Peltiers

Neo-revo · November 18, 2018

well i like doing things and stuff. This one time i made my old un-used coolermaster 690 into a herb box. (actual herd for cooking.... although green thumbs be thumbin it up)

and then i read about peltiers again for the third time and finally started having some fun.

Mind you i know just how wasteful they are, But look at my rig... i dont really care that much LuL.

So so i got a pair of 12710's and 7308's(funny story but i digress) and tons of copper.. llike 5-6 kilos of assorted heatsinkable copper.. yea.. thats only the heatsink copper LOL

and i just snagged a deal that is giving me another 30a switching psu, and 6 more peltiers that add up to 360w or probably 12706's

For those who dont know a peltiers name is very informative. 127-(p/n couplings in plate) 10(amps resistance) at 12v = "120 watt peltier" Often listed as 154W since the max operating voltage is 15.4V.

But this doesn't mean it cools off 120W's either, you have to dig for/find these operating graphs that show the temp differential possible if you run currents and voltages through these. (best eff around 11.5V)

Blahblahblah, (still need to take into consideration of thermal mass of object cooled: weight of fluid/blocks/tubes/everything the fluid touches) and then also figure out the TDP input so you can figure out what temp you need fluid to be at to get the results you want.

when i messed with copper ram stacks and northbridge coolers on the cold side the results i got were interesting but obv skewed

Spoiler

i did a test run to see what a 12710 could do to a UN-insulated no input closed loop

Spoiler

I got 25C fluid to ambient (21) in 3-4 minutes) and then took an hour or 2 at pump speed 1(2 raised temps) i got fluid to hold at 13.7C (but was jsut at the dew point and i think i was max diff since un insulated all the cold tubes pump res/things were acting like their own radiator.

This was all just a test to see what sort of diff i could expect and if i would need glycol/etc.

now i will have lots of amps, and lots of plates to Gerry-rig a fabulous mess together and mess about some more.