Thermoelectric Cooling

[J57ltr]

Brian,

On the efficiency 2 numbers pop into my head 30% and 65%, I'll look it up I have the notes, I think here at work.

You really need a large heatsink on the "hot" side (if you reverse polarity the change sides), they are capable of 70F temperature differentials so the colder you can keep the hot side the colder it gets on the cold side.

Think of this if the air temp is 100F and you can keep the hot side at 135F then you can only get the cold side to 65F. I used large fans or water cooling for my large projects. One thing you have to deal with on electronic applications is condensation. I shorted out a few devices (was able to fix them but that is another story), just because of that. They are really cool I have a dual probe digital temp (K-type) that I tracked temps with. It’s really neat to see the condensation form and then all of a sudden it starts turning to ice all across the plate.

Jeff