Exploring Below Ambient Water Cooling

[Motopsychojdn]

Mountainmods, caselabs, Old munitions case? 😛
I vote for the classic stinger missile box.....
http://www.google.co.uk/imgres?imgurl=http://i122.photobucket.com/albums/o245/ick-xbox/rifle%2520collection/Other%2520Gun%2520Items/55eb5688.jpg&imgrefurl=http://fnforum.net/forums/freestyle-room/15379-bought-stinger-missile-case.html&h=597&w=799&sz=75&tbnid=ZMhy-KAs30JoXM:&tbnh=90&tbnw=120&zoom=1&usg=__5NuppfpVIiXaXnE1N6f1kup16uY=&docid=qJn8hM7OrYw2XM&hl=en&sa=X&ei=KWE2UOKbJOe40QX2woGABA&ved=0CFgQ9QEwBA&dur=3270
Plenty of modding potential 😛
Moto

 

[4Ryan6]

Nice Ry, always pushing hehe,
theres some nice labcoats on Ebay cheap right now and a plug socket could supply the Einstein hairdo
just sayin'.....
😛
Moto

Hey, nothing is learned without experimentation man!

The 1 1/2gallon test yielded a 5.3c water temp drop in 2 hours
4 gallons a 2c drop in 2 hours.
6 gallons a 1.1c drop in 2 hours

So about a quart for the Reservoir volume?

Interesting!

 

[cbrunnem]

Hey, nothing is learned without experimentation man!

The 1 1/2gallon test yielded a 5.3c water temp drop in 2 hours
4 gallons a 2c drop in 2 hours.
6 gallons a 1.1c drop in 2 hours

So about a quart for the Reservoir volume?

Interesting!

well running at what you are running at now with those numbers you are removing about 60 watts of heat a hour so based on that your temp would drop 31 degrees in 2 hours with a quart of water.

4.186 j/kgk * .25 gallons *8.35 pounds gal / 2.205 (kg to pound) * T = 120 watts solve for T

 

[4Ryan6]

well running at what you are running at now with those numbers you are removing about 60 watts of heat a hour so based on that your temp would drop 31 degrees in 2 hours with a quart of water.

4.186 j/kgk * .25 gallons *8.35 pounds gal / 2.205 (kg to pound) * T = 120 watts solve for T

That will change when the GPUs are added to the mix.

 

[4Ryan6]

Mountainmods, caselabs, Old munitions case? 😛
I vote for the classic stinger missile box.....
http://www.google.co.uk/imgres?imgurl=http://i122.photobucket.com/albums/o245/ick-xbox/rifle%2520collection/Other%2520Gun%2520Items/55eb5688.jpg&imgrefurl=http://fnforum.net/forums/freestyle-room/15379-bought-stinger-missile-case.html&h=597&w=799&sz=75&tbnid=ZMhy-KAs30JoXM:&tbnh=90&tbnw=120&zoom=1&usg=__5NuppfpVIiXaXnE1N6f1kup16uY=&docid=qJn8hM7OrYw2XM&hl=en&sa=X&ei=KWE2UOKbJOe40QX2woGABA&ved=0CFgQ9QEwBA&dur=3270
Plenty of modding potential 😛
Moto

😱 Those dual power supply cases are freaking expensive!

 

[Motopsychojdn]

Yup, which is why you and I prefer to mod what we have
Moto

 

[4Ryan6]

Yup, which is why you and I prefer to mod what we have
Moto

Yeah if I proceed with this newest brain fart I'll just use the RadBox before I'll pay a minumum of 350 bucks!

 

[cbrunnem]

That will change when the GPUs are added to the mix.

looking at purely the math i wonder if the peltier can take the extra heat and still cool down the water... cause based on the numbers you provided the peltier is removing 60 watts more then is added per hour.

 

[4Ryan6]

looking at purely the math i wonder if the peltier can take the extra heat and still cool down the water... cause based on the numbers you provided the peltier is removing 60 watts more then is added per hour.

The water volume is a variable.

Have you figured that into your calculations?

The time of operation temperature drop will increase as water volume decreases.

Just like it has dropped going from 4 gallons to 1 1/2 gallon, it will also increase in dropping the temperature going from 1 1/2 gallon down to approximately 1 quart in the reservoir.

Put it this way, the temperature drop will be too drastic going to the 1 quart reservoir alone with just the CPU involved, the GPUs should add enough heat to stabilize it.

The cold transfer block has already frozen and blocked the water flow twice, mentioned somewhere further up in the thread, did you know that?

 

[4745454b]

I never said it would be cheap. Just nice to have a great performing setup that is movable. (and no 65gallon container sitting next to it.)

 

[cbrunnem]

The water volume is a variable.

Have you figured that into your calculations?

The time of operation temperature drop will increase as water volume decreases.

Just like it has dropped going from 4 gallons to 1 1/2 gallon, it will also increase in dropping the temperature going from 1 1/2 gallon down to approximately 1 quart in the reservoir.

