Dear Ronal and Prof. Nurhuda,
I too await the answers to Ron's questions. And add a comment about
what Ron wrote:
you appear to be pre-heating both primary and secondary air - can you
attribute any performance improvement to that? (I know of no-one else
doing both)
I cannot think of anyone preheating primary air in a TLUD to any
significant degree. That is because there is no serious heat in the
lower areas of TLUDs until the pyrolysis front makes it at least half
way down the column of fuel. And then the heat is by conduction through
the metal sidewalls.
Looking at the video by Nurhuda, I do not detect any effort to pre-heat
the primary air. He can clarify that for us. What is important is
the quality of the control of the amount of primary air that can
enter. VERY WELL DONE. His stove should be a case study of
industrial manufacturing of natural draft TLUDs.
I request from Prof. Nurhuda as much additional information as
possible. The more that everyone and the GACC knows about the
Indonesia TLUD success story, the more opportunities there will be for
the further scaling up to serve people in Indonesia and elsewhere.
Paul
Paul S. Anderson, PhD aka "Dr TLUD"
Email: [email protected] Skype: paultlud Phone: +1-309-452-7072
Website: www.drtlud.com
On 11/3/2012 11:47 AM, [email protected] wrote:
Prof. Nurhuda
This is a really fine looking stove. The part that intrigues me
most is that you are controlling secondary air for the pyrolysis
gases. And apparently doing it (and primary air) well with the
rotating disc mechanism. I do not recall seeing any other stove
controlling both (without a fan) - so any data on the value of that
for users of the stove could be very helpful to others. (Can they
control excess air by the look of the flame?)
A few questions:
the price?
sales going well?
what percentage char by weight?
any soil improvement results from using the biochar?
can you do more than a 4:3 turndown ratio? (based on your two
stated power levels)
apparently you are striving for biochar (great!), but can you
describe conditions if you try to burn the produced char?
any efficiency data?
you appear to be pre-heating both primary and secondary air - can
you attribute any performance improvement to that? (I know of no-one
else doing both)
Thanks for the alert on your stove.
Ron
------------------------------------------------------------------------
*From: *[email protected]
*To: *[email protected]
*Sent: *Saturday, November 3, 2012 5:03:54 PM
*Subject: *[Stoves] Smoke-free biomass pellet fueled stove
Dear all,
Please check to following page to see the video of our smoke-free,
biomass-pellet fueled stove:
http://www.youtube.com/watch?v=uWt25oD1iWk&feature=youtu.be
Kind regards
M. Nurhuda
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