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Making a Water Block sanwich, using TEC peltiers and Old Heatsinks!

post #1 of 2
Thread Starter 
I was looking for some help with an idea I was working on. I dropped an old single core amd into a 5 gal aquarium and filled it with mineral oil. It takes a few hrs but it will idle after about 3 hrs at 56 deg C. I was looking at taking two low wattage peltiers like the 12703 series and using the two cold sides to sandwich a water-block of copper being sandwiched by two 40 x 40 mm copper plates and then some old intel cpu heatsinks, pumping the mineral oil out of the tank and through the waterblock and then back in the tank around the PSU and CPU. I planned to control all this(the TEC's x 2,old CPU heatsinks x2, and a small 3-12v water pump) from a Rheosmart 5 way controller that allows 5 different 12V, 0-30 watt control. I was wondering the flaws in this design, i was only looking to be able to control the temp of the tank, not get it so cold for overclocking, but just to be able to adjust it, looking to get an ambient temp of 28 deg C if I can. I was also trying to be able to do this without purchasing a separate PSU.
Edited by DoyleGlaser - 12/7/12 at 3:52pm
post #2 of 2
You are proposing a basic chiller, but there are a few flaws in the design.

TEC's draw way too many amps to be controlled with a Rheostat type controller. A robust PWM controller would be the proper way to control it, besides using a proper adjustable voltage dedicated PSU or a smart controller like the Arqtik Dew-point sensing unit that can keep the block 1c above Dew point to prevent condensation.

I modded a second ATX PSU in run as a slave @ 14.1v that controls my TEC block, Pump, and radiator fans. An Arqtik bay controller handles the TEC's DC% in real time.

Also, a TEC that is low enough power to be cooled by a standard CPU heatsink will not be powerful enough to do much of anything in a chiller setup...although those beastly server heatsink/fan combos can cool over 100w but they are big and loud.

I suggest you both post this in the TEC forum, and check out arqtik's website to see the trick controllers and pre made chillers they have to offer. They are currently swamped for holidays and not taking any more orders, but should be resuming their shop in a few weeks.
Behemoth
(25 items)
 
  
CPUMotherboardGraphicsGraphics
Intel i7 4790K "Relidded" @ 5ghz <50c Asus Sabertooth Z97 MK1 Custom WC'd 7970 3GB @ 1100/1500 stock volts Custom WC'd 7970 3GB @ 1100/1500 stock volts 
RAMHard DriveCoolingCooling
2X4GB Patriot Viper Extreme 1TB Velociraptor 10k RPM w/ 64MB Cache Two Arqtik TEC Chillers in Series Archimedes TEC block w/TN660 TEC 
CoolingCoolingCoolingCooling
Two Ported/tapped MCP655 Pumps 2x Black Ice GTX 480 Gen2 Rads DD dual drive bay Res with LCD water temp monit... GPU Loop: Modded Enzotech Sapphire CPU blocks, ... 
CoolingOSOSMonitor
36x Globe 120mm 80cfm server fans Win 10 Pro Mint 15(KDE) 4K 28" Samsung U590D 
KeyboardPowerCaseMouse
Logitech G710+ Mechanical CM Silent Power M 1000watt Main, OCZ Z850W Slave Custom Mountain Mods Extended-Extended Ascension Logitech G502 Proteus 
Mouse PadAudioAudioAudio
Homemade 16ga 304 Stainless pad, Neoprene backed Aune T1 DAC Various Tubes: Mostly switching from 60's GE "S... AKG K7XX Headphones 
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Behemoth
(25 items)
 
  
CPUMotherboardGraphicsGraphics
Intel i7 4790K "Relidded" @ 5ghz <50c Asus Sabertooth Z97 MK1 Custom WC'd 7970 3GB @ 1100/1500 stock volts Custom WC'd 7970 3GB @ 1100/1500 stock volts 
RAMHard DriveCoolingCooling
2X4GB Patriot Viper Extreme 1TB Velociraptor 10k RPM w/ 64MB Cache Two Arqtik TEC Chillers in Series Archimedes TEC block w/TN660 TEC 
CoolingCoolingCoolingCooling
Two Ported/tapped MCP655 Pumps 2x Black Ice GTX 480 Gen2 Rads DD dual drive bay Res with LCD water temp monit... GPU Loop: Modded Enzotech Sapphire CPU blocks, ... 
CoolingOSOSMonitor
36x Globe 120mm 80cfm server fans Win 10 Pro Mint 15(KDE) 4K 28" Samsung U590D 
KeyboardPowerCaseMouse
Logitech G710+ Mechanical CM Silent Power M 1000watt Main, OCZ Z850W Slave Custom Mountain Mods Extended-Extended Ascension Logitech G502 Proteus 
Mouse PadAudioAudioAudio
Homemade 16ga 304 Stainless pad, Neoprene backed Aune T1 DAC Various Tubes: Mostly switching from 60's GE "S... AKG K7XX Headphones 
  hide details  
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