honest I have some problems seeing the revolution here.
The process works in a similarlyl to who water reacts when water droplets are dropped onto a steaming pan.
Well despitre the doubts whether it works like someone mentioned it's new, I hope they improve this discovery to make it viable for use in Computers of the future, sounds very interesting anyway...
Last time I checked, there are no pumps in heatpipes. All the laptops I've built (most of the Sager lineup, several Uniwills, and an ASUS) have heatpipes with no pumps.
For that matter, what is an "external heatpipe"?
It's a public holiday in the UK today and it seems editorial focus wasn't where it should've been. The story has now been edited so it actually makes some sense.
To clarify, laptops use heatpipes, which have nothing to do with pumps, or watercooling for that matter. The original text quoted by Techno-Dann appears to refer to Thermo Electric Coolers (TECs) otherwise known as Peltier Coolers. These a) require lots of current, b) generate heat themselves and c) are often watercooled themselves, using a pump.
Apologies for the confusion.
The byproduct of shoddy research.
Keep in mind that in a mild vacuum, water boils at room temperature. To demonstrate this, take a clear plastic syringe, fill it with water about halfway, cover the opening with your finger and pull the squeegee thing back further.
Nonetheless, it's a very cool thing and hopefully will end up being more than some stupid research project.
I wonder how much force/pressure something like this can operate under. Seems like applying this discovery to watercooling it wouldn't have enough pressure to move quickly enough through the blocks and radiators to be efficient. cool idea though!
Hmm, if you need something really hot to move it - Peltiers might just be the solution aswell as lowering temps for the processing unit itself.
Therefore completely defeating the point. If you're gonna use a peltier, use a peltier. The idea here is pumpless watercooling without the need for a reservoir, meaning it can be used in things like laptops, and it will eliminate the noisiest and most touchy component in a watercooling system.
Nonetheless, it's nowhere near practical right now. Maybe in 10 years, but not right now. It's basically a heatpipe with water, meaning it cools better, as the general physics behind a heatpipe are that it transfers heat regardless of angle, direction, etc. etc.
i cannot see the video >.< damn.....
Seems like we're posting weird and useless facts about water... So did you know that pure water won't boil in the microwave, and will become super heated, so that when you take it out it will be well above 100 celcius. Then if you add an impurity say a teaspoon of sugar it will instantly and violently explode into boiling.
--The more you know.... and didn't care.
Sounds very much like capillary action
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