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Unread 02-27-2005, 08:49 PM   #15
Since87
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Join Date: Sep 2002
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Quote:
Originally Posted by Cathar
Hmmm, my experience with both Kryotherm, as well as actual playing around, seems to suggest that the hot-cold side delta of a TEC is somewhat proportional to Vin/Vmax * dTmax, even when given near perfect insulation and thermal transfer efficiency (99.99 Rins and 0.001 for Rh and Rc).
Hmm, the attached Kryotherm screen shows > 72% of dTmax at 50% of Vmax.

However, you are right, as voltage goes down, both Qmax@v and dTmax@v go down, and at low voltages you have to accept either modest dT's or a very large ratio between the total Qmax of the TEC(s) and the actual heatload.
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