Oh dear.
This is a terrible setup.
First of all, by sharing the one power supply, I assume this means the TEC are in series, the wattage is not halved, it is reduced by a factor of 4. This is Ohms law. You/they have halved the voltage across each TEC thus halving the current through them. P=IV, so W is a 1/2 of a 1/2 => 1/4*W (or P=I^2R.
Quote:
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Originally Posted by Metzen
Is the Peltiers attached to the giant heatsink+fan a ineffiecent way of transferring heat?
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Yes it is highly inefficient. There have been numerous attempts to cool water using this method, it basically does not work unless done extremely thoroughly. This setup is not thorough, more of a gimmick. IMHO.
Good move doing a side by side test.
More later.
Cheers
Incoherent