Wind Powered Evaporation Device: BMHQ Volunteer Day

jofezasa · Post by **jofezasa** » Sun Jun 15, 2008 2:15 pm

At the BMHQ volunteer day there was an example of a wind powered evap device, a vertical cylinder supporting a double helix of two tubes at an angle, the tubes just dipping into the eva pool. As the double helix spun in the wind (they used a fan to demo), it carried water to the top of the cylinder. The cylinder had chicken wire and/or fabric (I think) to retain the water as it trickled down and in theory evaporated more efficient.

It was cool and I would like to build one and don't recall it well enough to just do it.

Anyone familiar with it that has some pointers or plans?

capjbadger · Post by **capjbadger** » Sun Jun 15, 2008 2:54 pm

I know exactly what you are talking about.

I've bumped the topic about the evaporator for you.

The water feed bit is just a modified Archimedean Screw built with tubes so that it will pull water up no matter which way the wind blows.

Badger

capjbadger · Post by **capjbadger** » Sun Jun 15, 2008 3:00 pm

Modern style archimedes screw.

Badger

capjbadger · Post by **capjbadger** » Sun Jun 15, 2008 3:19 pm

I take it back. It's technically called a "Coil Pump".

Badger

gyre · Post by **gyre** » Sun Jun 15, 2008 10:35 pm

Windcatchers
http://en.wikipedia.org/wiki/Windcatcher
http://www.air-conditioner-home.com/blo ... ative.html
http://www.windcatcher.com/

Stack Effect, the most cost effective form of solar power, useful for cooling attics and sometimes houses
http://en.wikipedia.org/wiki/Stack_effect
http://en.wikipedia.org/wiki/Solar_chimney
http://en.wikipedia.org/wiki/Natural_ventilation
An unusual windmill design
http://www.windcatcherwindmills.com/