Multiple TEC cooling

arken420 · 10-20-2003, 04:53 PM

I've got 3 potted 120WATT TECs I want to use to cool with, and after looking around a bit I was wondering if the following setup would work, and if anyone else has tried successfully using a pryamid type stack. I think that the two 120's would be able to dissipate both the CPU and the other 120, but I haven't done the math yet, and since the 120 is only touching 1/2 of each of the other 120's I'm a little skeptical. I'll try it anyways, with just a test block, but I just wanted to check and see if anyone had already tried it.

Les · 10-20-2003, 05:20 PM

Ji Kuang (aka LardArse and Miss_Man) was last seen with a similar set up , 2x172w,1x65, 1x80, http://forums.procooling.com/vbb/sho...?threadid=3293

Search of this forum (Miss_Man) and both OC's and OC(AU) under LardArse will produce some good TEC work

8-Ball · 10-20-2003, 07:04 PM

With regards to there being an overlap between the TEC on it's own and the the two TEC's above, I would have thought it wise to use an copper coldplate between the two layers, with the whole assembly insulated from the outside with neoprene foam.

8-ball

arken420 · 10-22-2003, 02:34 PM

I've decided on this setup. I'm in the process of getting my DIY cnc setup, it's a modified drill-press, so it'll take me a few months to update this, but fear not I will be back sooner or later.

N8 · 10-22-2003, 03:21 PM

Quote:

Originally posted by arken420
I've got 3 potted 120WATT TECs I want to use to cool with, and after looking around a bit I was wondering if the following setup would work, and if anyone else has tried successfully using a pryamid type stack. I think that the two 120's would be able to dissipate both the CPU and the other 120, but I haven't done the math yet, and since the 120 is only touching 1/2 of each of the other 120's I'm a little skeptical. I'll try it anyways, with just a test block, but I just wanted to check and see if anyone had already tried it.

I tried a pyramid with 3 potted 80watt TECs and it didn't work as good as just 2 80watts TECs next to each other. This was also using -10C subzero water cooling on the hot side. This was with a Celeron 300a quite some time ago, so even one 80w TEC was plenty.

The way I had it set up was 2 TECs side by side with a copper plate inbetween them and the underlying single TEC and another copper plate under it (on top of the CPU).

I don't know if the AMOUNT of heat made the pyramid worse or if the DISTANCE the heat had to travel through the pyramid was the problem.

arken420 · 10-22-2003, 04:39 PM

The resistance of all the copper in the setup shouldn't be much more than using your tipical(sp?) WB/TEC setup, I'll only be adding a 1/4in block between the TEC's to provide a good distrabution of heat from the single TEC on the bottom. I also plan on testing it quite a bit once I get everything setup and running, but like I said that could take a while. If you guys are interested in what steps I've taken, and will have to take, to turn a cheap Ryobi 10in Drill Press into a 5-axis cnc setup, I will be more than happy to add that to this thread. I've got a camera and could do a little step-by-step guide, I guess. I haven't spent that much on parts and materials yet, and don't plan to.

Ryobi 10in Drill-Press: 99$
4x17 std Stepper Motors: 160$
Steel stock: 20$

The rest of my money has been spent on pegboard for my driver curcuits and interfaces, wiring, and screws and other mounting hardware. I haven't gotten far with getting the motors and tracks setup, I'm still planning, learning and putzing around.

Laterz

10-20-2003, 07:04 PM	#3
8-Ball Cooling Savant Join Date: Feb 2002 Location: Oxford University, UK Posts: 452	With regards to there being an overlap between the TEC on it's own and the the two TEC's above, I would have thought it wise to use an copper coldplate between the two layers, with the whole assembly insulated from the outside with neoprene foam. 8-ball __________________ For those who believe that water needs to travel slowly through the radiator for optimum performance, read the following thread. READ ALL OF THIS!!!!

10-20-2003, 05:20 PM	#2
Les Cooling Savant Join Date: Oct 2001 Location: Wigan UK Posts: 929	Ji Kuang (aka LardArse and Miss_Man) was last seen with a similar set up , 2x172w,1x65, 1x80, http://forums.procooling.com/vbb/sho...?threadid=3293 Search of this forum (Miss_Man) and both OC's and OC(AU) under LardArse will produce some good TEC work

10-22-2003, 04:39 PM	#6
arken420 Cooling Neophyte Join Date: Oct 2003 Location: Kailua, HI Posts: 31	The resistance of all the copper in the setup shouldn't be much more than using your tipical(sp?) WB/TEC setup, I'll only be adding a 1/4in block between the TEC's to provide a good distrabution of heat from the single TEC on the bottom. I also plan on testing it quite a bit once I get everything setup and running, but like I said that could take a while. If you guys are interested in what steps I've taken, and will have to take, to turn a cheap Ryobi 10in Drill Press into a 5-axis cnc setup, I will be more than happy to add that to this thread. I've got a camera and could do a little step-by-step guide, I guess. I haven't spent that much on parts and materials yet, and don't plan to. Ryobi 10in Drill-Press: 99$ 4x17 std Stepper Motors: 160$ Steel stock: 20$ The rest of my money has been spent on pegboard for my driver curcuits and interfaces, wiring, and screws and other mounting hardware. I haven't gotten far with getting the motors and tracks setup, I'm still planning, learning and putzing around. Laterz

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