mind if i ... nope, i need a __name__ for the wikipage first ... but it does look easy to wikify, and we're just about to end yet another heatwave here, and i do have a solar panel
also, if someone does a model and takes a picture, off we'd go! lucas 2012/7/24 Vinay Gupta <[email protected]>: > > > http://web.archive.org/web/20031012091914/http://mindismoving.org/hexayurt/hexayurt_gallery/hexayurt_gallery.html > > The very first ever built. You can just about see the solar powered swamp > cooler. It used a different design from the current models, I dunno if it's > better or worse, but let me try and describe it. > > The Electrical Part > ===== > 12v output solar panel connected directly to a computer case fan. All very > basic, no batteries. > > The Water and Air Part > ===== > The container was a large plastic tub from Wal-Mart. High up in one side I > cut a hole for the case fan, and mounted it sucking air out of the box. In > the other end I cut another hole, as large as I could manage while still > leaving a six inch "bathtub" in the floor. > > In the sides, I drilled a series of tiny holes with an awl. Each hole held a > twister paperclip. The paperclips were stuck through hanging washcloths, > literally rags like you can buy in big bags in the car section of hardware > stores. The rags were arranged in a zig-zag pattern like so: > > |-------- | > | --------| > |-------- | > | --------| > |-------- | > | --------| > |-------- | > | --------| > > Here's the clever bit. To stop air going up over the top of the baffles, a > sheet of plastic (from a strong garbage bag) was placed on top of the box > before the lid was closed. The suction of the fan pulled it down tight on > top of the baffles, and that kept the entire thing sealed effectively enough > to hold the airflow. > > Just fill with a few gallons of water and turn on. The rags soaked up the > water and produced a long, long, long airflow path through the box, with > roughly laminar airflow (it's convoluted, but with large turning radiuses at > the corners.) Off a 10w panel, the 6' hexayurt would get good-and-cold but > the best application was as a refrigerator. We'd just put cans in the water > and they'd get chilled. It was heaven. Important to insulate the base > otherwise your precious cold goes straight into the ground. Air intake was > recirculating air from the hexayurt, rather than outside air, I'm still not > sure which approach is best for that. > > I never documented the design properly - we didn't get pictures, it was the > early days! - sorry, that might have been useful at some point. It was > pretty easy and pretty forgiving, and as cheap as cheap can be. > > Enjoy, > > Vinay > > -- > You received this message because you are subscribed to the Google Groups > "hexayurt" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/hexayurt?hl=en. > -- You received this message because you are subscribed to the Google Groups "hexayurt" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/hexayurt?hl=en.
