Just looked at those graphs, quite interesting. Its a shame none of the models they have match the ones I'm using.

What I'm interested in, is the massive spike in COP at around 1/8 of Imax. Though there's a huge disadvantage of running any lower than this magic point.

Also, at this point you'd only be pumping around 10w per element (on the type of element I'm looking at) so perhaps a slightly higher current is better in that respect (though still at the peak).


For the closest element to mine, for 20w movement at dT of 10c it will require 7w of power. This is a COP of 2.85 with a hot side of around 33c with cheap air cooling.

As I have 10 peltier modules, I'm looking at cooling 200w load with 70w power to ambient (of course this is best case, there are all the thermal interfaces etc). This seems to match nicely to my previous calculations and real world tests.