Water block Design

Vector86 · 06-25-2002, 08:26 AM

It seems to me that all water block designs are the same IE an inlet, flows around a little and an outlet. why are waterblocks designed that way instead of just putting a regular heatsink on a copper block and running water through that??

Yes i AM a nube

dcrainman · 06-25-2002, 09:39 AM

I have actually seen waterblocks that do just that:
http://www.overclockers.com/articles586/

Vector86 · 06-25-2002, 09:44 AM

i see that that heat sink design isn't as effective, what about turbulence, i saw an article where this guy did cross-hatching on the inside of a block and lowered temps 6 degrees.

dcrainman · 06-25-2002, 09:50 AM

the idea behind that is friction and surface area the more contact time the water has in the block the more heat that is released. I have an idea of making a very high pressure block with VERY small channels almost like the weave used for fuel cells to aceive greater heat transfer but I'm not sure I could cycle the water fast enough

Vector86 · 06-25-2002, 10:11 AM

would it be a good idea to etch lines in am existing WB design?? or is the thermal gain too insignificant

bigben2k · 06-25-2002, 10:25 AM

It shouldn't hurt...

Look at this:
http://www.octools.com/index.cgi?cal...ign/block.html

That (hand-made) design gives almost optimal surface area. It's very hard to make though...

Quickmcj · 06-25-2002, 10:36 AM

Remember that the senfu block is alu at the bottom !

But i think this chould have been a really good block....sad it has the alu. What about buying an cobber heatsink, and make an waterblock out of it you own ?

dcrainman · 06-25-2002, 10:47 AM

In my opinion (I have seen several VERY long arguments about this) the copper is only needed where the water is coming in contact with the heatsink... I feel that Al is better at dispersing heat in to the air buy Cu does a better job with water. Also remember don't mix metals in the water system or you'll get corrosion

Vector86 · 06-25-2002, 10:58 AM

thanks alot, its difficult to understand all of the factors that are involved in somthing that looks so simple!

bigben2k · 06-25-2002, 11:08 AM

Quote:

Originally posted by dcrainman
In my opinion (I have seen several VERY long arguments about this) the copper is only needed where the water is coming in contact with the heatsink... I feel that Al is better at dispersing heat in to the air buy Cu does a better job with water. Also remember don't mix metals in the water system or you'll get corrosion

Well, you go on believing that if you want...

Copper has a higher heat capacity, and heat dispersion than Alu, regardless of wether it's in air or water. The only substance that wil do better, without costing an outrageous amount of money, is Silver. Ask any of the old-timers here...

Vector86 · 06-25-2002, 11:11 AM

it sounds exspensive, does anyone no of a silver heatsink??

Vector86 · 06-25-2002, 11:11 AM

*know

Quickmcj · 06-25-2002, 11:34 AM

I know one. The Highlander from DK has a little spot of silver right were the CPU core is placed. Some blocks has an layer of silver on an copper profil.

bigben2k · 06-25-2002, 12:01 PM

and a few nutsos have built one from scratch... I wish I was that rich!

V12|V12 · 06-25-2002, 04:34 PM

Quote:

Originally posted by Vector86
It seems to me that all water block designs are the same IE an inlet, flows around a little and an outlet. why are waterblocks designed that way instead of just putting a regular heatsink on a copper block and running water through that??

Yes i AM a nube

I know what you mean. Seems like crude science to me, but it works... About them heatsink modded blocks. Theoretically, a heatsink (HS for short) basic design yield much more surface area than any traditional waterblock/channel/maze design, but the problem occurs with flow rate and turbulence. If you could get the water to flow even somewhat evenly in the block and through the fins, it would most likely drop temps much more significantly than mazes etc... I'm going to order and older Copper HS and with a little brazing, make a block and see what it can do. Should work as well or maybe better than current trends... Only think, most people tap the top of the blocks and the water does get forced through the fins like it should if you did a side tap and exit etc... Oh well, it'll be fun, I hope.

Quickmcj · 06-25-2002, 07:37 PM

Just take an look at Innovatek rev. 3

06-25-2002, 08:26 AM	#1
Vector86 Cooling Savant Join Date: Jun 2002 Location: KANSAS "it's not just cows"! Posts: 211	Water block Design It seems to me that all water block designs are the same IE an inlet, flows around a little and an outlet. why are waterblocks designed that way instead of just putting a regular heatsink on a copper block and running water through that?? Yes i AM a nube

06-25-2002, 10:25 AM	#6
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	It shouldn't hurt... Look at this: http://www.octools.com/index.cgi?cal...ign/block.html That (hand-made) design gives almost optimal surface area. It's very hard to make though... __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

06-25-2002, 12:01 PM	#14
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	and a few nutsos have built one from scratch... I wish I was that rich! __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

06-25-2002, 09:39 AM	#2
dcrainman Cooling Neophyte Join Date: Jun 2002 Location: ma, usa Posts: 50	I have actually seen waterblocks that do just that: http://www.overclockers.com/articles586/

06-25-2002, 09:44 AM	#3
Vector86 Cooling Savant Join Date: Jun 2002 Location: KANSAS "it's not just cows"! Posts: 211	i see that that heat sink design isn't as effective, what about turbulence, i saw an article where this guy did cross-hatching on the inside of a block and lowered temps 6 degrees.

06-25-2002, 09:50 AM	#4
dcrainman Cooling Neophyte Join Date: Jun 2002 Location: ma, usa Posts: 50	the idea behind that is friction and surface area the more contact time the water has in the block the more heat that is released. I have an idea of making a very high pressure block with VERY small channels almost like the weave used for fuel cells to aceive greater heat transfer but I'm not sure I could cycle the water fast enough

06-25-2002, 10:11 AM	#5
Vector86 Cooling Savant Join Date: Jun 2002 Location: KANSAS "it's not just cows"! Posts: 211	would it be a good idea to etch lines in am existing WB design?? or is the thermal gain too insignificant

06-25-2002, 10:36 AM	#7
Quickmcj Cooling Savant Join Date: Jun 2002 Location: Denmark Posts: 109	Remember that the senfu block is alu at the bottom ! But i think this chould have been a really good block....sad it has the alu. What about buying an cobber heatsink, and make an waterblock out of it you own ?

06-25-2002, 10:47 AM	#8
dcrainman Cooling Neophyte Join Date: Jun 2002 Location: ma, usa Posts: 50	In my opinion (I have seen several VERY long arguments about this) the copper is only needed where the water is coming in contact with the heatsink... I feel that Al is better at dispersing heat in to the air buy Cu does a better job with water. Also remember don't mix metals in the water system or you'll get corrosion

06-25-2002, 10:58 AM	#9
Vector86 Cooling Savant Join Date: Jun 2002 Location: KANSAS "it's not just cows"! Posts: 211	thanks alot, its difficult to understand all of the factors that are involved in somthing that looks so simple!

06-25-2002, 11:11 AM	#11
Vector86 Cooling Savant Join Date: Jun 2002 Location: KANSAS "it's not just cows"! Posts: 211	it sounds exspensive, does anyone no of a silver heatsink??

06-25-2002, 11:34 AM	#13
Quickmcj Cooling Savant Join Date: Jun 2002 Location: Denmark Posts: 109	I know one. The Highlander from DK has a little spot of silver right were the CPU core is placed. Some blocks has an layer of silver on an copper profil.

06-25-2002, 07:37 PM	#16
Quickmcj Cooling Savant Join Date: Jun 2002 Location: Denmark Posts: 109	Just take an look at Innovatek rev. 3

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