[Stoves] 4 Charcoal production, improved

[Tom Miles]

Chris,

Dan and Rob still advocate more efficient charcoal production and
combustion. Few people seem to be interested in charcoal or understand its
potential impact.

What's the typical investment and production of an Adam+Partner kiln? What's
the fuel input/charcoal output compared to a typical kiln?

Tom 

-----Original Message-----
From: stoves-bounces at listserv.repp.org
[mailto:stoves-bounces at listserv.repp.org] On Behalf Of adam u partner
Sent: Thursday, March 22, 2007 2:37 AM
To: scda2 at t-online.de; Discussion of biomass cooking stoves
Subject: Re: [Stoves] 4 Charcoal production, improved

adam u partner schrieb:
Dear Tom,
i just googled this under Rob Bailis, the article is supporting (!) a more
environmentally charcoal production !:

http://www.energybulletin.net/5255.html

Cleaner creation of charcoal
However, the researchers' model predicts that a large-scale shift to
burning charcoal, combined with sustainable forest management and use of
more efficient charcoal-production technologies, would avert some 3 million
premature deaths and reduce greenhouse-gas emissions by 65% if
implemented rapidly. Even if adopted gradually over 50 years, the move
would ultimately delay 1 million deaths and cut greenhouse-gas emissions
by 45%, relative to simply carrying on as usual.

Furthermore, the technologies to make charcoal more cleanly and
efficiently, such as permanent brick or steel kilns with systems
to control emissions, could be easily implemented. "You don't often come
across a situation where existing technology would make such a big
difference," says Kammen.

Although the authors do not outline specific policy recommendations,
their findings address several of the UN Millennium Development Goals,
including reducing child mortality and ensuring environmental 
sustainability.

"The decisions made today are going to determine whether we reach
those outcomes," says Bailis. "Our findings are meant to encourage as much
dialogue as possible and remove some of the tarnish associated with
the use of charcoal."

References
1. Bailis R., Ezzati M. & Kammen D. Science, 308. 98 - 103 (2005). | 
Article |

> Chris,
> I don't think the use of charcoal or the potential impact of improved
> charcoal production and use is appreciated. The effort by Dan Kammen and
Rob
> Bailis to draw attention to it a couple of years ago seems to have fallen
on
> deaf ears. 
> Tom 
>   
Hmm,
> quite astonishing that no money at all, not even promilles are foreseen
> for an improved charcoal production from biomass ....!
> Kenya and Zambia alone are producing about 3,4 millions tons/year of
> charcoal for household consumption- alone.
> 9/10  of the wood is burned into the sky.......!
> Modern low-cost retort kilns do have an up to 70% reduced emissions
> of harmful volatiles....
> They have an efficiency of up to 40% !!
> They cost per unit about 300 Euro
> One unit can process about 3 batches per week = about 750kg charcoal
> per week....
> Also charcoal from other biomass can be processed.
> The produced charcoal could be marketed as "ECO charcoal"
> if the biomass comes from agricultural residue
> or from sustainable plantations.
> Strange situation.
> Chris ADAM


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