Completely silent air-cooling?

Today I was browsing around [H] for tech news, & came across a piece on water cooling through electro-osmosis. It was an interesting read. The idea of a system being cooled by a completely silent system seemed intriguing, however that person at the end of the article did make a good point about the potential hazzards of mixing water & electricity.

So I began to wonder whether it was possible to engineer & perhaps even build ourselves a completely silent air-cooled system?


A couple weeks or months ago, I remember reading a piece on [H] about something called "lifters". As some of you might already know, these were small lightweight crafts that would "hover" in the air when electricity was passed through it.

People then began theorizing on exactly how these things worked. They talked about all sorts of bizzare things ranging from an "anti-gravitational" force, to some kind of inter-dimentional form of movement or some such.

And then someone from NASA came forth & did a couple of experiments himself on whether any of these theories were true, or whether it was simply as he had suspected all along, that it was hovering by using air itself. He placed a lifter inside a transparent vacume cylinder/box, & turned the current on. If all the theories were right, the lifter should lift, regardless of whether there was air or not. If the NASA person was right however, it wouldn't twitch at all.

After the current was switched on, the lifter didn't move or twitch one bit. It just sat there. So then, lifters were able to hover, because it "pushed" air down much like a hovercraft or a helicopter would. He even put his hand under one & "felt" the air moving.


So as you can probably imagine, it could possibly be used to cool a processor or whatever else a system had. Unfortunatly I don't have a clue on exactly how much power these things would need, or exactly how much thrust it would produce, but do you think it could be done?

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Get your own sig!!!

You could probably get a simple phase-change system to run pretty near silently. Admittedly it would be large.

Heck sure, if you make a heatsink large enough it wouldn't need a fan. I could make you a completely silent heat exchange system for under $100 right now but it would be frickin huge!


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Just mount a "heat engine" to your CPU and use it to generate power to supplement what it uses.

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Here's someone who built a home made phase change CPU cooler <A HREF="http://www.benchtest.com/heat_pipe1.html" target="_new">http://www.benchtest.com/heat_pipe1.html</A>.

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Knowan likes you. Knowan is your friend.

I've seen these things many times, they're called heat pipes and operate on the same priciple as those giant cooling towers at nuclear power plants. Refrigerators/air conditioners also works on the principle of evaporation/condensation, only use a compressor to increase their power (compress a gas, condense it to liquid, release the pressure in the evaporator). Wheras heatpipes use no compressor and rely on boiling the liquid.

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