i based the design on solar air conditioners that have existed over the world in one form or another for thousands of years. some tubes are built, back in them thar days with mud or wood, one painted white, one black, the bottoms open into the living area of the house. the sun would heat the black tube, the white tube would refuse to get heated.

the fundamental is that the black tube would pull the hot moist air up from the living space, the air from the top of the white tube cool and dry would be pulled down. a single tube cooler would be less effective but would still work.

The blue is a funnel to keep rain out. In my little rehash design i thought it would be best if the tubes were small and efficient, so i included clear tube on the outside of the black to keep wind from stopping the process, the builder should keep the tube length reasonable, 1' for each cubic foot. in the event that a second tube is added it should be just another clear tube on the other side with a white tube inside, perhaps the ends 10' from each other using flexible vacuum cleaner hose to connect the two, divided in the centre by the area needing to be cooled.

How about a house? making it look good and still be effective is the primary goal. Mounting them as architectural features for example. A separate option is to bury the linking pipes and run them to a location out of view of the general public, but larger pipe would be needed to limit the pressure loss. The design for the tubes as full size house ac has to be slightly different, instead of tubes hung by a piece of coat hanger (the brown thing in the picture above)they must be free standing or attached to the side of the house.

The easiest construction method is to use 1x1 spruce as a frame, simple butt joints. put thick plastic on the inside, it needs to be thick to hold the heat at the beginning of the daily cycle, don't put it on the back. Put lexan on the outside, the back side should be heavy stock, maybe even 3/4" plywood. If dark clear sheet plastic could be obtained the builder could make concentric frames that have heat building layers, then there is less empty space.

If you live where the back of your house faces south you can use another option, clad the side of your house in 1/4" ply, paint it black on about 50% of it, white on the other. Put 1x1 board from the bottom to the top spaced at 12-16", put a piece of drip edge on the top to keep rain from getting in, then cover the whole thing with lexan. Get 2" pipe, flatten the end with that goes to the panel with gentle heat, put pieces of 1x1 in the bottom so the flattened pipe will fit between the ends, right in the middle. If you have a deck, watch beetlejuice, it's a movie not a drink that moves, the house has a deck added and the wall at the end of it, just sitting there, could be a good addition for yours. You could put these panels on there and not destroy the appearance of your house.