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Very large reservoirs...

post #1 of 17
Thread Starter 
I'm working on a new project for all my rigs since I keep them housed in the same room where I sleep half the time and I really can't stand the immense heat they put off (with regular water loops).

I've come to a point where I need some info though. Does anyone know where I can find a large acrylic or whatever case--say at least 10 gallons but not more than 30-50ish? This tank also has to be able to be plumbed at the bottom to accept multiple inputs/outputs. Or possibly accept 2 sets of inputs/outputs. One set would be about 1" tubing.

I am thinking (see pic) maybe I could have all the individual pc's draw cool water in from the bottom, and just hang the return hoses through the top just dropping water in there?

I thought about making a pvc pipe attachment with multiple on/off connections for each PC, but I am afraid that they will just dump the hot water right back in the same spot that they draw fresh cold water in from and will just keep cycling this and saturate the area with heat.

Preliminary thoughts are: make a pvc pipe attachment to a threaded output on bottom of tank (probably a 1-2" pipe) and attach all the individual PC rig input lines to that. From there each PC's output will dump into a much smaller res which then dumps into the top of the tank. Theoretically, this will allow me to draw the cooler water in and dump the hot water away from the pc's input.

There seems to be a lot of ways to go about this and so far I haven't put anything together quite yet and a lot of the parts are still showing up. Looking for any input on the setup or ways to consider doing it.
post #2 of 17
What about using a fish tank or building your own?
    
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post #3 of 17
You could go with making your own by buying acrylic sheets and building the res with some caulk and then making the in/out/fill ports. Here is a guide to working with acrylic if it helps any. I used it for a project not to long ago for school.

http://fins.actwin.com/diy/acrylic.html
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post #4 of 17
You do know that you still need radiators to cool the pcs regardless of how large your reservoir is.....

anyway, if you want a huge res just get something similar to this and nozzles
 
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post #5 of 17
Thread Starter 
Quote:
Originally Posted by fat_italian_stallion View Post
You do know that you still need radiators to cool the pcs regardless of how large your reservoir is.....

anyway, if you want a huge res just get something similar to this and nozzles
And why would I still need radiators?

Thanks for the other info! +1
post #6 of 17
because something needs to cool the water, even if it's a lot of water, over time it'll get warmer
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post #7 of 17
Quote:
Originally Posted by usmcz View Post
And why would I still need radiators?

Thanks for the other info! +1
Without radiators there's nothing to dissipate the heat so the water in the reservoir will just get hotter and hotter and hotter. The only way you wouldn't need a radiator while watercooling is if you use geothermal cooling, which would be running your tubing down through the dirt about 10ft under the ground where it's around 50c all of the time. you would just then need to coil enough tubing in circles for it to dissipate enough heat
 
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post #8 of 17
Thread Starter 
Quote:
Originally Posted by mekaw View Post
because something needs to cool the water, even if it's a lot of water, over time it'll get warmer
Quote:
Originally Posted by fat_italian_stallion View Post
Without radiators there's nothing to dissipate the heat so the water in the reservoir will just get hotter and hotter and hotter. The only way you wouldn't need a radiator while watercooling is if you use geothermal cooling, which would be running your tubing down through the dirt about 10ft under the ground where it's around 50c all of the time. you would just then need to coil enough tubing in circles for it to dissipate enough heat
Ahhh I forgot to write it in my original post (but I have it written in the attached picture). I'm using an aquarium chiller (1/2hp).
post #9 of 17
Quote:
Originally Posted by usmcz View Post
Ahhh I forgot to write it in my original post (but I have it written in the attached picture). I'm using an aquarium chiller (1/2hp).
ooooo now it makes sense why no radiators. A larger reservoir will only help you for a few minutes. I'd just place the cooler in another room and run tubing through the wall to it. You will want to see the amount of BTUs the chiller can dissipate first and then see how much each pc outputs in order to see how many pcs you can inevitably attach to it. I would only run 1 high end or 2 mid range rigs on a 1/2 hp chiller.
 
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post #10 of 17
Thread Starter 
Quote:
Originally Posted by fat_italian_stallion View Post
ooooo now it makes sense why no radiators. A larger reservoir will only help you for a few minutes. I'd just place the cooler in another room and run tubing through the wall to it. You will want to see the amount of BTUs the chiller can dissipate first and then see how much each pc outputs in order to see how many pcs you can inevitably attach to it. I would only run 1 high end or 2 mid range rigs on a 1/2 hp chiller.
It claims 5400 btu's in the specs. I'm not doing a large amount of water to necessarily have a few *C better temps. I was thinking:

1) Nice to have a large res, and it would allow me to use a proper sized pump for the chiller (wants 750-1200gph pump) so it could circulate the water in the big res and chill it appropriately (and not freeze). Plus, if I hook up the cooling in a series, the hot water would have to run through each of the cpus until it hits the chiller, so the 2nd, 3rd, 4th, etc cpus would keep getting increasingly warmer. Not to mention CPU blocks/fittings aren't meant to take that kind of pressure (1050GPH pump being used).

Overall, I think a larger res would also just alleviate some stress on the whole system.

2) Allow me to conveniently grow the number of rigs using this single cooling system.

I'm not going for super high end rigs, actually, they'll all be basic P67 based i7 2600k rigs folding on CPU only. Very minimalistic. From the numbers I've seen ~200 watts per cpu (although I know the OCZ Cryo-Z is rated to only cool about 120w and it can pull an o/c i7 920--which can break 250w--to about 16*C). I'm not trying to insane temps or break records. If I could run the chips at 70*C under full load I'd be happy. It will just be nice to have less noise and reallllly nice to not have all that heat being dumped into the room and blown all over.

I'm thinking I should be able to cool up to 4-6 cpu's with this setup at max. I guess it depends on how cool I actually want them to be and how often I want the chiller to be running.

I've only found 1 real thread on here about chillers and that was FlashG's input, so I intend to make a work log and post results.
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