[Stoves] Charcoal from waste - home cooking or other markets? (Re: Crispin, Anand Karve)

[alex english]

Elsen's carbonizer is explained here;

http://stoves.bioenergylists.org/node/165

and now he's into biochar seedballs;

https://www.facebook.com/photo.php?fbid=541605796040697&set=a.108602316007716.1073741827.100005738440345&type=3&theater

Alex

On Sat, Oct 15, 2016 at 2:39 AM, Anand Karve <adkarve at gmail.com> wrote:

> Dear Ron and others,
> Elsen and his partner visited us to have a look at our charring process.
> We received them at Pune railway station, but because they came from
> Africa, we expected them to be black, which they were not. We did not have
> mobile phones at that time, so it took us quite a while to make contact
> with them.  From Pune, we drove to Phaltan, to our Institute. At that time
> we made charcoal by using the oven and retort process. The visitors
> described to us the process which they were using. It more or less matched
> with what you have described.
> Yours
> A.D.Karve
>
>
> ***
> Dr. A.D. Karve
>
> Chairman, Samuchit Enviro Tech Pvt Ltd (www.samuchit.com)
>
> Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)
>
> On Fri, Oct 14, 2016 at 10:25 AM, Ronal W. Larson <
> rongretlarson at comcast.net> wrote:
>
>> List(s)  cc Andrew  (only one part of his message given below);  adding
>> the biochar list as there was no cooking part of Elsen’s work in Nairobi
>>
>>
>> <snip; then Andrew said, re Elsen Karstad and Elsen’s Kenyan company
>> “Chartist”, yesterday>
>>
>>
>> As I said Chardust in Kenya initially did it in a simple down
>> draught burner.
>>
>>
>> *[RWL:  It was simple, but quite large scale.  Worth discussing because
>> we hear so little about BLDD.  I visited Elsen but came down with unusual
>> medical experience (pneumonia plus more) in Nairobi before seeing what I
>> describe below.  *
>>
>> * The mental image I have is of a large tall “central” chimney - maybe
>> 8-10 oil barrels high.  The 8-10 radial covered “troughs”  maybe
>> half square meter in cross section  (??).  At the end of each of these
>> radial lines (length 5 meters??) was a grate (one or two square meters ??)
>> on which a worker placed the sawdust (later bagasse - maybe 10-15 cm
>> deep??) and lit each (from below).  After the pyrolysis front moved upwards
>> through the sawdust pile, one would see a red bright spot appear - and the
>> worker would place more saw dust (or bagasse - and could presumably be wood
>> chips) over each red spot as it appeared.  *
>> * Not sure, but probably two workers for this - maybe working all day.
>> I suppose there were dampers so each pile-charring could be stopped at the
>> right final pile height (20-30 cm?)— and another pile taking its place.*
>>
>> *I don’t believe any use was made of the tremendous heat produced - but
>> there was potential for brick-making, pottery or a bakery, etc..*
>>
>> * I can’t remember any details now, but Elsen also designed a fine TLUD.
>> Had some different features that I can’t now recall.  I don’t think this
>> ever went into production.  My trip was probably about 1997 or 1998.
>> Probably some discussion in the stove archives.  I went because Kenya was
>> relatively close to Ethiopia where I was developing a TLUD for enjira
>> cooking.  *
>>
>> * Tom Miles can probably correct a few errors above.  Hope this can get
>> also to Elsen -  who did some fine early work.*
>>
>> *Ron*
>>
>>
>> _______________________________________________
>> Stoves mailing list
>>
>> to Send a Message to the list, use the email address
>> stoves at lists.bioenergylists.org
>>
>> to UNSUBSCRIBE or Change your List Settings use the web page
>> http://lists.bioenergylists.org/mailman/listinfo/stoves_list
>> s.bioenergylists.org
>>
>> for more Biomass Cooking Stoves,  News and Information see our web site:
>> http://stoves.bioenergylists.org/
>>
>>
>>
>
> _______________________________________________
> Stoves mailing list
>
> to Send a Message to the list, use the email address
> stoves at lists.bioenergylists.org
>
> to UNSUBSCRIBE or Change your List Settings use the web page
> http://lists.bioenergylists.org/mailman/listinfo/stoves_
> lists.bioenergylists.org
>
> for more Biomass Cooking Stoves,  News and Information see our web site:
> http://stoves.bioenergylists.org/
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20161015/52a3872c/attachment.html>