[Stoves] Re: The Akha TLUD – Biochar Project in Bangladesh.


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@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@ilstu.edu  Skype:   paultlud    Phone: +1-309-452-7072  Website:  www.drtlud.com
On 3/8/2017 12:09 AM, Michael N Trevor wrote:

CAMNT9vEQxBJzJ3=E-rJk-iDWDis0uNd8WFdK8AYjbp=vedTUZg@mail.gmail.com” type=”cite”>

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@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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