[Stoves] SPAM Dung Rocket Stove - Failed Test

Fri Jan 6 04:26:20 CST 2023

Dear KEVIN

I think we discsed 30 y ago about frensh frees …..but Canada was to cold for patatos down 1,5 $ !

I remember you wash  salt out of dunge  and looked for analytics for the ash danger .

As for dung cooking/baking ,it is done in Anatolia TURKEY.   No trees ,to see. villages of mud and corn looks haver, no mais .

The fireplace is chimney  fumehood  integrated about 3 meter high and always a pasat wind avaiable . 

To replace it you need a suction stove , fan , jet  or and partial wood/dung using in the 3th world only…

Regards

F.

Van: Stoves <stoves-bounces at lists.bioenergylists.org> Namens Ronal Larson
Verzonden: vrijdag 6 januari 2023 5:54
Aan: Kevin McLean <kevin at sun24.org>; Paul Olivier <paul.olivier at esrla.com>; stoves at lists.bioenergylists.org
Onderwerp: Re: [Stoves] ***SPAM*** Dung Rocket Stove - Failed Test

Kevin,  Paul and stoves list

                1.  What is the reason for this test of a rocket - instead of a TLUD or other char-making design?

                2.  I agree with Paul, but I can conceive of cost, time spent,  and CDR advantages of charring dung, at lest with certain family situations.   But I can’t see those advantages with combusting dung.

Ron

On Jan 5, 2023, at 9:57 AM, Paul Olivier <paul.olivier at esrla.com <mailto:paul.olivier at esrla.com> > wrote:

Dung is not a good fuel.

It is much better to ferment it and use it as a feed.

On Thu, Jan 5, 2023 at 10:12 PM Kevin McLean <kevin at sun24.org <mailto:kevin at sun24.org> > wrote:

List,

Today we tested a dung rocket stove.  I'm a little surprised that the test was a failure.  Can anyone suggest changes?  And can anyone in India help us with our testing of dung as fuel?

This is very similar to a sawdust cookstove.  We made cylinders of dung with vertical holes in the center and let them dry for a month.  We did not mix anything into the dung.  We used 5 liter paint cans to form the cylinders.

<Dung rocket stove - wet.jpeg>

<Dung cylinder - Failed test.jpeg>

We tested with and without a metal can over the dung cylinder.  We raised the cylinder and lit a wood fire under it.  The fire was never strong and there was a lot of smoke.  Here is a video <https://drive.google.com/file/d/1xCrABfFFOVlvtGn925VW8FT9lXl660Zk/view?usp=share_link>  of the test with a metal can over the dung cylinder.

We seem to be having early success with upright dung sticks in a metal band and top lighting piles of dung patties.  But these need to be tested by people more familiar with using dung as fuel.

<Dung sticks in a metal band.jpeg>

<TDB of pile of dung patties.jpeg>

We could use some help from someone in an area where dung is used for cooking.  None of my colleagues live in such an area.

Thanks, 

Kevin

Kevin McLean, President

Sun24.org <http://Sun24.org> 

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-- 

Paul A. Olivier PhD
104/43 Phu Dong Thien Vuong
Dalat
Vietnam

Louisiana telephone: 1-337-447-4124 (rings Vietnam)
Mobile: 090-694-1573 (in Vietnam)
Skype address: Xpolivier
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