pressure idea

[athlonnerd]

from what i can gather, cooling components generally work better when the cooland is at a higher pressure, i may be wrong, someone please confirm on this.

if this is so, why cant we increase ththe overall pressure of the system, one could do this by adding a tube like device that was threaded on the incide, and a threaded insert, that when turned, decreses the volume of the system, this increasign pressure. pics to follow.

[athlonnerd]

system

[Script Kiddie]

Would more pressure be harder to pump?
It decreases the size of the dissolved air bubbles and adds more water to metal.

[MajinSSJVegetto]

Water is uncompressable. Well, not kinda, but for any and all reasonable purposes, it is uncrompressable.

If you wanted to use compressed air, well, it would help over normal air, but nothing compared to water..

[athlonnerd]

the device, sorry for the crappy pics, but i fried my cpu, so i have to use paint, paint still rock tough:D

[Script Kiddie]

It would increase the psi inside the tubing, making the disolved air inside the water smaller.

[athlonnerd]

increasing the pressure would decrease the gph, but that wouldnt matter, cause it owuld pump the same lbs/hour, and its th mass, not the volume that matters.

watter is compressable, more so that oil and such, but less than air, why do we havepressure washers, how is the pressure on the ocean floor so high? how do we get pressure drops in radiators?

[athlonnerd]

why would the bubble size matter?

[|PuNiSh3R|]

Liquid is impossible the compress.. Meaning.. like with a gas.. You can compress it.. to 500.. 5000PSI and so on.. But it's not the same with liquid.. Liquid has a weight to it.. which puts a PSI on something.. depending on how much liquid there is.. But you cannot take 50gallons of water and compress it to take only 40lb's of space.. You get the idea..

[Brant]

the purpose of compressing water or air would be to increase the density and increase the thermal capacity. But it is impossible to compress liquids without having your own blackhole. You can however increase the preasure of the liquid, but preasure is only a force that is exerted on the container

Air can be compressed, that is why heatsinks work better at sea level than in the mountains.

[MajinSSJVegetto]

As was said, water IS pressurable, but NOT compressorable. (its 1 am, dont laugh at my funny words)

[athlonnerd]

ooo, ok ic owell. actually, it wouldnt really matter, this is probobly wrong too, but if the water is at higher pressure, wouldnt teh water make better contact with the wb walls, like a hs and die

[nihili]

Simply adding pressure to the system in the way described will blow up the system long before you see any noticeable effect on cooling.

Where pressure does make a difference is in the pump. A pum that can deliver a higher pressure will be better able to overcome the resistance in the cooling system. Thus it will pump closer to it's rated flow. This would be especially importnat if you were using multimple waterblock or extra long tubing.

nihili

[athlonnerd]

ok well scraping that idea:D

[Bobnifty]

what if the pressure was lowered? can you lower the compression? not suggesting it would help cool (would it?)

[athlonnerd]

no,would decrease flow rate, a pump pumps mass per time unit, no volume, there for, to pump the same amount of mass, the impeller would have to spin fasted, to keep up wiht the required increase in volume per time unit, if the impeller speed is maxed out, it wouldnt be able to spin faster. if not, then it would increase noise by the pump. i dont thinkn it would help cooling, also, if you cant compress water, i dont think you can decompress it.

[Mage]

You can compress water. This is why the water at the bottom of the ocean is more dense than the water near the top. It's not very easy to make a noticeable difference, but it can be done.

For our application, though, this would be completely impractical.

BTW, gasses, including the ones that make up air, have weight. Relatively little, but they're not weightless.