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Copper nanoparticle increase thermal conductivity; can this be used in WC loops?

post #1 of 4
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I originally stumbled upon this article http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3211279/
which outlines the benefit of alumina nanoparticles in a water/glycol mix to improve heat conductivity (19% inc).

I then went down the search results and found this http://jap.aip.org/resource/1/japiau/v103/i7/p074301_s1?isAuthorized=no
and many other similar articles.


I wonder, has anyone tried this in their loops?

Does any manfacturer offer this in their water cooling loop liquid?

Do I have to be the first to try it?
    
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post #2 of 4

Zalman  called the "Reserator 3 max". Been out a short time  and trying to get my hands on to test it. Linus gives it a look too if interested.

post #3 of 4
We use water because its thermal capacity is huge, so it takes a lot of time for the water to warm up and cool down, positively affecting the performance of a loop consisting of multiple blocks.

Adding copper nanoparticles to water actually reduces the specific heat capacity of water, potentially decreasing loop performance.

Of course, I would like to see how does the improved conductivity impact performance. Could be for the better in that aspect, provided the cooling system (radiators) is equally as good.
   
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post #4 of 4
Quote:
Originally Posted by SkeeterSkeeter View Post

I originally stumbled upon this article http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3211279/
which outlines the benefit of alumina nanoparticles in a water/glycol mix to improve heat conductivity (19% inc).

I then went down the search results and found this http://jap.aip.org/resource/1/japiau/v103/i7/p074301_s1?isAuthorized=no
and many other similar articles.


I wonder, has anyone tried this in their loops?

Does any manfacturer offer this in their water cooling loop liquid?

Do I have to be the first to try it?

You're referring to what's called Nanofluids. Yes, in theory they should work, no there are not any ones on the market that actually outperform water. There's Ice Dragon Coolant, but there's a LOT of back and fourth on whether that works or not, and I have yet to see any finite results from a comparison on it's performance with pure Distilled water.

The problem is they increase it's thermal conductivity, while reducing it's thermal capacity. They also present issues with viscosity, and with particle scaling. This means you need to start putting in other additives to combat these issues. By the time you start mixing all this stuff in performance starts to suffer.

Yes it can be done IN THEORY, but no it's not easy. You will definitely NOT be the first to try this. The U.S. Airforce tried to find an economical way to produce a nanofluid coolant for use in low altitude close ground air support aircraft's cooling systems. To my knowledge it never reached full scale production though. As I said, Ice Dragon has their nanofluid out, and Mayhems coolants are working on a performance Nanofluid that he claims has a 10% performance increase over pure distilled water. That coolant is /NOT/ available yet, nor is their an ETA on when it will hit the market.

Don't expect to throw some copper nano-particles or diamond dust into water and have it perform better.
Quote:
Originally Posted by Artikbot View Post

We use water because its thermal capacity is huge, so it takes a lot of time for the water to warm up and cool down, positively affecting the performance of a loop consisting of multiple blocks.

Adding copper nanoparticles to water actually reduces the specific heat capacity of water, potentially decreasing loop performance.

Of course, I would like to see how does the improved conductivity impact performance. Could be for the better in that aspect, provided the cooling system (radiators) is equally as good.

That ideology is that they can transfer heat between the two areas much more effectively than water, thus resulting in lower average coolant temperatures throughout the loop. There's more to nanofluids than thermal capacity. A couple of factors off the top of my head from when I looked into it were:

Coolant turbulence, the shape of particles have much more to do with this than the thermal properties of the particle itself

Thermal Conductivity, how fast the nano-particles can transfer heat.
Edited by ZytheEKS - 9/23/13 at 1:19am
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