There seems to be a lower size limit for conventional, compressor-based refrigeration. The result is that portable cooling devices are always simple fans, or at best, evaporative cooling units. What prevents conventional refrigeration and air conditioning from working at sizes much smaller than a dorm refrigerator?
In: Technology
Cooling cycles don’t generate cold. They simply move away heat, and thusly they need a hot side.
Which means for these things to have any effect at all you need to be able to place the hotside outside of the room/system that you want to cool. If the entire device has a small form factor this wouldn’t really be possible
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