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Epic cooling Experiment with graphene. - Page 3

post #21 of 46
Quote:
Originally Posted by HitMe View Post

thats true , the gain is not a full thermal conductivity of graphene , but 25% is great
Graphene Enhances Efficiency of Heat Spreaders by 25 Percent

in my case the coating is like thermal paste .
but a gain of 4-3 degree celsius over ic7 diamond thats great .

i will mix the Graphene with acrylic based paint and repaint the radiators to see the difference

Or use graphene in dust form, and mix with tiny little drop of wood glue?
Dont know how dense acrylic paint is but Im making my self conductive paint by simply mixing charcoal dust witsh some water and tiny drop of wood glue. When dried is dense and hard and can be easily sanded to super smooth.
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post #22 of 46
Quote:
Originally Posted by HitMe View Post

thats true , the gain is not a full thermal conductivity of graphene , but 25% is great
Graphene Enhances Efficiency of Heat Spreaders by 25 Percent

in my case the coating is like thermal paste .
but a gain of 4-3 degree celsius over ic7 diamond thats great .

i will mix the Graphene with acrylic based paint and repaint the radiators to see the difference

Yeah that link refers to conductivity again.....the composite copper/graphene has a conductivity 25% greater than copper....and as they are talking about 200 micron layers this is again where the proposal falls down...such a layer would only conduct the same amount of heat as a 250 micron layer of copper for a given temp delta....and you would not use a 250micron layer of copper to make a heat sink base....they are substantial lumps of metal for a reason...that is to allow them to move a sufficient quantity of heat with as low a temp delta as possible....the total amount of heat that can be moved does not just depend on the conductivity value of the material but also on the thickness of the material its travelling through.

As regards painting your radiator...I hate to be a nay sayer but you will find the vast majority of the heat is dissipated to the air via conduction....loss via radiant/emissivity that a graphene coating would enhance would only be minimal in comparison...but yeah give it a go....experimentation is always good thumb.gif
post #23 of 46
Thread Starter 
Quote:
Originally Posted by Hrv123 View Post

Or use graphene in dust form, and mix with tiny little drop of wood glue?
Dont know how dense acrylic paint is but Im making my self conductive paint by simply mixing charcoal dust witsh some water and tiny drop of wood glue. When dried is dense and hard and can be easily sanded to super smooth.
well thats a good way but i have found that ... using Graphene-Dispersion on as a Thermal paste , a dramatic way to decrease temps by 10 degree celsius .
Quote:
Originally Posted by technogiant View Post

Yeah that link refers to conductivity again.....the composite copper/graphene has a conductivity 25% greater than copper....and as they are talking about 200 micron layers this is again where the proposal falls down...such a layer would only conduct the same amount of heat as a 250 micron layer of copper for a given temp delta....and you would not use a 250micron layer of copper to make a heat sink base....they are substantial lumps of metal for a reason...that is to allow them to move a sufficient quantity of heat with as low a temp delta as possible....the total amount of heat that can be moved does not just depend on the conductivity value of the material but also on the thickness of the material its travelling through.

As regards painting your radiator...I hate to be a nay sayer but you will find the vast majority of the heat is dissipated to the air via conduction....loss via radiant/emissivity that a graphene coating would enhance would only be minimal in comparison...but yeah give it a go....experimentation is always good thumb.gif

my Friend if there's a way to make a 3D graphene heatsink My cpu will be 5-10 degree celsius above ambient temperature .

i do understand that graphene wont give the full power of thermal conductivity i'm here to squeeze some extra cooling .
the coating did not work for me some of the cores ( 2 /3) was hotter that the other cores
yet it's better than ic diamond 7

but here's last test :
ambient temperature 24 / 25 / 23

i'm currently stressing the cpu i will under prime95 Large FFTs for maximum heat
something used to heat my cpu to 70 °c
Edited by HitMe - 3/23/14 at 2:15pm
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post #24 of 46
very nice score smile.gif Also have you considered deliding and using graphene ?

what about crafting solid graphene his also?
Edited by Torvi - 3/23/14 at 2:52pm
post #25 of 46
Dude cool experiment you got going, don't forget to WASH your hands before you eat!! applaud.gif
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post #26 of 46
Thread Starter 
Quote:
Originally Posted by HeavyUser View Post

Dude cool experiment you got going, don't forget to WASH your hands before you eat!! applaud.gif

tongue.gif i did maybe eat some graphene stuck under my nails tongue.gif
Quote:
Originally Posted by Torvi View Post

very nice score smile.gif Also have you considered deliding and using graphene ?

i'm gonna use that with my 2600k but blender rendering is in love with that cpu tongue.gif
deliding my 3770K :'( i cant tongue.gif
back to prime95
ambient temperature is 23-24
i'm using 200mm phobya radiator + D5 pump speed 2
raystorm xspc bitfenix 200mm spectre pro

Max temp 55
average around 48-50



Edited by HitMe - 3/23/14 at 2:52pm
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post #27 of 46
i know it might be abit NASA solution but if you could make it it would be awesome

Make a mould for HIS , fill it with graphene paste then put it into high pressure chamber. Very high pressure should make it solid and after taking out of mold you would have first graphene HIS on teh forum


http://www.ehow.co.uk/how_7944370_homemade-altitude-chamber.html
http://www.ilcmuseum.org/online/Parvin/09.pdf
http://www.instructables.com/id/Gift-Home-made-high-power-air-BB-gun-for-Christmas/?ALLSTEPS
post #28 of 46
Thread Starter 
Quote:
Originally Posted by Torvi View Post

i know it might be abit NASA solution but if you could make it it would be awesome

Make a mould for HIS , fill it with graphene paste then put it into high pressure chamber. Very high pressure should make it solid and after taking out of mold you would have first graphene HIS on teh forum


http://www.ehow.co.uk/how_7944370_homemade-altitude-chamber.html
http://www.ilcmuseum.org/online/Parvin/09.pdf
http://www.instructables.com/id/Gift-Home-made-high-power-air-BB-gun-for-Christmas/?ALLSTEPS
this is huge good idea !!

i will see what i can do
i hope that it wont break after it's solid
because graphene is not 3d it needs to be mixed with polymer or acrylic
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post #29 of 46
IC diamond is not that good..
umm..GC-extreme smile.gif
I'm just posting so I can come back biggrin.gif
woohoo! Graphene!
 
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post #30 of 46
different substances act different under very high pressures, just put it in without anything and try to make it solid out of pure graphene
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