[Stoves] The Akha TLUD - Biochar Project in Bangladesh.

Paul Anderson psanders at ilstu.edu
Wed Mar 8 07:29:13 CST 2017


Michael, Julien and all,

On 3/8/2017 12:09 AM, Michael N Trevor wrote:
"Sounds like they need to follow up on Richard Stanleys briquettes from 
biomass   Legacy Foundation"

I like Richard's (and others) briquettes and methods, but not for this 
Bangaldesh effort.

I disagree about the appropriateness of low density biomass briquettes 
in the Akha TLUD.  The fuel chamber of the Akha (and many TLUDs that use 
woody fuels) is rather small for the low density briquettes, resulting 
in_quite short_ operational times for the pyrolysis in those TLUDs.

With fewer than 100 Akha units made and in operation, this would not be 
a good time for Mahbubul to start work on TWO new efforts:  a larger 
Akha stove and making low density briquettes.

About making high density pellets / pucks, that would be ONE new effort, 
and that also would divert their efforts from their two objectives, 
which are the biochar for agriculture and the current-size of Akha TLUD 
that is finding acceptance.

Everyone should note that the Akha TLUD is already blazing new trails on 
two issues which are both quite important and will benefit from more 
usage and analysis:

1.  Significant parts of the Akha are made of "non-metal" materials 
(whether clay ceramic or cement mixes or someday something else). Awesome!!

2.  The "fixed position" Akha is not easily moved.  So the removal of 
the char at the end of pyrolysis is via a trap door of metal. Wonderful!!!

Therfore, my recommendation is to bear the extra expense of purchasing 
the more expensive wood fuel throughout the whole year. Put the efforts 
into the known fuel, such as fuel drying in the rainy season and 
encouraging the growing of woody fuel crops, especially bamboo, a known 
excellent TLUD fuel.

Speaking financially, it should (I expect) be easier to get some 
donations from biochar enthusiasts and others for the work with woody 
fuels than it would be to get funding for pelletizer equipment (and 
skilled operators and energy supply, etc) or for making a new size Akha 
TLUD or for equipment and time for having a low density briquette 
operation that would be focused on solving a half-year problem (fuel 
supply for 6 months).

Let me make the above into a suggestion that people might want to 
consider some donations to the Akha TLUD stove efforts in Bangladesh.   
If so, you should write directly to Dr. Julien Winter      
winter.julien at gmail.com   who is in Canada.    (He did NOT ask me to 
make this suggestion.)

Note:  This current email message will be at the   EPosts   section of 
my website   www.drtlud.com   where you can also see the two-page 
document about the Akha TLUD stove and biochar efforts at: 
http://www.drtlud.com/?resource=prt17200

[[[ The EPosts section is for my selection of BOTH biochar and TLUD 
messages that are easily accessible for those who do not subscribe to 
the Stoves or Biochar listservs.   EPosts are sort of my one-way "blog," 
with no comments from readers.   All comments are to the listservs or to 
me directly. ]]]

Paul

Doc  /  Dr TLUD  /  Prof. Paul S. Anderson, PhD
Email:  psanders at ilstu.edu
Skype:   paultlud    Phone: +1-309-452-7072
Website:  www.drtlud.com

On 3/8/2017 12:09 AM, Michael N Trevor wrote:
> Sounds like they need to follow up on Richard Stanleys briquettes from 
> biomass   Legacy Foundation
>
> On Tue, Mar 7, 2017 at 4:41 PM, Julien Winter <winter.julien at gmail.com 
> <mailto:winter.julien at gmail.com>> wrote:
>
>     Hi all;
>
>     Thanks to Ron for some great suggestions a couple of emails back.
>
>     It will be worth getting the Biochar User Groups to experiment
>     with making cakes from wet leaves, and Crispin's suggestion for
>     co-combusting leaves and wood.
>
>     Making leaf cakes would be an improvement for their traditional
>     stoves as well.
>
>     It is great to get suggestions from all over the World.  Ideas
>     don't fall out of the sky as inspirations without a causal
>     history.  If new ideas were so easy to get, humanity would not
>     have spent 100,000 years throwing stones at hairy elephants.
>     Nobody could say, "I have an idea: a gun.  Let's just shoot the
>     bugger."
>
>     Cheers,
>     Julien.
>
>     -- 
>     Julien Winter
>     Cobourg, ON, CANADA
>
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