[Stoves] Drawing down the dung pile

[Anand Karve]

Dear Crispin,
dung cakes are regularly used as fuel even in India. In areas where the
rainfall is scanty, and there are no trees, dung is used as the main cooking
fuel. In the high Himalaya, above the tree line, yak dung is the only fuel
available to the locals. The ash content of dung is normally very high. In
the case of animals eating mainly grass, the ash would consist mainly of
silica. I have heard of a of filter press, which can remove the water from
the dung along with the dissolved minerals. This would leave a product with
a higher calorific value.  It can be briquetted and sold as a standard fuel.
Yours
A.D.Karve

On Tue, Dec 7, 2010 at 12:47 AM, Crispin Pemberton-Pigott <
crispinpigott at gmail.com> wrote:

>  Dear Burners of Recycled Biomass
>
>
>
> We took delivery today of three (barely) steaming bags of goat and cattle
> dung with a view to starting to look for ways to burn it cleanly in space
> heating stoves.
>
>
>
> If there is interest from anyone in cooperating (by making stoves and
> trying them) we should start a thread here, preferably.
>
>
>
> I have already heard from a couple of people and Prof Lodoysamba is
> particularly interested. He says there are large amounts of goat dung which
> is normally not burned by nomads, though cattle dung is. Probably the reason
> is that no one has made a stove tuned to consume Capra Crap. Well, let’s put
> that omission behind us!
>
> We can call it the Crapra Stove Project – an international effort to turn
> steaming pellets into steaming pullets.
>
>
>
> The focus will be on North Asia because that seems to be where the current
> interest is.
>
>
>
> Regards
>
> Crispin
>
>
>
>
>
>
>
>
>
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-- 
***
Dr. A.D. Karve
President, Appropriate Rural Technology Institute (ARTI)

*Please change my email address in your records to: adkarve at gmail.com *
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