Dear Ed,
I also would like the drawings and photos. And even better for
everyone, please send those items to Erin Rasmussen who can put the
items on the Internet at the stoves website and at the biochar website.
I think your listed reasons for having a Rocket inside instead of the
standard Anila simple burning area are excellent.
I have a few questions:
1. to empty out the biochar, do you have a clean way that can be done
inside the home? Or is it still best to take something (describe what
it is) to an appropriate area?
2. And can you do (or envision doing) an arrangement for "reloading"
the Anila part of the stove? That is, exchanging some container of
biochar for a container with biomass to be pyrolyzed? And has anyone
done this? The closest I know of something like this is the people who
put containers of biomass (including outlets for the gases) directly
into fireplaces or campfires. Those containers can be continually
reused as long as the exterior fire is burning.
3. Do you have a way to cut off the air to the Rocket sector when the
pyrolysis of the retort (Anila) is supplying plenty of gases to be
burned? This would seem to be a logical capability to have.
4. Your system is for home heat and hot water also. Please describe
that for us. (and in what climate zone do you live?)
5. I hope that the "mainly discouraging responses" did not come from
TLUD advocates. What you are proposing could be done ABOVE a TLUD as
the initial source of heat (but not with the retort around the TLUD
reactor because it is only hot at the top at the beginning, and the
retort needs heat on its full length right away.)
6. IMAGINE 3 or more enclosed Anila-style crescent-shaped (removable)
retort chambers that form a central "chimney" (actually it is a
riser). Get it started with heat from a Rocket or TLUD or simple fire
and use the off-gases to continue the pyrolysis. BUT have the 3 or
more chamber at different stages of the retort process: drying out the
fuel (up to about 120 C), torification up to about 300 C, pyrolysis up
as high as the retort can be operated. I am suggesting that the
combustion of the off-gases from ONE of the chambers might be sufficient
to take the other two to higher temperatures. And then when the first
one has completed its pyrolysis, empty it and put it (or another one) in
its place, keeping the sequence going on and on and on. One advantage
is that the overlapping time periods of the retorts result in continual
fire with "batch-length" time periods for attention instead of the
frequency of attending to the fuel in Rocket stoves. If anyone
tries this, please inform us, even if the results are not very good.
Keep up the good work. It is experimenters like you who are reporting
new capabilities.
Paul
Doc / Dr TLUD / Prof. Paul S. Anderson, PhD
Email: [email protected]
Skype: paultlud Phone: +1-309-452-7072
Website: www.drtlud.com
On Oct 25, 2013, at 12:15 PM, Edward Revill wrote:
Hi Trent,
Yes I have built stoves with the retort around the combustion area of
a rocket type stove. These stoves can be seen as just another
variation of anila stoves but in practice they are a vast improvement;
1, they burn more cleanly than standard anila stoves because you can
control the amount of air entering the combustion zone,
2, being front lit (rather than top lit) it is easy to add hoppers so
these stoves can be brought indoors under a flue pipe as they do not
need to be moved to fill, light or empty the biochar.
3, you can continue to burn them as rocket stoves once a batch of char
has been made
4, in my experience it is much more efficient to produce biochar with
combustion inside rather than surrounding the retort.
5, combustion inside rather than surrounding the r capture.
I run a small market garden and for over 3 years I have produced a
steady stream of biochar (around 5kg a day in the winter months) from
these stoves.
I have no domestic energy bills for heat, hot water or cooking. Other
people waste the heat they generate by producing biochar.
For some reason I have received mainly discouraging responses from the
'experts' in biochar stove fields. (See the discussion of 'biochar
rocket stoves' in the yahoo groups stoves list.) I often find that
'experts' have a reputation to maintain but to dismiss a good stove
design is their loss.
I strongly urge you to go ahead and make one regardless of other
peoples views, if you want to bring a biochar stove indoors under
heaters and a flue outlet without issues around emptying and quenching
the biochar and with no indoor CO or PAH I have never seen anything
else that is as well suited.
If you want drawings and pictures then please email me,
Best wishes, Ed.
------------------------------------------------------------------------
*
Has anyone worked with concept of building a char chamber around the
flue of a rocket stove, heating inside out vs outside in? Building a
rocket stove for the shop, trying to double dip.
Sent from my iPhone
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