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== Design ==
There is very little experimental research that has been done on the construction and
optimisation of these devices. Most of Tanakas designs he never built fully functional prototypes, just tested 1 effect and theorized the rest of the work. While the team at Taiwan univesity did build their prototypes, they were all hooked up to evacuated tube collectors that could supply a steady stream of 100 degree heat to the device. This coupling adds so much cost that in my eyes moves the device out of appropriate technology.
The inspiration for my design came from the Tanaka's paper from 2005 <ref>http://www.lenntech.com/abstracts/1421/a-simple-and-highly-productive-solar-still-a-vertical-multiple-effect-diffusion-type.html</ref> where in he describes a multi effect diffuser that is coupled to a flat plate collector. I was very attracted to this idea because of its integration of the solar collector and the condenser. So from that point to move forward I used 3d CAD tools to flesh out the various systems and went about building my first prototype.
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