New Guy with a crazy Idea

[Ometoch]

I've just got into Liquid Cooling, and I have an Idea I think might work. Let me know what you think. (Don't shred me too bad if it's dumb) I see a lot of peltier/liquid-cooled systems, using a peltier to cool the chip, and liquid to cool the peltier, with the liquid cooled by fans.... How about a silent system, using peltiers to cool your liquid, and just a pump to circulate it? Let me know what you think. THANKS!!!!

[dicki]

welcome to the board :)

not a bad idea but....

what do you cool the pelts with?

somewhere in the system you need to transfer heat to a very large heatsink. in most cases this is the air so unless you have a HUGE amount of surface area on your radiator (bong, resovoir, whatever) you will need fans in there somewhere to get a decent volume of air across your hot surface to cool it down

dicki

[Synthohol]

First off, :D :D Welcome to LiquidNinjas!:D :D

Secondly, if a peltier gets really cold on one side and really hot on the other, using one too cool off say the resiviour, the hot side would either burn-out or negate any cooling done to the water.
unless of course you have a cooling system for your cooling system.
i do appreciate your unconventional thinking though! some of the best inventions were by accident! look at X-rays.

[Ometoch]

Wow, you guys are awesome. THanks for the warm welcome. I think I might have the excess heat problem figured out, but how much heat are we talking here? like over 100 deg C? If you could give me a ballpark figure it would help a bunch.

[Player0]

Welcome to the boards. Remember with peltiers, you need MORE cooling power than without using peltiers. Peltiers generate heat, generally measured in watts. A 156w peltier generates about 225w wats of heat, about the same as four desklamps. But also remember that a peltier is a heat pump. Although it generates 225w of heat by itself, you need to add to this any heat that you are transfering. So if you need to move all 100w of heat from your CPU through this pelt (which you do), you now have 325w of heat to transfer in to the air.

Peltiers are great for getting sub-ambient CPU temperatures, but are not for quiet systems. Not only will you need more fans/radiators when using a peltier, your powersupply will also generate a lot of noise as it powers the peltier.

If you want a really quiet PC, you shouldnt use a pelt.

[bigg]

Originally posted by Player0
Welcome to the boards. Remember with peltiers, you need MORE cooling power than without using peltiers. Peltiers generate heat, generally measured in watts. A 156w peltier generates about 225w wats of heat, about the same as four desklamps. But also remember that a peltier is a heat pump. Although it generates 225w of heat by itself, you need to add to this any heat that you are transfering. So if you need to move all 100w of heat from your CPU through this pelt (which you do), you now have 325w of heat to transfer in to the air.

Peltiers are great for getting sub-ambient CPU temperatures, but are not for quiet systems. Not only will you need more fans/radiators when using a peltier, your powersupply will also generate a lot of noise as it powers the peltier.

If you want a really quiet PC, you shouldnt use a pelt.
if you get one of those new 3x 120 thremo chill rads and six 5v panaflows it may manage...

[Ometoch]

to be honest, I've never done any of this before, but, I'm thinking of using two closed loops of water.... one to cool everything in the comp, and the other to remove the excess heat from the pelts, and then into a large resivoir. I know, probably won't work, but hey, I'm bored. heh. anyways, thanks for putting up with my hair-brained ideas.

[dicki]

2 closed loops is very similer to what player0 does in his system and it works very well in deed... however like the man says thats some serious chilling you need on the hot loop of your system... or a very large resovoir... i used a gallon bucket of water for just a cpu and no pelt and it could only just cope with a duron at idle... if it went full load after about 5 hours temperatures became too high for comfort... to do a compleatly fanless system i'd recommend a massive water butt outside but for that you need a gigantic (noisy) pump... though you could also mount this outside...

dicki

[tripodal]

you might manage if you built a heatsink to replace the top of your computer, the surface area, like 10" by 25" may be eneough to cool one or two pelts... depending on how its constructed

[bigg]

a couple of 330 gallon oil tanks in the ground could work...

[dmarcum99]

I've thought about the idea of placing a peltier setup in/on the reservoir. I'm in the process of integrating a product from another industry into a reservoir and if the results are encouraging, I'll post.....

Even if they aren't, I'll post to see if there are other alternatives to enhance the design.

[NAR79161]

Yea im doing that exact same thing right now. I have three pelts to chill my res. Its comming along alright, im also dealing with the heat buildup problem. Ill probally have some pics soon, i have to have it done by march for a science competition im entering it in. Good luck and keep us posted

[Ometoch]

Well, I've been doing a lot of research lately on this whole thing... and for my first system, I think I'm going to back off just a bit. I got a good deal on a fridge cooling system, so I'm gonna use that, and run as cold as possible. The problem is, I need my system up and running in a couple of months, so I'm going to take time on the other system, and implement it in the next one I build. But, anyone who has any suggestions about the fridge idea, please let me know. thanks again for all your imput. I've learned TONS in the last few days.

[Brinky]

damn it! its so much easyier heating something then cooling!

what i would do... is use the pelts like you sayed 2 closed loops and put the pump in the FREZER with the rad and 3 fans to move the air big time

but then your frezer will get warm... so... what you can do.. big body of water... and a stong pump... that will do it NP.
3 drums and a 1/4hp pump should do it (if your pumping form out side or far away...
HEY THAT GIVES ME AN IDEA...! run my wc to the swiming pool!!!

[tripodal]

That is an amazing idea. Plus a swiming pool already has all the additives you need to stop growth.
So who here has a swimming pool?

[tripodal]

i supose the only thing now is, how do you keep the copper from corroding with chlorine / salt / aluminum? (pump)

Maybe a dual loop like P0 had.

[bigg]

i got 36K gallons of frozen pool in my backyard... only prob is it gets too hot in the summer... so the heat wouldn't be good. yeah, just stick a big ram in front of the output

[Ometoch]

I have a swimming pool, too, but, getting the missus to agree to using it as my cooler for my comp is not going to fly too wel. But, a question I have is, what can I add to water to substantially lower the freezing point of water, and is also clear, prefferrably.

[bigg]

ethanol, antifreeze. not exactly clear, but... 100% ethanol will do -108C.

[tripodal]

but unfortunatly it holds 1/2 or less the heat of water

[Brinky]

Originally posted by tripodal
i supose the only thing now is, how do you keep the copper from corroding with chlorine / salt / aluminum? (pump)

Maybe a dual loop like P0 had.

i do... yes a 2 closed loops... its is frozen... not the bottom of the pool... too bad cant use that in the winter..

[Brinky]

damn it there was this graph some where about heat conductivity/frezing point...
I remember that some ethenol makes water more conductive but too much brings it back down

[tripodal]

im willing to bet that a dual loop like P0's would keep a pool from freezing at a couple below 32f

[Brinky]

dude no way... my pool is FROZEN!! 5 ppl standing on it... thats some thick ice

[bigg]

mine can't freeze @ the bottom, cuz it is 81/2ft. down in the ground where its like 55 dgrees all the time

[^7_of_9]

A thought comes to mind. You know those fridges with the built-in Ice cube maker? Cannabalize that sucker ....

[Brinky]

my pool is like 8FtX 12FT 10FT deep... put since i cover it i cant drill holes...