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liquid metal! :D - Page 2

post #11 of 63
Whoa, liquid gold. Now that would be a pretty damn expensive resevoir to fill. Would look pretty sweet, though, if it were at all possible.
post #12 of 63
ok so back on topic, the idea of using liquid metal to dissapate the heat is a great one, its just the pump would have to be massive and use tons of power....and finding a liquid metal that conducts heat is kinda hard too, most of them dont do it nearly as well as AL, let alone some silver....

but im expecting in the future there to be some crazy superconductors out there for relatively cheap as they get created by the mad scientists....
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post #13 of 63
look at my above post with the link... they tried this its too expensive and they used a series of magnets to make the metal flow making it completly silent
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post #14 of 63
That`s why most HVAC units still have copper coils and tube heat exchangers.
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post #15 of 63
Thread Starter 
first of all... i checked it out and mercury is a pretty good conductor not as gold (btw gold is the first one on the list! then silver and then copper...) but still a good one! and perhaps the solution is not using a pump! we need to find another way to create 1 side pressure!
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post #16 of 63
Mercury has a vicosity (restistance to flow) of 1.55 cP, water is 1.00 cP. So it would not be that difficult to pump. But, mercury does present a significant cooling advantage in terms of thermal conductivity. Mercury has a thermal conductivity of 8.51 W/mK, while water is .606. But handling the material would be difficult, and if you had a leak, the entire neighborhood would have to be evacuated!

There is no other liquid that has a better thermal conductivity.

As for those of you argueing about the solid here are the thermal conductivities of some solids:
Diamond: 4000 J/msC
Silver: 417
Copper: 394
Gold: 291
Aluminum: 217
Steel: 67

Water is you best bet, hate to tell you!
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post #17 of 63
Quote:
Originally Posted by Omri
first of all... i checked it out and mercury is a pretty good conductor not as gold (btw gold is the first one on the list! then silver and then copper...) but still a good one! and perhaps the solution is not using a pump! we need to find another way to create 1 side pressure!
once again...gold does not conduct heat particularly well, its a little better than aluminum, but not as good as copper.... and magnets may help move the metal, but i dont think its worht the effort for it wont be a good enough benefit for the time/money it will cost....
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post #18 of 63
Thread Starter 
the commercial version of mercury is poisonous but in a pure metal form (also better heat transfer!) it cant do any harm! and magnets has no effect on mercury...
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post #19 of 63
i dont think mercury is the right material, have you ever held mercury?!!! my dad had a baby food jar full of mercury and it wieghed about 5lbs! so a cooling setup would add like 15-20 lbs to your already heavy PC...
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post #20 of 63
mercury is toxic in its natural form. and u r right about the magnet part. Hg has a very low polarity and therefore is not influence by electromagnetic fluxes. and yes Hg is heavy because its density is off the charts, will get the figure in a while.
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