[Stoves] The Dung One Stove/Dung Fuel Questions

[adkarve]

In India, dung is generally made manually into balls or flat cakes and dried
in the sun. Some biomass like grass, leaves or ceereal stover is also mixed
in these briquettes.
Yours
A.D.Karve
----- Original Message -----
From: lannych <lannych at bellsouth.net>
To: <stoves at listserv.repp.org>
Sent: Tuesday, September 12, 2006 1:29 AM
Subject: Re: [Stoves] The Dung One Stove/Dung Fuel Questions


> Is dung usually gathered fresh daily, and dried before use as fuel or is
it
> typically left  in the field to dry and be leached by rain (if there is
any
> rain)? If so how long?
> Are dung patties reshaped or are they used as they hit the trail, so to
> speak
> Lanny Henson.
>
> ----- Original Message -----
> From: "lannych" <lannych at bellsouth.net>
> To: <stoves at listserv.repp.org>
> Sent: Sunday, September 03, 2006 5:53 PM
> Subject: [Stoves] The Dung One Stove
>
>
> > See images at: http://bioenergylists.org/en/hensondung
> >
> >
> >
> > The Dung One Stove is my first attempt to design a stove to burn cow
dung.
> >
> >
> >
> > I started with a center fire burner that has a full bottom Simple Bar
> > Grate,
> > installed into a double wall burner module that has only bottom supply
> > air.
> >
> > I cut the dry cow patty into strips and put 240 grams into the burner
and
> > used 5 grams of small wood and drops of wax for fire starter.
> >
> > It took little effort to top light the dung and it began to burn with
> > little
> > visible smoke.
> >
> >
> >
> > After it burned for about 3 min I set a pot module on the burner module
> > with
> > 5 liters of water.
> >
> >
> >
> > A few minuets later the dung began to smoke so I removed the pot and the
> > smoke cleared. I installed the pot again with the same results.
> >
> > The pot gap did not allow enough air flow so I set one empty pot module
on
> > the burner and set a second module with the pot of water on top for a
> > stack
> > of 3 modules which created 3ft/90cm of draft height. This configuration
is
> > too tall and a tip over hazard but with 3 ft of draft the dung burned
with
> > only a little visible smoke.
> >
> >
> >
> > The 240 grams were consumed in a few minuets which way to fast to
> > effectively heat the pot.
> >
> >
> >
> > The 5 liters only gained 80 degF, most of the heat just blew past the
pot.
> >
> >
> >
> > This CF Burner with a full Simple Bar Grate may work for a stove that
> > needs
> > fast heat like a wok but it is going to take a different type of burner
> > for
> > leached out cow dung to heat a pot.
> >
> >
> >
> > I am new to dung, so to speak but a clean burning dung stove does seem
> > possible. I did use dry leached out dung, about 6 months on the ground
> > which
> > may not be what most dung burners use but I am thinking that a burner
with
> > side/top supplied combustion air would work better for leached or just
dry
> > fresh dung.
> >
> >
> >
> > The next time my dung burner makes it to the top of the list I will use
a
> > side supply/ Side Winder Vortex Burner and no bottom air, until the char
> > phase, and see how that works. I will also stay up wind!
> >
> > Sometimes I am frustrated with my list of projects which is like a pack
of
> > attention starved dogs that mob you when you step out the back door..I
> > just
> > had a brain storm, a list burning stove, that is it!
> >
> >
> >
> > Thanks for viewing.
> >
> > Lanny Henson, having fun with dung!
> >
> >
> >
> > The photos show
> >
> > Cutting a cow patty to fit in the burner  dung05
> >
> > Start up, top lit with 5 gr of wood and a few drops of wax, 01
> >
> > About 5 min later 02
> >
> > About 15 min and out of control 03
> >
> > Charcoal phase 04
> >
> > _______________________________________________
> > Stoves mailing list
> > Stoves at listserv.repp.org
> > http://listserv.repp.org/mailman/listinfo/stoves_listserv.repp.org
> >
>
>
>
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