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Contemplating TEC

post #1 of 13
Thread Starter 
Hi, I've been interested in pushing my 1090T a bit further than my humble watercooling loop i've got atm so was looking at adding a TEC plate in. I've read through a bit of the forum and kind've getting to jist of what is required for using TECs.

My problem atm is trying to find a site that sells TECs to the UK, also i've got a heatkiller rev 3 Cu atm and if i can i'd rather use that and go direct die to try and prevent sprialling costs. If not i saw that Ultrasonic 2 had made some custom blocks are any for sale?
Thanks
Warejon9
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post #2 of 13
I don't know if you know about this method, but you can get a cheap water block, and sandwhich the TEC between two of them and have the TEC cooling down the coolant in your CPU loop.

FrozenCPU sells TECs and will ship to the UK.
post #3 of 13
Thread Starter 
I thought bout that, but then would need an extra pump. The case i'm using is a define R2, and i would ideally like to keep it as clutter free as possible, hence the direct die.
Thanks for the heads up about frozen cpu will check it out
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post #4 of 13
You'll prob need more than one TEC tbh.

Normal TECs range up to around Qmax (the maximum amount of heat they can move) 400W, but you wont want to be running your TECs at 100% since they'll be too inefficient. The most benefit is seen below 60%.

Your CPU will be putting out probably in the region of 200-300W on load.


As for buying them, for a tester on my project I have bought two 545W TECs off ebay from america, they arrived in about a week...
    
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post #5 of 13
Thread Starter 
Yea i'd read mixed things about buying tec's of ebay due to them not stating the qmax, just the amount of power they use. How are you cooling your tec's or are you using them as a chiller instead?
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post #6 of 13
Quote:
Originally Posted by warejon9 View Post
Yea i'd read mixed things about buying tec's of ebay due to them not stating the qmax, just the amount of power they use. How are you cooling your tec's or are you using them as a chiller instead?
I'm not actually using them at the moment, it's a project in progress.

I will be cooling them using a custom waterblock, while they cool a piece of 40mm plate aluminium on my CPU. Then depending on the results of that, I may order some new TECs.

I still need the PSU and waterblocks finishing however.
    
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post #7 of 13
Thread Starter 
Ok, will you not have 20mm of the tec hanging off the side of your aluminium plate? (i've seen a copper plate here http://www.frozencpu.com/products/24...tl=g30c105s188)
Where are you getting the waterblocks? Or are you making them yourself?
I'm trying to find the place where Elloquin got the 800qmax tecs :S
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post #8 of 13
Sorry, 40mm thick. the plate is 170x100mm.

I believe elloquins TECs came from here:

http://www.customthermoelectric.com/

This is the list of the TECs you will want to look at:

http://www.customthermoelectric.com/tecs_imax.html

That's also where I was looking at buying from, but the ebay TECs are half the price

I wanted to test everything out on some cheap equipment before jumping in with the best quality TECs, and if the performance is ok, I'll prob stick with these.

After all, I will be using about 600W to cool my CPU...


Also take into consideration what PSU you will be using, I have seen some auxiliary PSUs that hook up to normal comp PSUs and start when the PC starts, but those will be 12-13V without voltage control, which isn't ideal but can be very functional.

The other end of the scale is the type Elloquin uses, which is a 48V meanwell (as I remember) ~ a high grade bench PSU.

In between that, there are many high amperage PSUs for various applications. The one I have my eye on is a 30V 30A PSU. Typical places you'll find them include radio/audio PSUs, battery charging PSUs from remote control cars, or even smaller models of bench PSUs like the meanwell ones.
    
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post #9 of 13
Thread Starter 
Yea i was looking at an aux PSU, as was going to set it at 12v and forget about it. I'm planning on testing the cooling on a beaten up amd athlon, practise insulating as i'm aiming to try and get into the -'s.
Thanks for the links, yea the ebay stuff is a lot cheaper but you can't find anything above 270qmax, the 545's you've got are around 270 i think...
I might just try with a single 400 qmax at 12v underneath my waterblock, and then upgrade it next year.
Edited by warejon9 - 5/18/11 at 9:18am
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post #10 of 13
I found you 2
http://uk.farnell.com/jsp/search/bro...atchallpartial
http://uk.rs-online.com/web/search/s...93&Ntt=peltier
out of UK you will find more powerful tecs farnell and rs have max 340 qmax
what diam. do you want it?40x40-50x50-62x62?
The most powerful ive ever seen is wellen TEC1-24130 62x62 506 qmax China
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