Posted By
MMS
on 2019-06-18
12:15:27
 |  Re: how lowering temperature for TED CPU chips
Thank for the hints.
Peltier is a good solution to reduce temp below room temp. Maybe one of the few ones. It has requirements.
The problem is, that Peltier's efficiency is very low. So you need a rather big cooling (and PSU) capacity to cool down the "hot side" of the Peltier to get cooling effect on the other side. If your cooling is not efficient on the hot side, then the cool side become even hotter (than without peltier).
We use 20 pcs on our 10 prodution lines with 120mm fans each to keep a soldering tube cool. Every 2-3 weeks one gives up, due to inefficient cooling (dust and high temp next to prod.lines). We need active overcurrent protection otherwise it would melt all parts around. We currently runa project to add a higher capacity and more efficient water cooling on the hot side to extend the lifetime of the peltiers (and to reduce downtime on production lines)
https://forum.openag.media.mit.edu/t/water-nutrient-cooling-with-peltier-elements-fail/855
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