[Stoves] old patent-paper about a saw-dust stoves

[Marc Pare]

I plodded through the bioenergylists archives looking for sawdust stove
discussions a few months ago in the hopes of finding information the would
be helpful for natural draft rice husk stoves. I believe the most fruitful
thing to search for is "WWII sawdust stove"

I only found one class of design: an outer cylinder and inner tube. You
light the sawdust from the bottom and the inner tube draws air to sustain
the combustion. It is possible to just use a stick and pack the sawdust
instead.

There are a few stoves in A Woodstove
Compendium<http://www.appropedia.org/A_Woodstove_Compendium>that
operate on this principle. I had some Bolivians draw me such a design
when they visited our group in Atlanta. Apparently they are rather commonly
used for drying/curing operations.

It's not hard at all to get them going. In fact, we melted a few of our
sheet metal cylinders because they would go out of control. Made some nice
looking sculptures as a result.

Has anyone had different experiences? I was not able to find anything recent
on sawdust (and other fine bio-material) combustion in cook stoves.

Marc Paré
B.S. Mechanical Engineering
Georgia Institute of Technology | Université de Technologie de Compiègne

my cv, etc. | http://notwandering.com


On Sun, Jan 16, 2011 at 5:38 PM, Kevin <kchisholm at ca.inter.net> wrote:

>  Dear Martin
>
> Thanks for the interesting Patent. Would you be kind enough to describe how
> the stove is intended to work, for the benefit of us who don't read German?
>
> Thanks!
>
> Kevin
>
> ----- Original Message -----
> *From:* Boll, Martin Dr. <boll.bn at t-online.de>
> *To:* stoves at lists.bioenergylists.org
> *Cc:* 'Frans Peeters' <peetersfrans at telenet.be>
> *Sent:* Sunday, January 16, 2011 4:44 PM
> *Subject:* [Stoves] old patent-paper about a saw-dust stoves
>
>
>
>
>
> Dear stovers,
>
> Possibly there is still some interest in old-fashioned saw-dust-stoves,
> even only to know about-
>
> Occasionally I found an URL about an Old German patent for equipment to use
> saw-dust-stoves as well to burn wood-logs and coal.
>
>
>
> Cover-sheet with the description for the intention of the insert
> (“Einsatz”)
>
> http://www.collection-appareils.fr/brevet/Kaftanski/DE423728/page1.pdf
>
>
>
> Drawings with description:
>
> http://www.collection-appareils.fr/brevet/Kaftanski/DE423728/page2.pdf
>
>
>
> Sometimes progress can happen by altering old ideas.
>
> Let the stovers know if you would like to modernize it for whatever
> purpose.
>
>
>
> Best wishes for the New Year!
>
>
>
> Regards
>
> Martin
>
>
>
>
>
>
>
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