Decompressed air

[the gremlin]

I've seen the fridge cooling video and read forum posts about compressed air cooling. 

But I almost hurt myself after cleaning out my PC with a can of compressed air. The can got FRIGID. FREEZED MY FINGERS.

Obviously due to the decompression, just like a fridge. 

Got me thinking, what if the CPU's heatsink was some sort of compressed air container? and during use, it expelled air. Sort of like a fridge. It could be re-compressed while not in use, and function as a heatsink even when empty?

does this exist? would it not work? should I patent it? who wants to get rich with me

[CIubFoot]

I'll get rich with you?

[the gremlin]

Just now, vinyldash303 said:

IIRC, the compressed air is like air conditioner freon. Its liquid under pressure. When it is released to the atmosphere, it sucks heat out of what it comes into contact with. Thats why if you hold the can upside down, and spray it at a doorknob, it will frost up. It will give you frostbite.

exactly, so it could suck the heat out of a processor?

[guestr02]

How exactly would it get re-compressed? And I'm pretty sure canned air is a mixture of nitrogen and some other gasses not the normal air.

[guestr02]

I'm assuming this would probably not work unless you were refilling the compressed air container because i have no idea how you would re-compress it when it isn't in use. The air in canned air isn't the normal air around us anyways. Also re-compressing it I'm guessing would require a lot of energy if it is possible which would make you electricity bill higher than if you just used a normal cpu setup.

 

[mariushm]

CPU produces heat constantly, you're spraying for only a few seconds and producing a lot of condensation and ice on the cpu but this won't last much because the cpu heat would quickly melt everything. You'd have to have a  constant flow of compressed air over the surface of the cpu.

That condensation can be conductive and fall on the motherboard and do damage

The constant high pressure jet of air could remove particles of copper or whatever material is on the cpu (the lid) due to simple friction or whatever.. eventually the high pressure air jet will go through the metal and you'd have an exposed silicon die.

[the gremlin]

guys guys i wouldnt be spraying it. I'm imagining a can attached to the CPU, sending air out of the case. using the can as an extreme heatsink. getting filled and decompressed like how an AC system works

[Spuriae]

Phase change coolers operate on this concept. They're loud, expensive, and power hungry. They're also sub-ambient, which brings along a host of other problems.

[the gremlin]

3 minutes ago, Nimrodor said:

Phase change coolers operate on this concept. They're loud, expensive, and power hungry. They can also go subzero, which brings along a host of other problems.

THANK YOU

its a thing

i was unaware