Originally Posted by
JerryBurks
Actually I tried compressed air but found it takes about 60-70 psi to squeeze enough air through the tiny water passages to keep it cool. Water has 4000 times the volumetric heat capacity of air, after all. So an aquarium air pump is out of the question. On the other hand, shop air pressure is also not a real solution because it will waste a lot of energy for the compression/expansion cycle. If air cooling at all it has to be high velocity/high volume along a larger surface.
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