Put it this way, the temperature drop will be too drastic going to the 1 quart reservoir alone with just the CPU involved, the GPUs should add enough heat to stabilize it.

The cold transfer block has already frozen and blocked the water flow twice, mentioned somewhere further up in the thread, did you know that?

....? is almost a linear relationship... i calculated the watts dissipated at each volume and took a round average as the 60 watts an hour.

my point was that in theory the peltier was removing 60 watts an hour from the data you provided. with that being said, unless your gpu's add less then 60 watts an hour of heat to the system you peltier will not be able to keep up.

also the fact that the block freezes up doesnt change the fact that the peltier can only remove so much heat.

 

[4Ryan6]

I never said it would be cheap. Just nice to have a great performing setup that is movable. (and no 65gallon container sitting next to it.)

It would be nice to have it all in one and I did do some serious looking and investigating yesterday but everything I found that would work was just too expensive.

Plus the fact I really didn't like the looks of what I found that would work, I think the mountain mod cubes look great in pictures, I just don't want one on my desk.

 

[4Ryan6]

....? is almost a linear relationship... i calculated the watts dissipated at each volume and took a round average as the 60 watts an hour.

my point was that in theory the peltier was removing 60 watts an hour from the data you provided. with that being said, unless your gpu's add less then 60 watts an hour of heat to the system you peltier will not be able to keep up.

also the fact that the block freezes up doesnt change the fact that the peltier can only remove so much heat.

That's True.

I missed you had previously calculated;

your temp would drop 31 degrees in 2 hours with a quart of water.

were you talking 31 degree c?

I think you need to recalculate?

 

[earl45]

That's True.

As my dad used to say, maybe I should just leave well enough alone!

I have this case I'm willing to let go to further your experiment and build my knowledge
through you. lol

http://www.coolermaster.com/product.php?product_id=4

 

[4745454b]

Jesus, you want pretty too?

I was thinking about maybe something from ebay. This is horribly expensive for what you get, but still less then $300+ Shouldn't have to mod it much...

http://www.ebay.com/itm/ATX-FULL-TOWER-CASE-COMPUTER-CASE-NEW-TP-050-/390459048314?pt=US_Computer_Cases&hash=item5ae92c417a

 

[earl45]

Jesus, you want pretty too?

I was thinking about maybe something from ebay. This is horribly expensive for what you get, but still less then $300+ Shouldn't have to mod it much...

http://www.ebay.com/itm/ATX-FULL-TOWER-CASE-COMPUTER-CASE-NEW-TP-050-/390459048314?pt=US_Computer_Cases&hash=item5ae92c417a

Where are you getting 300+ from?

 

[4745454b]

Yeah if I proceed with this newest brain fart I'll just use the RadBox before I'll pay a minumum of 350 bucks!

 

[earl45]

Yeah if I proceed with this newest brain fart I'll just use the RadBox before I'll pay a minumum of 350 bucks!

Sorry I thought you was responding to my post, about the case I have on hand.

 

[4Ryan6]

Jesus, you want pretty too?

I was thinking about maybe something from ebay. This is horribly expensive for what you get, but still less then $300+ Shouldn't have to mod it much...

http://www.ebay.com/itm/ATX-FULL-TOWER-CASE-COMPUTER-CASE-NEW-TP-050-/390459048314?pt=US_Computer_Cases&hash=item5ae92c417a

You're joking right?

That case looks like a member of the Lee family!

Ug! :lol:

 

[4745454b]

You can always paint it. Some nice racing stripes....

Functional, pretty, cheap. Pick any two of the three you like.

Edit: Forgot to point out. Here you are with a giant ice chest next to your computer and you want to talk to me about pretty?

 

[earl45]

You're joking right?

That case looks like a member of the Lee family!

Ug! :lol:

What did you think about the case I post?

 

[4745454b]

Doesn't hold two PSUs.

 

[Motopsychojdn]

It will if its told to
Moto

 

[4Ryan6]

You can always paint it. Some nice racing stripes....

Functional, pretty, cheap. Pick any two of the three you like.

Edit: Forgot to point out. Here you are with a giant ice chest next to your computer and you want to talk to me about pretty?

Come on man! The Ice Chest is Blue! I Love Blue! :lol:

The RadBox is beige, I'm already facing one paint job! :lol:

Joking aside I was looking at one of those Mountain Mod Cube type units, they're massive and can run multiple power supplies some up to 4, it would be an absolutely perfect solution and the one I do like is very expensive.

It's not exactly like I have a problem frivolously spending money if that was the case I wouldn't be running 2 Full Coverage Water Cooled 580GTX, it's just if that amount of money is going to be spent on my computer setup, I'd be more likely to put it into something else, like a high capacity SSD, or something like that.

 

[4Ryan6]

What did you think about the case I post?

As far as a stand up tower style like the Stacker, it would have to be capable of running 2 power supplies and even if it can run 2 power supplies like the AZZA Fusion 4000 I just couldn't find a suitable location to mount the peltier assembly inside it anywhere.