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Author Topic: new watercooling concept?  (Read 2849 times)

BalefireX

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new watercooling concept?
« Reply #10 on: May 02, 2004, 01:26:39 AM »

Using a Pelt chiller to lower water temperatures will work, however, not in the way you suggested.  The "the water isnt in there long enough" excuse is complete nonsense - once the system is running, water is always in there, and water spends the same time everywhere, no matter whether it is flowing at .5gpm or 10gpm.  Imagine, its either in the chiller for 1 second 6 times per minute, or for 6 seconds 1 time per minute... it equals out.  The problems are as follows:

1) Cooling the peltiers - You will probably need a separate high performance watercooling loop to cool the peltiers enough to make a difference.  A pair of duron heatsinks isn't going to cut it.
2) Powering the peltiers - Peltiers use a lot of power, meaning you are going to need a dedicated PSU.  Running them off your PC's PSU = Dead PSU.  It is also going to be expensive in terms of electricity.
3) Insulation - a well made Peltier chilled system will have water well below ambient (well below zero, actually, so you'll have to use a water/antifreeze mix) and will need proper insulation to avoid condensation.

You can not use a radiator on the CPU cooling loop of a peltier based system - this is because a Radiator attempts to make the water temperature = air temperature, and with a peltier chilled system, the water temperature is below ambient.  A radiator on that loop will actually increase the water's temperature.

Here is an example of a working chilled water system from a place that actually knows what it is talking about when it comes to watercooling.  I'd recommend browsing their peltier forums if you are serious about building one of these.  http://www.procooling.com/reviews/html/swiftech_mcw-chill_452_review_.php
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computerfreke911

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new watercooling concept?
« Reply #11 on: May 02, 2004, 02:47:25 AM »

Bale, that is a great link. Thanks.
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viridius

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new watercooling concept?
« Reply #12 on: May 02, 2004, 11:52:16 AM »

One word: ridiculous.
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abyss909

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new watercooling concept?
« Reply #13 on: May 02, 2004, 02:04:55 PM »

thanks for all the ideas and comments guys...cool link balefirex..thanks dude...

and viridius...dude, do you ever have anything nice to say...you seem so bitter lately....
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viridius

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new watercooling concept?
« Reply #14 on: May 03, 2004, 07:18:59 PM »

Do not confuse directness with malice.
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kaffine

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new watercooling concept?
« Reply #15 on: May 03, 2004, 10:25:28 PM »

Hmmm, I just had an idea(uh oh!).  Referring to the above posts about how pelt cooling is expensive(electricity), what about a system where, as originally proposed, there is a regular watercooling system, with pelts on the reservoir.  The pelts remain off when the system is idleing, or doing menial tasks, but can be switched on, and the pelts cooled with a seperate water loop also switched on, when gaming or somthing.  Or it might just be cheaper to do phase change =p
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computerfreke911

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new watercooling concept?
« Reply #16 on: May 03, 2004, 10:26:50 PM »

Why don't you just put pelts on the waterblocks. It is a lot easier than trying to chill water.
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viridius

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« Reply #17 on: May 03, 2004, 10:39:06 PM »

I second that motion.  You will get much better performance putting the peltier in direct contact with your core and you only have to insulate the socket.
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ATiLoyalist

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new watercooling concept?
« Reply #18 on: May 04, 2004, 06:22:01 PM »

why dont you watercool the peltiers in the resivor...
</sarcasm>
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BalefireX

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new watercooling concept?
« Reply #19 on: May 04, 2004, 06:26:09 PM »

If you look at the link I posted earlier in this thread, you will see that thats the idea - you use one watercooling loop with radiators to cool the peltiers, and a second loop using the peltiers to cool the waterblocks.
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