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Sealed 750D water chilled/TEC case.

post #1 of 42
Thread Starter 
New to this site. Hello to everyone. So I got my case and what I am thinking is 1/4 water chiller. They are rated at 3000 btu which is just shy of 880 watts of heat. I will try to keep it below that. I am thinking about putting a TEC or a few as well. These would not be used mostly. Just to really cool things down or if I have to bring my computer somewhere I don't need to bring a chiller. Here is a diagram of what I am thinking. The TEC's would be each on their own power button.

The case will be sealed and cooled with a rad and fans inside. Thus will be used everyday use to rendering and will be on for extended duration at 100% load if this is at all a factor.
post #2 of 42
Seems like a rather ambitious design. How do you plan on closing the loop if you remove the chiller?
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post #3 of 42
Thread Starter 
Connect the 2 together out the back of the case and have enough on the system to run it. When it goes with me somewhere its not doing renders. So 200-400 or 500 watts max for TEC but just a guess. The pump will also be in the system.
post #4 of 42
So when the chiller isn't active, you're essentially relying on the TEC to somewhat turn your radiator into a cooling unit instead of more of a heat dissipater?

My concern is that if the TEC isn't strong enough to bring the water flowing thru the rad below case ambient temps, heat will just continue to build up from incidental component heat. The other problems you'll run into possibly is condensation. Not to mention that the TEC will likely freeze at the point where it connects to the loop... Then there's the PSU, how are you going to seal/cool it? This all seems interesting, but very complicated.

Why seal the case anyway?
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post #5 of 42
I wouldn't bother with the tec as I've tried this and it did nothing to the temps and just waisted electric imho
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post #6 of 42
Quote:
Originally Posted by lzf995 View Post

I wouldn't bother with the tec as I've tried this and it did nothing to the temps and just waisted electric imho

I think he has a point. The water would pass through the block at the TEC so fast, it wouldn't have a chance to be cooled. The point where the cooling is going to take place is at the rad. Now if you could somehow attach the TEC to the rad and cool the entire rad with it, just MAYBE it would be enough to chill the water...
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Jarvis
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post #7 of 42
It wouldn't even work cooling the rad you need the peltier to have a block that has just enough flow but still restricts it enough to cool the liquid so just out the peltier and just use the chiller a peltier isn't the same as phase chiller it takes a lot longer to cool liquid unless built right and cooler properly the size of the tec needed to the size of the cooler you need at least a 120-240 rad to cool the peltier
Edited by lzf995 - 10/8/15 at 9:55am
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post #8 of 42
Thread Starter 
I hear that the hot side of a TEC must get to 125c so was going to use just a good heatsink on the top of the case and dial it in with the fan/fans on it. Internals will be conformal coated, even the PSU if I can. Inside the rad I was thinking about running it last in the loop or even a slower flow via a much smaller pressure bypass tube on the inlet with a valve to turn case temps up or down as desired. I was thinking 10-12c case temps and 4c to the cpu to cut down on condensation. Going to insulate the case and the psu. Again the TEC would be for light use away from home with no chiller and to turn down cpu temps to below 0, hoping it will drop 4c. Would there be any problems running SSD in such an environment? The fans on the heatsink attached to the top of the peltiers will be hooked into a fan controller/temp monitoring. Thanks for the responses smile.gif
post #9 of 42
Peltier a don't work like that I'm afrade a peltier can't go above 125*c really you want to cool a peltier to as cold as possible with cooling you was a hot side around 15-30*c plus you would need more than 1 peltier to cool a cpu to 0*c if I was you I'd go do a lot of research and look up building peltier chillers ect I just don't want you killing your pc with peltiers wink.gif
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post #10 of 42
Thread Starter 
125c max is correct. I am looking at a build where a peltier drawing 200 watts is hooked up to a water cooling loop, lowers the water temps from a degree or 2 above ambient which was 24c, to 14c during gaming. Also he has a second one and if engaged drops the temps of the water down to 10c. So say 14-15c drop. Hot side cooled with a heat sink/fan on each. I am looking for much less than that.
Again this will all be hooked up to a 1/4 hp water chiller so the incoming water/mix will already be at a chilly 4-5c. Just looking to drop the temps for show lol. So a peltier or 2 will not drop my incoming fluids 5-6c? Again for show and when I absolutely need to bring it somewhere enough to run the computer on standard clocks for a few hours possibly. The peltiers will see nearly no use.,, Ok ok I just want to show it off to my buds biggrin.gif
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