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Triple peltier chiller - Page 27

post #261 of 748
I know, plorbem with past 24V 12Amps is that avalibility is low, Cost is also high redface.gif
post #262 of 748
Thread Starter 
the wavy block will be 12 mm deep into 15mm block and 3 mm wide , the hot water will go into the block flowing over the 3x12710 making a few passes over them ( hoping 4-5) then it will go onto the 3x12715 and make a few passes to that aswell i kinda want the flow restriction as my loop flows was to fast haha my pumps are to much being 750lph at 11v im running them at 12v and the hot side will be just a dual pass block will have 3-4 channels each side just to keep it flowing east as going threw a huge waterblock plus 3-4 rads it will get a big loop biggrin.gif as i want the water as cool as possable when running them things at full 12v over 1000w of heat in the end wink.gif mostly will go into heating the house or at least up stares thumb.gif keeps the pc cold and keeps me warm everyone wins just think i could cool a overclocked xeon and cross fire 6870's and still be alot colder then room temps its crazy

lachen.gif wonder how many milling bits will die in the process lachen.gif

now off to play need for speed again as trying to complete it biggrin.giftongue.gif
Edited by lzf995 - 11/8/15 at 4:03pm
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post #263 of 748
Haha yeah I'm not envious of all that drilling/milling work. Use some Briggs n Stratton 4 stroke engine oil, worked perfectly as a cutting fluid for me, bit stayed sharp and cold and it carries all the cuttings away. Any engine oil should work if you don't have cutting fluid.

That design sounds about right and both sides should flow as they need to. You're giving me the bug to build a proper chiller without rads. Need moaarrrr $$$$$ haha.

Iwamoto, I was talking about the 24v 28a tec from custom thermo, you'll only need 2 of them and it will outperform whatever else you already have by enough to make it worth the cost.
post #264 of 748
You can use engine oil as lube. If you want 4storke oil. mix the engine oil with kerosine and dilute it. wink.gif

Well, I'd say more peltiers is better. I can get the parts cheap in china and get it shipped over.
500RMB for 4 water blocks that can cool 6 40mm peltiers, + 12 TEC1- 19912

If you buy the best drill bit in china, or good to best ones in your contunrty. It should still work sharp after all the process thumb.gif
post #265 of 748
Thread Starter 
I'll just use some milling fluid biggrin.gif that works just as good but gearbox oil works well as I'm a mechanic so engines n gearboxes oils the amount of different ones you could use depended on speeds and bit type

Also yea I need to buy a new plunge mill bit and a few side cutting ones poor drill press gonna get some use maybe I'll buy a new head bearing case it shatters tongue.gif
but yea build a chiller to cool your direct die wink.gif we'll start something between us a cascade tec build lol well at least I will build one over Christmas most probably hopefully by then it will be a 6x 12715 all pwm controlled biggrin.gif then a dual 12726 direct die for them -30°c lol
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post #266 of 748
I'm tempted to buy 2 more of the kryotherm TEC's and sandwich them between a couple of modified 6 DIMM ram water cooling blocks from alphacool, I'll have to modify them a bit to get better heat transfer, maybe cut a bunch of thin slots in the base and change the plexi top to be slightly more restrictive. I can buy a $45 pump, 2 ram blocks, and 2 more TECs and I'd be good to go. 2 more of the Kryotherms would give me a Direct Die TEC with Chiller that would handle CPU 100w Heat Load> Direct Die TEC 100w Qc @ 30*c dT + ~200w TEC Power Consumption > Chiller 300w Qc @ 20*c dT + ~450w Power Consumption = ~750w for 720mm worth of radiators with 3000 rpm fans to dissipate to a 5*c dT above ambient for a total delta of 45*c from ambient to IHS temp. Factor in that my CPU heat load might be greater and all the thermal losses and I'd still be at a 35-40*c dT below ambient at 100% CPU load, could be good for clocking that 4670k ES to 5.2ghz. It's a bit expensive for me right now though, spent too much on this setup already, so I'll build what I have now and If I get board over Christmas maybe I'll treat myself to a proper chiller tongue.gif, It will actually be similar to Pucks cascaded chiller but my TEC's aren't as efficient as his 62mm 400w Qmax TECs, that would be a better option but I can't afford all the custom blocks for 62mm TEC's, I got my Apogee XL in the mail and it is perfect for my direct die 40x35mm Kryotherm and the alphacool X6 ram blocks would be ok on the chiller TECs with some modifications to enhance the heat transfer, I wonder if I could try out my chinese 60amp manual PWM controller or if I could splurge for a couple more of these PID PWM controllers to keep the chiller loop at a set temp, I really like the PID one but I wish it could handle more amps.

Once you get yours built that might spur me along a bit, plus I want to start spending money on my motorbike rather than on my PC, but I enjoy the hobby so I'll keep refining it, maybe my little 12715 chillers with gpu blocks/heatsinks will be enough for me to get the 4670k where I want.
Edited by LiamG6 - 11/10/15 at 4:06am
post #267 of 748
Thread Starter 
Just wondering how much better the tecs that are 10x more then cheaper ones are really worth it as there's not much difference between them just a bigger price only upside you can buy more powerful ones over 545w and have custom made ones
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post #268 of 748
Quote:
Originally Posted by lzf995 View Post

Just wondering how much better the tecs that are 10x more then cheaper ones are really worth it as there's not much difference between them just a bigger price only upside you can buy more powerful ones over 545w and have custom made ones

You get what you pay for. The cheap Chinese TECS often do not perform to spec and are of lesser quality. Poorly soldered wires, bad lapping, wild resistance differences etc. Ultrasonic2 learned this the hard way as he bought a whole tray from China once and over half of them ended up in the trash. The more expensive one's like from CTE for a small additional cost can also be height matched and resistance matched. Haven't seen to many people mention that recently. Resistance is also a major part of how well a TEC will perform.
    
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post #269 of 748
Thread Starter 
Hmm intresting I was more thinking as mines a budget build just thinking how much I'm missing but the wires are bit cheap n not silled Aswell I had to put more silicon around them and yea I did lap my peltiers and water blocks as they wasn't very flat but I mean more of the insides like they only use few more couples so more efficient but by how much like paying 10x the price really worth the few problems that was fixed for free? Or paying that much for few extra couples that only makes a small % of difference ?
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post #270 of 748
This is a long read but it basically chronicles my adventures with cheap TECs and more expensive one's. http://www.overclock.net/t/730714/elloquins-2-x-50mm-tec-block-now-at-5ghz-news-11
In the end it was a huge difference when all the little things are adding up.
    
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