Les,
I was treating this as a simulation of a hypothetical version of
one of these new devices. According to the document, one of these devices can pump 700 Watts through 1 cm^2. Thus the use of four 172 Watt TEC's (688 Watts) to simulate the electronic aspects of a die sized version of one of these.
The document said the prototype was, "about the size of a large postage stamp". I'm presuming that one could be manufactured with the dimensions of a CPU die.
Edit: Nope, I was wrong, you are right. The numbers don't make sense unless the kryotherm software divides the C/W by four for the four TEC's.
Redoing the simulation with operating voltage of 5V and hotside C/W of 0.88, and Coldside C/W of 0.4 yields:
Tob = 39.5 C
W = 42
Qh = 124.5
(I'm at work without graphic tools so I can't show the pictures.)
Optimal cooling is at around 7V but 7V only gains 1C over 5V.
Fairly pointless to use a design like this. The waterblock is too much of a bottleneck. Power consumption is not the big issue though.
Unless the predicted 2-3 gain in efficiency can be achieved these don't appear so useful.
Maybe combined with cheap diamond heatspreaders and methanol phase change...
