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Two pumps and one loop or two loops ? - Page 2

post #11 of 24
6/5/12 at 4:52am
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Quote:
Originally Posted by Egameman View Post

oooh..that don't look good to me :S
I will go or the mcp35x with the bitpower tube res:)
thnx for the help smile.gif

No problem. What CPU waterblock will you be going for then? smile.gif
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post #12 of 24
6/5/12 at 5:38am
Stick with one pump, the difference (in my opinion) will be negligible.

One loop, one pump.
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post #13 of 24
6/5/12 at 5:59am
I've not done watercooling myself yet, so consider this an untested newbie thought:

The build log in my sig shows the flow setup I am thinking of using to optimize radiator flow, since it is so much faster than block flow. Plus, the design gives you partial redundancy and partial serial pump pressure.

Here is a simplified version of the concept:
Code:
.---.
|   | 
|Res| .----------------------------------------------.
|   | |                                              |
'---'-+                                              |
 ^    |     .---.   .---.                            |
 |    v     |420|   |240|                            |
 |  .---.   |   |   |   |      .---.   .---.   .---. |
 |  |D5 |   |   |   |   |      |35X|   |CPU|   |GPU| |
 |  '---'-->'---'-->'---'--+-->'---'-->'---'-->'---'-'
 |                         |
 '--oXo--------------------'

The oXo is an in-line valve that allows you to control how much D5 flow is looped back through the radiator vs how much is used in serial with the 35X. More open would yield a lower DeltaT, more closed would yield higher water block flow.

Since radiators are much less restrictive than water blocks, and the D5 has higher flow than the 35X at low restriction, you could have the water going through both of your radiators two to three times for every one pass through the water blocks. Also, do to the design, you know for fact that all water must pass through both radiators at least once (like a normal serial loop).

[Edit]
Summary:
  • Optimizes turbulance in both radiators and water blocks
  • Uses same radiator multiple times per cycle for improved (lower) DeltaT
  • Grants partial pump redundancy and partial serial pump performance (even with valve fully open)
  • Optimizes flow in both radiators and water blocks
  • Utilizes specific pump characteristics: MCP35X high head, low flow; D5 low head, high flow
  • *Requires more patience during air bleeding (design could be altered to help with this a little utilizing a res with 3 connections)

Edited by Electrocutor - 6/5/12 at 6:14am
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post #14 of 24
6/6/12 at 8:03am
Thread Starter 
Quote:
Originally Posted by UltraVolta425 View Post

No problem. What CPU waterblock will you be going for then? smile.gif

probably the new ones from EK..the EK supremacy ..both for the cpu ang gpu..

I know alot of ppl think they look awful, but i really like 'em

biggrin.gif:D
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post #15 of 24
6/6/12 at 8:03am
Thread Starter 
Quote:
Originally Posted by Necrodox View Post

Stick with one pump, the difference (in my opinion) will be negligible.
One loop, one pump.
will do>wink.gif
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post #16 of 24
6/6/12 at 8:04am
Everytime I see this thread title I think of "two girls one cup". That is all.
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post #17 of 24
6/6/12 at 8:05am
Thread Starter 
Quote:
Originally Posted by Electrocutor View Post

I've not done watercooling myself yet, so consider this an untested newbie thought:
The build log in my sig shows the flow setup I am thinking of using to optimize radiator flow, since it is so much faster than block flow. Plus, the design gives you partial redundancy and partial serial pump pressure.
Here is a simplified version of the concept:
Code:
.---.
|   | 
|Res| .----------------------------------------------.
|   | |                                              |
'---'-+                                              |
 ^    |     .---.   .---.                            |
 |    v     |420|   |240|                            |
 |  .---.   |   |   |   |      .---.   .---.   .---. |
 |  |D5 |   |   |   |   |      |35X|   |CPU|   |GPU| |
 |  '---'-->'---'-->'---'--+-->'---'-->'---'-->'---'-'
 |                         |
 '--oXo--------------------'
The oXo is an in-line valve that allows you to control how much D5 flow is looped back through the radiator vs how much is used in serial with the 35X. More open would yield a lower DeltaT, more closed would yield higher water block flow.
Since radiators are much less restrictive than water blocks, and the D5 has higher flow than the 35X at low restriction, you could have the water going through both of your radiators two to three times for every one pass through the water blocks. Also, do to the design, you know for fact that all water must pass through both radiators at least once (like a normal serial loop).
[Edit]
Summary:
  • Optimizes turbulance in both radiators and water blocks
  • Uses same radiator multiple times per cycle for improved (lower) DeltaT
  • Grants partial pump redundancy and partial serial pump performance (even with valve fully open)
  • Optimizes flow in both radiators and water blocks
  • Utilizes specific pump characteristics: MCP35X high head, low flow; D5 low head, high flow
  • *Requires more patience during air bleeding (design could be altered to help with this a little utilizing a res with 3 connections)


Very nice and detailed , thnx man wink.gif I'll keep this for other builds etc.

I am on the second hand tempted to go for d5 and XSPC bay res / d5 combo... smile.gif
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post #18 of 24
6/6/12 at 9:50am
Thread Starter 
Quote:
Originally Posted by Hillskill View Post

Everytime I see this thread title I think of "two girls one cup". That is all.
hahahahaha !!!
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post #19 of 24
6/7/12 at 8:18am
Check this out


Dual Loop versus Single, the facts

I had the same question and I found it giving a good answer.
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post #20 of 24
6/7/12 at 8:22am
I have the koolance bay res pump combo and love it.
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daskeyboard Ultimate S Silent Seasonic X-760 Lian-Li PC-8FIR Razer Deathadder 3.5 
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Titanium HD + Objective2 Samson Monitors + 10" sub 
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120GB Intel 520 SSD | 1TB WD Caviar Black ASUS BluRay Windows 7 x64 Sony Bravia 
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Filco Majestouch Camo 600w Silverstone something or other Lian-Li PC-V352 Logitech M500 
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Overclock.net › Forums › Cooling › Water Cooling › Two pumps and one loop or two loops ?