So.... in my quest for a cooler dome structure I've given much thought into installing some sort of evaporative cooling system that doesn't require electric power or, if need be, solar power. I'm certain others have taken the engineering plunge around here and I'm wondering what has worked for you.
The good thing is that I don't have to cool a large area. My dome is only 15 ft in diameter (5/8 version) so its like less than 450sq feet of air space to cool. I have a full aluminet outer covering and (pending) an inner Temptrol lining so I have a nice insulating layer and great radiant heat barrier. Potentially, I could get the inside around 70 degrees during the hottest part of the day and keep it pretty stable.
In my mind I'm thinking of ways to harness the winds to run a pump and fan in a swamp cooler. The alternative is to run them off solar panels but those are expensive. I haven't figured out how many watts I'd need to run a 12v fan/pump continuously either. I've seen examples of ice chests being modified to run as A/C units but it seems like I'd be running to get Ice all the time. This is why I think the swamp cooler idea would be perfect for Burning Man structures. There is like 5% humidity out there at any given time (If any). Perfect for evap coolers.
If anyone has ideas or input or a DIY plan for playa powered dome coolers, please enlighten me. I'll be working this out myself as well. If I get something that I think works I'll definitely share it, possibly build a couple if there's a demand. And who knows, maybe I'll be able to invite you in for a frosty beverage?
Aren't playa projects fun?