could be great for a lot of people who put a lot of stress on their cooling loops for crunching farms. Lets get it to Martin or someone else capable and willing to test the stuff. could be the next jump up we've got on those air cooling freaks :P
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could be great for a lot of people who put a lot of stress on their cooling loops for crunching farms. Lets get it to Martin or someone else capable and willing to test the stuff. could be the next jump up we've got on those air cooling freaks :P
Interesting testing littleowl, and thanks for the testing with these new whity stuffs. Hope you can still keep it in the loop to see a longterm stability and such.
Good thought, and nice img. However it seems we have to add water for a mix before using it.Quote:
Originally Posted by KaptCrunch
it is not even close as heavy as mercury. I have had it in my look for over a month and I have not seen any trouble yet.
I am trying to get Mcoffey to do some testing because martin is to busy.
I know I am not doing the work that needs to be done but you try and do some of this with out a thumb. :( it really is harder then you think. :shakes:
I diluted the mix because I was worried it was heavy like mercury but it is not and I would like to see it on my B3 quad
this is a note I got from the guy that sent this stuff to me.
Quote:
There will be no issues with the nanofluid leaking. If it leaks with nanofluid that means it was leaking with water. It won't mess up any seals. It is no different from pumping water because the concentration is low enough to not affect the density...pumping liquid metal..ie..mercury..would destroy any pump. Nanofluids increase the convective heat transfer coefficient, which increases the amount of heat removed from the chip without affecting the temperatures - meaning you can put more heat into the chip because the nanofluid can get rid of it.
if you all don't read the rest of the forum there has been a good discussion here:
http://www.xtremesystems.org/forums/...d.php?t=202442
Maximum coolant.
we should be getting test results any day now. We really have no idea what it is going to do in a WC system. Thru our lab tests we should a decent increase in the heat transfer ability of the nanofluid, but our flow was quite a bit higher. Therefore, our turbulent mixing was a good deal higher. Still, it should be interesting to see what it can do. As for the feel of it; it really feels like water..maybe with a tiny soapy feel to it.
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3 regular posters on here have samples now..hopefully, we should get some info by the weekend. Tomshardware has a sample as well. And, so does a guy at Anandtech...did I say all of this already? We are still waiting to hear back from MaxPC. soon...
3 regular posters on here have samples now..hopefully, we should get some info by the weekend. Tomshardware has a sample as well. And, so does a guy at Anandtech...did I say all of this already? We are still waiting to hear back from MaxPC. soon...
first tests results are in by Skinnee..Littleowl did a little bit of testing..we are waiting for Bob
http://www.xtremesystems.org/forums/...=202442&page=5
thanks for the headsup relttem :up:
and interesting..
Awesome work Skinnee - can't believe I missed those results - keep it up :up:
I have a full write up coming, with some shots of the fluid and a UV reactive verdict. :D
I will post all of the info when I have some pics to go along with it. :up:
Confirms (for this forum) what has been found in other tests; nanofluids
transfer heat better than distilled water. The less turbulent the flow,
the greater the difference between nanofluids and water. That is why
the temp difference was more pronounced with low flow. A low restriction,
low to medium flow loop would see a nice improvement with a nanofluid.
A high restriction, high flow loop would not see too much improvement.
Why? Thermal conductivity of the cooling fluid matters more in heat transfer
when the flow is less turbulent and nanofluids conduct heat better. When
the flow is more turbulent, heat transfer due to convection is more important.
I'll give this link once again: http://www.electronics-cooling.com/html/2007_aug_a3.php
thanks for posting the link to that paper. If you go to MIT's mechanical engineering page they have some nice links in their nanofluid research center. They also have a nanofluid research center in the ChemE department, but the ME department is more relevant to heat transfer characteristics.
The nice thing about the link for the paper is that enough information is given to let you determine what kind of pumping implications the addition of copper nanoparticles will have. Again, you have to be careful in terms of the amount added, because it is a trade-off between the pumping power versus the enhancement. For example, you might max out the enhancement, but then your pump will only last a few months.