Paul and Colleagues,
Quite awesome and the smelting pot demonstrates how much high
temperature can be created. Some version of this would I think be
adequate for Rolf's first proof of concept trial, better than using his
gasifier. How big have you made one without compromising the key parameters?
Our colleagues are responding to the wake up call, and when a few $$ are
available, the ceramic project will be able to draw from the best
people and technologies in the business. In the mean time, we can all
contribute to assembling Rolf's projects needs, and I hope others will
join in and help make it happen.
Doug.
On 06/01/17 15:40, Paul Anderson wrote:
Doug,
The AVUD method is ignited at the level of the "grate" (actually a
pipe with holes on side and bottom, so the char can pass around the
pipe, drop below the hot zone, and be extracted at regular
intervals). The heat rises and pyrolyzes the biomass above, and
additional fuel is added regularly on top of the fuel pile. That
makes it a continuous process. No need to stop.
The tarry gases exit and are combusted with turbulent air, coming from
an air compressor. The combustion is quite complete and clean. This
has similarities to the Dasifier made by Agua Das almost 20
years ago. You should read these materials at my website:
http://www.drtlud.com/?s=dasifier that link leads to
http://www.drtlud.com/wp-content/uploads/2015/01/Dasifier-Foundry-Gasifier.pdf
and see a 2012 video with Das himself melting metal with woodgas at:
https://www.youtube.com/watch?v=t08tj4NWUQY
Many years ago Das was one of my teachers and mentors, and a good
friend of Tom Reed.
Paul
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