Quote:
Originally Posted by pmrid
Brent, I'm sorry if this seems a bit pedantic but with peltiers, the process of cooling (as I understand it) is not to absorb the heat from inside the enclosure and direct it out the back. The idea, as I understand it, is that the bottom side of the peltier device gets cold and the trick is to push that cold into the enclosure via a heat sink/fan on that side. A very different process. And since the peltier produces more heat energy than cold as part of that process (because of the power/enegry used), there is more heat to be blown away by the external fan. So the internal fan, heatsink etc is always smaller in proportion to the out(hot)side one.
So my idea is to generate as much cold air as I can from the peltier and the heat sink in contact with its cold side and push that via the internal heat sink and fan onto the back of the camera.
I hope I don't have this concept wrong.
Peter
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Moving heat from the hot side is the key to getting more cooling on the inside, which has worked very well based on his graph. A 20C reduction is quite impressive. I hope that I have not added to the confusion. Is it fair to say that the foil increases the area of cooling medium without adding a lot of mass to the design? Which makes sense.
Peter, where did you measure the temperature inside the box?
Direct cooling avoids the air medium, but has its own issues.