nanofluid!

[littleowl]

ok so a guy got on another forum I get on a while back and asked people if they thought of trying nanofluid and a member jumped all over him so to speak.
I PMed the guy and said I would like to know more about this stuff I am willing to see how it works for my systems. I crunch so my systems are always 100% load.

I have a cheap mobo ECS G31T-M v-1.0
With a E6600 running at the time stock speed.
The waterblock on this chip is my OLD maze4 that I made a hold down for, This system was crunching right along with core temps 32c, 32c and room temp at 23.9c again 100%load

So I got all my loop drained and put the nanofluid in and decided at the last min that the stuff looked kind of heavy so I added a little maybe 8-10 OZ. of distilled water. Boot the system back up and room temp was 25c and still stock speed with core temps the same 32c, 32c

I hurt my thumb and have not had time to mess with it at all so it has been chugging right a long in my barn. about 3 weeks go by. I decide to check on it. Well room temp was down some but didn't check it. I decided to up the FSB a little. I took it up making the chip run 2.777. One week later my I go look at it. Room temps are 28.9c my cores are 36c 36c. Still running 100%

I cant say much about if this stuff is great or not yet but I can say it helps keep my temps down when I took up the FSB. I expected it to go up 1 or 2 degrees. That is what normaly happens but it didn't.

I have a couple pics I added to this in the WCG section here.

[evil-98]

what is nanofluid? it white?

[BlueAqua]

What's nanofluid? Please fill us in.

[Eddie3dfx]

There was a watercooling part on ebay a while back with some berium liquid or gas inside of it.
Is that what you are talking about?

[littleowl]

I don't know a lot guys you maybe able to learn more about it by using google.
Investigation of Increased Thermal Conductivity of Nanofluids

Fluids containing suspended solid metallic or nonmetallic particles (nanofluids) display enhanced thermal conductivities. The aim of this study is to identify and understand the mechanisms behind this increase and to develop a suitable model to predict the thermal conductivity for a variety of nanofluid systems.

There are microscopic pieces of copper in what I am running. The guys that sent it to me were testing and mixing the stuff for military applications. one guy is interested in water cooling and decided to dump it in his system. He said he is seeing some of the same things I seen so far. didn't change anything at all untill I started OC then I seen my temps didn't move. I am sure it needs pushed more but I have some troubles doing that at the moment. (darn bum thumb)

[BlueAqua]

From MIT:

Nanofluids are engineered colloidal suspensions of nanoparticles (1-100 nm) in a base fluid. Common base fluids include water and organic liquids. Nanoparticles are typically made of chemically stable metals, metal oxides or carbon in various forms. The size of the nanoparticles imparts some unique characteristics to these fluids, including greatly enhanced energy, momentum and mass transfer, as well as reduced tendency for sedimentation and erosion of the containing surfaces. Nanofluids are being investigated for numerous applications, including cooling, manufacturing, chemical and pharmaceutical processes, medical treatments, cosmetics, etc.

It's really hard to beat water in specific heat capacity, and that's important for water cooling. I'd sure love to see something that could beat it though.

[littleowl]

yeah that is a good explanation

I didn't learn much before I jumped into it I just wanted to make sure my block and pump wouldn't get ruined.

[SNiiPE_DoGG]

yeah that is a good explanation

I didn't learn much before I jumped into it I just wanted to make sure my block and pump wouldn't get ruined.

So where can I get this stuff, I'll test it maybe send some over to martin too

[DarthBeavis]

fluid so has it in beta now. If someone wants to test It I can probably help .

[littleowl]

I would like to get martin to test it!!!!!! I will talk to the guy and see how much he has and all that.

[Bojamijams]

So metal particles inside a liquid.. hope you don't get a leak cause oh boy.. conductivity

[littleowl]

it is no more conductive then water.
The metal is so small that there is almost no way for them to make an arc.

[rosco]

Such white color indicates that it is, @ 99% sure, alumina nanoparticles (aluminium oxyde), probably the most classical and studied nanofluid. It doesn't beat water in terms of specific heat capacity, but on thermal conductivity (up to 30-35 % filled @ 5% v/v) which leads to a higher convective coefficient. Several thermophysical aspects are involved into the fluid efficiency, not only the specific heat capacity as said in a previous post.

[CyberDruid]

Is it UV reactive?

[BreeSpree]

Basically sounds like the same idea, of some people sprinkling silver into their res. Doesn't sound like such a bad idea when it comes to thermal capacity, however I do fear for the stability of a pump. I know the particles are small, but it still isn't like pure water, which is what the pumps are designed for. I wonder if the particles would speed up corrosion process too. Doesn't sound like a bad idea, just maybe if all the world's coolant companies that have scientists available to test and sell various coolants for the purpose of computer liquid cooling would have discovered and implemented it if it was such a great idea. Then again, all they sell is basically distilled water with antifreeze.

[Bojamijams]

it is no more conductive then water.
The metal is so small that there is almost no way for them to make an arc.

A lot more conductive then distilled water though.

[cegras]

Why is specific heat capacity so important?

I thought the purpose of water cooler was to wick away the heat faster than air cooling and dump it faster as well. For that, obviously a liquid with maximum conductivity would be good. And if the liquid gets hot, even better right? That means at the radiator, there's a larger T gradient for it to dump heat faster.

Of course, this complicates how many heat sources you put into the loop ..

[BlueAqua]

http://en.wikipedia.org/wiki/Specific_heat_capacity

Specific heat really has to do with how much heat can a material hold. In water's case, it can hold over 4 J mol−1 K−1.

There are a lot of factors, more the specific heat capacity, but I think it's a fairly major one.

[littleowl]

A lot more conductive then distilled water though.

nope

[cegras]

http://en.wikipedia.org/wiki/Specific_heat_capacity

Specific heat really has to do with how much heat can a material hold. In water's case, it can hold over 4 J mol−1 K−1.

There are a lot of factors, more the specific heat capacity, but I think it's a fairly major one.

Well yeah, I understand. But, say, given a liquid metal or nanofluid as the working fluid, I would take that over water as it would certainly conduct way way better with a not as proportional drop in specific heat capacity.

[bluphysted]

In summary...

Distilled water makes a lot more sense.


Flippin' nerds.
;p

[littleowl]

@ bluphysted no one has good good testing to say distilled water makes better sense yet.

[bluphysted]

True... true.

I may be jumping the gun here.

But..

I can get 4 litres of distilled H20 for $0.99.. and.. well... I don't even know what nanofluid is, let alone where to buy it.

[littleowl]

it is not in the market for us to buy yet.

[bluphysted]

In summary...

Distilled water makes a lot more sense.


Flippin' nerds.
;p

Ok then..

like I said.