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Watercooling - Aquarium heat dissipation

post #1 of 13
Thread Starter 
Im sure it's been asked before, nevertheless:

How feasible is it to use an aquarium (90litres) to dissipate some heat from a watercooling loop. And what size aquarium would be needed to dissipate enough heat (400W) and maintain a temperature of under 27C in a room 20C


Currently i have a 3x120 rad and 1x120 rad. Im only using two fans in total and thats enough to keep temperatures under 60 on both q6600 + 5850 oc'd.

If i put a 120mm rad in the aquarium would this help loop temps much?


Reasons i ask: fans are noisy, i might buy a large fish tank and some ppl use 2x300W heaters for v large tanks i think. (although heaters ofc have thermostat and arent on all the time!) My 96L aquarium had a 100W heater only i think though.

Please help!!!!!

(i know a little about physics but have no idea about how to work out heat dissipation in this case!)
Edited by nelson - 5/18/11 at 5:37pm
post #2 of 13
It would help the temperature of you're loop by putting a radiator in the water. The one problem no matter the size if ran long enough the water will heat up and there for absorb the heat from the computer with no way to cool down. In a 24/7 build you wold need a way to cool the water and prevent it from evaporation. As for the size needed for 400W no idea.
    
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post #3 of 13
The water temp of the fish tank is gonna determine the cooling capacity. I would personally just put fans on all spots in push pull. Run them at a very low speed, problem solved.
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post #4 of 13
Thread Starter 
Quote:
Originally Posted by Asustweaker View Post
The water temp of the fish tank is gonna determine the cooling capacity. I would personally just put fans on all spots in push pull. Run them at a very low speed, problem solved.

I could do but fans are loud on a high FPI radiator which my 360rad is... also that is boring.
post #5 of 13
Thread Starter 
I dont want the tank water temp above 27C if possible - that means i could keep fish in it still. However i could buy a larger tank
post #6 of 13
Quote:
Originally Posted by nelson View Post
I dont want the tank water temp above 27C if possible - that means i could keep fish in it still. However i could buy a larger tank
If the ambient temp. of your room is 20c, the why would putting the rad. in warmer water help??
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post #7 of 13
Thread Starter 
Quote:
Originally Posted by Asustweaker View Post
If the ambient temp. of your room is 20c, the why would putting the rad. in warmer water help??

Water temperature in cooling system far exceeds 27C when pc is on... if not at 30% load.

Anyway, 27C is max safe temperature for fish. The aquarium water will be at ambient unless heated by this radiator. Which is why i pose the question: how much heat can my fish tank dissipate?!!!
post #8 of 13
The water in the tank will continue to climb as heat is passed to it from the radiator that is submerged in it. Without a way of dispersing the heat from the water in the tank, it will continue to climb until it is the same temp as the radiator that is submerged in it.

If you are really keep to run silent, then you should read more on passive cooling - or just use larger, quieter fans.
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post #9 of 13
i dont think a fish tank will really dissipate any considerable amount of heat... its sitting water. You would have to move it or blow air on it to help cool it..

*you dont just take heat from point A and move it to point B ..and get 'colder' temps..You have to get rid of the heat somewheres... you cant just move it around..eventually your loop will just heat up.

ie- I use a Zalman Reserator Tank, hooked up to a PA120.3 rad. <- This is my w/c loop... If I shut the fans off on the rad.. it only takes ~40min for CPU and GPU temps to climb 5-6c. Thats heating up over 4Qrts of water, 5c in ~30min.... ..these are with daily clocks too.. not benching
post #10 of 13
I'm sure thats why he asked about the aquarium chiller...the water isn't just sitting there
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