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226W Pelt - Custom DD Kit problems

M

mwarps

Supreme [H]ardness
Joined
Oct 6, 2002
Messages
7,072
Greetings Peltier Lovers (and haters!)


Setup:
226W Peltier on a Meanwell S320/12 supply, backed up by Eheim 1250, Maze3-1, Z-Chip, 1/2 ID Tygon, Dual 5.25 Bay Res, two Panaflo M1A 120mms at full speed.
Cooling a 2100+ @ 2.2GHz, 1.925V

Without the Pelt the system idles around 27C in a 19C room.

With the pelt, I'm getting idle temps of 35-40C

Notes:
The pelt *is* properly oriented.
The temps reported are actually accurate.
The wires attached stock to the pelt, which I think are Way-the-fuck-too-thin (tm) are warmish-hot.

Without a load, the pelt is cold to the touch. No condensation, but coldish, I'd say around 5-10C, and the block/setup does get noticeably warmer.

Questions:
Is the voltage drop across the shitty stock lines causing my poor performance?

Any ideas?
 
Sounds like your setup can't cool the pelt because you don't even get frost as I understood. With 226W you should get -35° C without load.
Did you put thermal paste on both sides of the pelt? Check if water can flow freely through your loop.

The cables of the pelt shouldn't feel warm, it's too much resistence. Resolder everything putting bigger cables.

Measure your power supply's output using volt/amp meter.

As you see there a millions things to check...

Good Luck!
 
Originally posted by __caligula2
Sounds like your setup can't cool the pelt because you don't even get frost as I understood. With 226W you should get -35° C without load.
Did you put thermal paste on both sides of the pelt? Check if water can flow freely through your loop.

The cables of the pelt shouldn't feel warm, it's too much resistence. Resolder everything putting bigger cables.

Measure your power supply's output using volt/amp meter.

As you see there a millions things to check...

Good Luck!
Click to expand...

The setup moves an incredible amount of water, so that isn't the problem. The problem is with the pelt itself. I'll see what I can do with resoldering and such.
 
Originally posted by mwarps
The setup moves an incredible amount of water, so that isn't the problem. The problem is with the pelt itself. I'll see what I can do with resoldering and such.
Click to expand...

If the wires were that resistive they would have burne dup by now. Check the power supply first. With the peltier running, check the voltage across it and the current thgouh it if you have an inductive ammeter.
 
Originally posted by SonicTron
I imagine you are running a 24v peltier?
Click to expand...

It's a 15.2V pelt. The 226W one which DD sells on the site.
 
I agree with zer0signal667. If the loop is no problem, then the ps could be it. Check with volt and amp meter. You should at least get half a centimeter of frost on that stuff without load!

If that doesn't cut it, resolder the wires untill inside the pelt how I did it. You'll have to scrape the potting away on the corners and resolder them on the bare elements inside.
 
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