I know there are numerous threads here about various fog chiller designs, but I don't know that there are any discussing "powering" these things. I've never liked one aspect of the vortex chiller - that there is seemingly A LOT of fog just hanging out in there after a pulse, and it just dribbles out. On a whim I added a small pc fan powered by a wall wart to the intake tube within the cooler and the results are kind of amazing. I need to do a little better job of securing it but I just used two screws and a wire for experimenting purposes. Pic below of how I did it and a quick pic I snapped the other night. The chiller had four of those frozen water bottles in it that night - not just one.
Thanks I didn't find the right solution from the Internet.