to all concerned dung burners,
The ref. to "washing the dung" in Adelaide jolted my memory a bit: This is
what mary and francis did too. However it do not know what they did exactly:
ie., How much which type of additives used to get a clean hot burn. We await
their response but email out of miumbuni is non existent they have to await a
postal letter transcript of this com, from their son in Nairobi…
Richard
On Feb 12, 2013, at 4:17 PM, [email protected] wrote:
List, Richard, etal
I started this note off thinking I would try to prove that dung should not
be used for cooking at all. In googling, I found nothing (repeat nothing)
good to be said about using dung for cooking - except that it was sometimes
necessary because there was nothing else. The alternative of course is the
tremendous value of dung to improve soils. My guess is that almost
everywhere, that something can/should be planted for long term alternative fuel
supply not using dung. We have had recent discussion of Jatropha seeds for
instance.
But after looking at a lot of web material, an Australian site popped up for
improved cooking using a TLUD with dung. Many years ago I tried using dung in
Ethiopia with a TLUD and had zero success - so I was impressed. The site is
https://www.engineeringforchange.org/news/2011/10/09/cooking_in_adelaide_with_experimental_dung_burning_stoves.html
It probably is necessary to only view what they call Blog #4, but there are
three earlier - some showing the conversion of the dung into a fuel shape. I
could not tell from blog #4 what their eventual fuel shape was, but maybe
"cubes" of 4-5 cm size, if their starter material was typical. I doubt that
it was in the form of "patties" I liked all I could tell about their TLUD,
but think it could perhaps be improved with primary air control.
The saved char certainly has more value for soil improvement than the ash,
if ash from typical non-TLUD stoves is ever saved/used. But it is not clear to
me that their input dung wouldn't have been better used for composting with
wood char being used (from the beginning - not added) with the raw dung. Not
sure but there seemed to be enough efficiency improvement with the TLUD over
the three stone, that they need not use more dung - and can still retain a good
bit of the dung's soil-nutritional value. In this note I am trying to
emphasize using dung to replace fertilizer - a topic I know little about,
except I couldn't find a single place where dung use is recommended for cooking.
Contacting these clever Australian students would probably lead now to even
more information on the dung-stove-soil nutrition topic.
Ron
From: "Richard Stanley" <[email protected]>
To: "Discussion of biomass cooking stoves" <[email protected]>
Cc: "Kaji Sanu" <[email protected]>, "Kavita Mary and Francis"
<[email protected]>
Sent: Tuesday, February 12, 2013 2:37:52 PM
Subject: Re: [Stoves] Energy content cow dung
Dear Sarabagya,
I have ccy'd your request to our good friends, and briquette trainers'
researchers, Mary and Francis Kavita who are based in Kenya. They have trained
Masaai in making nice smelling, clean burring dung blend fuel briquettes ot in
Masaailand a couple of years ago. ( They have also developed similar blends for
elephant dung blends in same and neighboring regions in Kenya.
I also ccy it to Sanu Kaji of the Foundation for Sustainable Technologies
(FoST) in Thamel /Kathmandu as he is the resident expert in briquette making
there in you country (…and probably regionally as well). Finally wanted to
touch base also with Mzee Bob out there in Northern Masaailand, it may also
be useful to you as well in that you are looking at dung burning now. As a
replacement for wood (which was probably far more obtainable when you began
your work there), it made little sense to go to the trouble to making
briquettes-- but now ??
I'd trust Mary and Francis skills implicitly: We trained then in 2001 and they
have been all over the nation and region in fact, training others on their own
steam under their own business since that time. We had some camel dung blends
they made, tested at the Kenya Industrial Research& Development Institute
(KIRDI) for a potential project up in Somaliland a couple of years ago.
All the best (ukinaweza saida huyu jamaa, Francis, ilikua mzuri , asante sana)
Richard Stanley(mzee pia)
www.legacyfound.org
This may or may not be useful to you buOn Feb 11, 2013, at 6:49 AM, Sarbagya
Tuladhar wrote:
Hi Bob,
Really interesting on the work regarding the Maasai stove for cow dung. Can you
provide me more information on the stove ? Dung burning for fuel is a major
problem here in South Nepal and we are exploring on ways to combat them.
Cheers
Sarbagya Tuladhar
Nepal
Sent from my iPhone
On 11/02/2013, at 12:13 AM, [email protected] wrote:
> Some of the Maasai burn cow dung in their three stone fires and now burn it
> in our stove and report it is okay and they use less just like the wood
> burning folks. I want to do some analysis and need a reasonable estimate of
> energy per mass of some average dung. Googling I got about 75% of the energy
> density in hard wood fuel. Please send me info or sources on this. Don't need
> to bore the whole list so use my email. Thanks
> Bob. Maasai Stoves and Solar.
> Sent from my BlackBerry® smartphone provided by Airtel Tanzania.
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