Quote:
|
Originally Posted by 8-Ball
I was under the impression that dTmax could only be achieved when Q=0, and as soon as Q>0 then dT<dTmax.
This is why you want as big a TEC as possible, as the smaller Q relative to Qmax, then the closer dT is to dTmax.
8-ball
|
Yes, you are 100% right m8
I was talking about a single thermocouple and you are reffering to a module as a whole. With Q=zero dT of single thermocouple is the same as dT specified for the whole module. With dT=zero for single t/couple Q capacity of it is going to be 1/100th that of the module as a whole (I am using imagionary t/couples count of 100 in our imaginary module
). With thin 'cold plate' t/couples outside thermal energy propagation sphere will have little to no use therefore decreasing cooling power of thin 'cold plate' solution (only fraction of t/couples will be in use decreasing Qmax available but maintaining dTmax as specified for the whole module @ Q=zero).
Sb here linked to Slovakian site with quite nice thermal sim renderings for various thicknesses of cold plates and resulting temps.