View Single Post
Unread 05-28-2003, 05:17 PM   #10
satanicoo
Cooling Savant
 
satanicoo's Avatar
 
Join Date: Nov 2002
Location: portugal
Posts: 635
Default

Quote:
Originally posted by Cathar
Oh lordy!

Where does one begin without feeling like they're writing the first few chapters to a book on water-block design?



Quote:
Originally posted by BigBen2K
#1: You want to keep a channel-to-fin ratio between 1:1.5 and 1: 0.75. The actual width will be limited by the tooling you use. Btw, if you think you can make 0.1mm fins, think again, or let us know how!
hehe, in fact, im doing an air cooler (there's a tread to it, wich you did already posted ) were i say im making fins that start with 0.1 mm and end with 0.26, but with 30 mm high!!!

But:

Quote:
Originally posted by Cathar
0.1mm channels/fins would result in a waterblock who's pressure drop is WAY too high. The block would perform quite poorly unless you had a gear pump applying ~50PSI to it to get sufficient flow
this is another thing that i'm not understanding, isn't the area for the water to pass the same? ( 10x lower area per channel, but 10x more channels)

Quote:
Originally posted by Bigben2k
#3: Trial and error.
At last an easy task , now i only need to make sum holes in a piece of wood .

Quote:
Originally posted by Bigben2k
#8: At the detriment of its thermal properties, maybe.
But maybe, if we well, detriment is thermal properties by 10% but make it 'contact with copper' 100% more it would be better right?

Quote:
Originally posted by Bigben2k
#10: First seen in a document about how to cool a Korean nuclear reactor, in case of emergency, it's the action of shooting water straight up against the surface to be cooled. The idea is that the collision throws the coolant into turbulence. It's cheaper to achieve turbulence this way, because you wouldn't believe what kind of flow rates (and pump) are required to put flowing water into turbulence!

I'll let you search for the documents I've mentionned. If you post a link to them, I'll answer more questions!
Googling ony found topics about
"North korea back to Nuclear research" and stuff like that. Not a good googler unfortunately :shrug: .


I loved Cathar's explanations on turbulence and impingement. Now it sounds natural .

I know there are lots of info all over the web, but its normally quite dificult to understand, i really never understood why turbulence and impingement were such a great thing, but now i understand why.

Hi Jaydee

I'm glad you have the tools to do it.
I am also making some tests. you will heard about them later. Wait for me .


Thanks all, will post more questions as i remember.
satanicoo is offline   Reply With Quote