[Stoves] sausage maker adaptor for manual briquette

Sat Nov 26 14:02:52 CST 2011

Richard,

Yes I wish I had some time and money to travel down south, I'd be enchanted
to taste Tanzanian specialties cooked with local charcoal briquettes!
That's funny how the price "40% less than charcoal" keeps coming when I read
about different charcoal briquettes projects. Almost like a golden rule ...

Putting clay in briquettes feels odd that is true, feels like cooking with
stones.

Could clay have any beneficial property for cooking? The May-June 2010
edition of the magazine "Vie", published in Senegal I think, is dedicated to
green charcoal and charcoal briquettes. It is said:
"A l’aide du cisaillement du Rotor press, on obtient un mélange à l’échelle
nanométrique. Pour rendre ce mélange plus homogène, on peut y ajouter un
compatibilisant. La dispersion des plaquettes d’argile dans la masse
cellulosique permet au biocharbon produit de voir son temps de combustion
augmenter drastiquement. Par contre, sa hauteur de flamme est réduite, ce
qui est du reste bénéfique pour notre mode de cuisson. Dans les travaux de
recherche effectués dans notre laboratoire en collaboration avec des
homologues américains et allemands, nous avons montré que la présence de
plaquettes d’argile réduit l’émission de gaz carbonique dans de tels
composites, ce qui est très important pour la réduction des gaz à effet de
serre."
Which can be translated like:
"With the help of the Rotor press shearing, we obtain a mix at the
nanometric scale. To make this mix more homogenous, we can add a
compatibiliser. Dispersion of clay plates in cellulosic mass allows the
biocharcoal produced to see its combustion time increase critically. On the
other hand, its flame height is reduced, which is besides beneficial for our
way of cooking. In the research works achieved in our laboratory in
collaboration with American and German counterparts, we have shown that the
presence of clay plates decreases gas carbon emission in such composites,
which is very important for the green house gases reduction."

What do you think about that? Have you work or do you know works on this
question? Can clay in briquettes help save the planet :) ?

"The quality and energy density It is NOT due to pressure but finesse in
preparing the blend"
That's very enlighting! I think it is something beginners like me are able
to understand on their own, but it is good you remind me how important it
is. Sometimes, we do put a lot of effort in things which are secondary,
while the most important things get only small attention.
What about a tutorial, a how-to paper on the rare art of briquette-making?
Perhaps it is on www.legacyfound.org, which I definitely cannot access? I
always bumped into non-thorough 4 to 5 pages papers on how it is easy to
make briquettes and how everyone can do it in his/her backyard.

Cheers,

Xavier

-----Message d'origine-----
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[mailto:stoves-bounces at lists.bioenergylists.org] De la part de
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Envoyé : vendredi 25 novembre 2011 08:05
À : stoves at lists.bioenergylists.org
Objet : Stoves Digest, Vol 15, Issue 40

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Today's Topics:

   1. Stoves] sausage maker adaptor for manual briquette
      (Richard Stanley)

----------------------------------------------------------------------

Message: 1
Date: Fri, 25 Nov 2011 10:06:02 +0100
From: Richard Stanley <rstanley at legacyfound.org>
To: Discussion of biomass cooking stoves
	<stoves at lists.bioenergylists.org>
Subject: [Stoves] Stoves] sausage maker adaptor for manual briquette
Message-ID: <0217549B-1E5B-41FB-B7C3-924755AA4572 at legacyfound.org>
Content-Type: text/plain; charset="windows-1252"

..Xavier,
Sorry for your troubles with flakey briquettes: 

I wish you had come with us to Three ways cafe up in Lushoto town up in the
Usambaras, here in Tanzania a few days ago?

The best darn chapatis, mandazis and roast chicken I have ever tasted this
side of the Pangani ? 

The briquettes charcoal wastes swept off the seller stall floor, some paper
scraps and a few leaves of unknown origin,  are  quick to start no
appreciable smoke last about 2 hours and cost about 40% less than charcoal
according to the shop owners?

No clay is used. Its reported to retard ignition and to make the clinker
product  harder to dispose of. 
Otherwise, In your case I don't know but I would guess that  the paper is
probably not sufficiently  dissociated . You really have to get it smashed
into whispy shards which dissolve in water, not curds or clumps but more
like what happens when you soak toilet paper or kleenex in water ..

The quality and energy density It is NOT due to pressure but finesse in
preparing the blend such that the final product is really solid and tightly
bound with well dissociated fibers..?

So many miss this point then revert to char briquettes dismissing the fine
art of blending because they never got it in the first place? 
Stick with it Xavier & send me some pictures .

Richard
encl: 
Production in The Mkombozi group's "D" (=Doche) lab
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Mariette Kusaga, master  trainer and 
restaurentur in action?Lushoto Nov 2011

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