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Mineral oil cooling - Page 2

post #11 of 46
Quote:
Originally Posted by Fir3Chi3f;14074239 
I'm always interested in knowing how long a setup like this lasts. Assuming there are no leaks, I was thinking that the oil would get dirty and not work as well or just smell/look bad. Keep us posted!

These systems can run just as long as any air system. The only thing you have to watch for is the thermal paste deteriorating.
post #12 of 46
Any progress?
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Ninja
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post #13 of 46
ok this definately sparked my interest.
i've had an idea for something similar to this for a very long time but i haven't had the money to pursue it.

i do have a question though, if youa re going to run the phase-change system:
1 - are you planning on putting the whole unit in the fluid?
2 - why would you need to cool the MO?
3 - what temps can MO drop to before any sort of freezing?
4 - if the MO does freeze at some point, would it affect the MO's structural integraty?

my idea was to use TECs on every heat producing aspect of the PC. The oil would simply be there to keep condensation away from my components. I though about pumping the mineral oil, but as said in previous posts, you can only pump it above certain temps without destroying your pump. I would also need a drip pan (hosed to a sink drain) for the outside of the tank (since that will surely condensate once your temps go below dewpoint).

another thing i was thinking, if the temps are crazy low, the outside of the case will most likely start building up ice. this could pose a problem if your case isn't thick enough (ice compression). As well as the tanks questionable integrity, you'd have to seal off the top so that absoluty no air is touching the oil since ice could very well build up on top of the oil (very VERY bad if you turn it off).

i am definately subscribing to this. please detail this as much as possible as i am extremely interested in how you are approaching this.

BTW: good stuff man cheers.gif
post #14 of 46
I built this one a long time ago using an old eMachine PC I had laying around.

002-1.jpg
 
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post #15 of 46
haha awesome
i see that it's IDE and that you've got an old school copper core heatsink.
very nice....love the shells.
question,
how did you build that shell on top...what kind of material is that?
i was preparing something similar but i'm using acrylic since it's extremely easy to "heat n bend"
post #16 of 46
Planning on using a phase change unit for the cpu and gpu, however I'm open to other suggestions that might cost less than 1500 dollars or be more effective for the same price. One other possibility is a water loop that goes through some kind of cooler to reduce the temperature of the water to below ambient.
post #17 of 46
Since it's not the best idea to circulate mineral oil through a pump, much less at a very cold temperature, you should drop a small pc water cooling radiator into the mineral oil and have a solution of antifreeze and water running through the radiator.

Assuming you are making a water chiller, have the chilled water mixture run through the radiator which in turn cools the mineral oil.

Pro:
You cool the mineral oil very low while avoiding circulation of mineral oil through a pump.

Con:
lolwut


If you want to make a water chiller you can make one from a typical window unit as I did. You just need refrigerant gauges, refrigerant, and ya' gotta' braze a fill port(lack of better term) onto the suction line.

Plus whatever materials to build a box so you can encase your evaporator coil in it.

Now, there are other things to think about here, the mineral oil may get too cold and form condensation in the tank which drips into the oil and collects at the bottom; eventually shorting something out when enough is built up.

You can simply avoid that by keeping the oil at a modest 60f or so.


Edit:
I made a piktchure.

cJTS4.png

To be honest I always wanted to do this myself. tongue.gif
Edited by Khaotik55 - 9/24/11 at 12:28am
post #18 of 46
This is neat, will check back for updates smile.gif. Seems like it should work, glad you're experimenting for the rest of us biggrin.gif.
    
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post #19 of 46
There's really no problem with running mineral oil through a pump as long as it's not gel-like and/or almost frozen. I ran 2 DDC pumps in mine and they're both still going strong in my rebuild of the system.
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post #20 of 46
Quote:
Originally Posted by Khaotik55 View Post

Since it's not the best idea to circulate mineral oil through a pump, much less at a very cold temperature, you should drop a small pc water cooling radiator into the mineral oil and have a solution of antifreeze and water running through the radiator.
Assuming you are making a water chiller, have the chilled water mixture run through the radiator which in turn cools the mineral oil.
Pro:
You cool the mineral oil very low while avoiding circulation of mineral oil through a pump.
Con:
lolwut
If you want to make a water chiller you can make one from a typical window unit as I did. You just need refrigerant gauges, refrigerant, and ya' gotta' braze a fill port(lack of better term) onto the suction line.
Plus whatever materials to build a box so you can encase your evaporator coil in it.
Now, there are other things to think about here, the mineral oil may get too cold and form condensation in the tank which drips into the oil and collects at the bottom; eventually shorting something out when enough is built up.
You can simply avoid that by keeping the oil at a modest 60f or so.
Edit:
I made a piktchure.
cJTS4.png
To be honest I always wanted to do this myself. tongue.gif

I've seen comps that have been submerged in oil for years and have had no problems with the rad outside (Look up Pugetsystems). I saw them at PAX Prime, they had a dual socket config with a 9x120mm radiator (can't remember exact size) and they said they've had it going for 2 years without any problems. Rkingsmiley.png
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