Very good paper with some novel adaptions of the test methods, approaches to the community and the retrofitted device.
The money photo is this one: The pot rests are far too tall and create several simultaneous problems for effective heat transfer. The addition of turbulators <http://en.wikipedia.org/wiki/Turbulator> is one way to address some of this error. Given the reported power level the pot rests should be about 12-15m high and that would reduce the initial problem. It would be interesting to see a stove built with both changes. Regards Crispin +++++++++++ List: 1, I recommend this recent new (free) technical stove paper: http://www.energsustainsoc.com/content/pdf/2192-0567-3-16.pdf
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