[Stoves] Natural draft TLUD turn-down

[Roberto Poehlmann]

Kirk,
this is a very interesting document, thanks to share it.

The method 2 is like the 12 holes configuration of the Peko Pe design in
page 9 of the following document:

http://www.adansonia-consulting.ch/document/Grass%20Cooker%20handbook_print.pdf?PHPSESSID=3d064accc3efbdafd3b1133a13129f9a

Maybe this is the reason that the Peko Pe stove don't need an internal
chimney to operate. This 12 holes function also like 12 pilot flames,
maintaining the secondary flame hot.

I have replicated this design of the Peko Pe, and in operation, you can see
the pilot flames attached to the 12 holes.

Maybe the 4 holes concept in the middle of the combustion chamber can also
helps to maintain a slow power consumption. When the pyrolysis front reach
the middle of the combustion chamber, this "primary air" start to combust
the charcoal, adding heat to also support the flame.

Roberto Poehlmann
Valdivia Chile.


"
All,

Dr. Ron Larson, Dr. Paul Anderson and I have been working on the problem of
lack of turn-down in natural draft TLUD cook stoves.  We have found
considerable success.  Attached is a document introducing the results of
our labors.  All information is in the public domain.

K Harris
Santa Rosa, CA. USA

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