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"<br>
<br>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.<br>
<br>There are a few stoves in <a href="http://www.appropedia.org/A_Woodstove_Compendium">A Woodstove Compendium</a> 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.<br>
<br>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.<br><br>Has anyone had different experiences? I was not able to find anything recent on sawdust (and other fine bio-material) combustion in cook stoves. <br>
<br clear="all">Marc Paré<br>B.S. Mechanical Engineering<br>Georgia Institute of Technology | Université de Technologie de Compiègne<br><br>my cv, etc. | <a href="http://notwandering.com" target="_blank">http://notwandering.com</a><br>
<br><br><div class="gmail_quote">On Sun, Jan 16, 2011 at 5:38 PM, Kevin <span dir="ltr"><<a href="mailto:kchisholm@ca.inter.net">kchisholm@ca.inter.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div link="blue" bgcolor="#ffffff" vlink="purple" lang="DE">
<div><font face="Arial" size="2">Dear Martin</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">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?</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">Thanks!</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">Kevin </font></div>
<blockquote style="border-left: 2px solid rgb(0, 0, 0); padding-left: 5px; padding-right: 0px; margin-left: 5px; margin-right: 0px;" dir="ltr"><div><div></div><div class="h5">
<div style="font: 10pt arial;">----- Original Message ----- </div>
<div style="font: 10pt arial; background: none repeat scroll 0% 0% rgb(228, 228, 228);"><b>From:</b>
<a title="boll.bn@t-online.de" href="mailto:boll.bn@t-online.de" target="_blank">Boll, Martin
Dr.</a> </div>
<div style="font: 10pt arial;"><b>To:</b> <a title="stoves@lists.bioenergylists.org" href="mailto:stoves@lists.bioenergylists.org" target="_blank">stoves@lists.bioenergylists.org</a>
</div>
<div style="font: 10pt arial;"><b>Cc:</b> <a title="peetersfrans@telenet.be" href="mailto:peetersfrans@telenet.be" target="_blank">'Frans Peeters'</a> </div>
<div style="font: 10pt arial;"><b>Sent:</b> Sunday, January 16, 2011 4:44
PM</div>
<div style="font: 10pt arial;"><b>Subject:</b> [Stoves] old patent-paper about
a saw-dust stoves</div>
<div><br></div>
<div>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-family: Arial; font-size: 10pt;"> </span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-family: Arial; font-size: 10pt;" lang="EN-GB"> </span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-family: Arial; font-size: 10pt;" lang="EN-GB">Dear
stovers,</span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-family: Arial; font-size: 10pt;" lang="EN-GB">Possibly there is still
some interest in old-fashioned saw-dust-stoves, even only to know about-
</span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-family: Arial; font-size: 10pt;" lang="EN-GB">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.</span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-family: Arial; font-size: 10pt;" lang="EN-GB"> </span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-family: Arial; font-size: 10pt;" lang="EN-GB">Cover-sheet with the
description for the intention of the insert (“Einsatz”)
</span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-family: Arial; font-size: 10pt;" lang="EN-GB"><a href="http://www.collection-appareils.fr/brevet/Kaftanski/DE423728/page1.pdf" target="_blank">http://www.collection-appareils.fr/brevet/Kaftanski/DE423728/page1.pdf</a></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-family: Arial; font-size: 10pt;" lang="EN-GB"> </span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-family: Arial; font-size: 10pt;" lang="EN-GB">Drawings with
description:</span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-family: Arial; font-size: 10pt;" lang="EN-GB"><a href="http://www.collection-appareils.fr/brevet/Kaftanski/DE423728/page2.pdf" target="_blank">http://www.collection-appareils.fr/brevet/Kaftanski/DE423728/page2.pdf</a></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-family: Arial; font-size: 10pt;" lang="EN-GB"> </span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-family: Arial; font-size: 10pt;" lang="EN-GB">Sometimes progress can
happen by altering old ideas.</span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-family: Arial; font-size: 10pt;" lang="EN-GB">Let the stovers know if
you would like to modernize it for whatever
purpose.</span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-family: Arial; font-size: 10pt;" lang="EN-GB"> </span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-family: Arial; font-size: 10pt;" lang="EN-GB">Best wishes for the New
Year!</span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-family: Arial; font-size: 10pt;" lang="EN-GB"> </span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-family: Arial; font-size: 10pt;" lang="EN-GB">Regards</span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-family: Arial; font-size: 10pt;" lang="EN-GB">Martin</span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-family: Arial; font-size: 10pt;" lang="EN-GB"> </span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-family: Arial; font-size: 10pt;" lang="EN-GB"> </span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-family: Arial; font-size: 10pt;" lang="EN-GB"> </span></font></p></div>
</div></div><p>
</p><hr>
<p></p>_______________________________________________<br>Stoves mailing
list<br><br>to Send a Message to the list, use the email address<br>Stoves
mailing list<br><br>to UNSUBSCRIBE or Change your List Settings use the web
page<br><a href="http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org" target="_blank">http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org</a><br><br>for
more Biomass Cooking Stoves, News and Information see our web
site:<br><a href="http://www.bioenergylists.org/" target="_blank">http://www.bioenergylists.org/</a><br><a href="mailto:Stoves@lists.bioenergylists.org" target="_blank">Stoves@lists.bioenergylists.org</a><br><a href="http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org" target="_blank">http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org</a><br>
<p>
</p><hr>
<p></p>
<p color="#000000" align="left">No virus found in this
message.<br>Checked by AVG - <a href="http://www.avg.com" target="_blank">www.avg.com</a><br>Version: 10.0.1191 / Virus
Database: 1435/3384 - Release Date: 01/16/11</p></blockquote></div>
<br>_______________________________________________<br>
Stoves mailing list<br>
<br>
to Send a Message to the list, use the email address<br>
Stoves mailing list<br>
<br>
to UNSUBSCRIBE or Change your List Settings use the web page<br>
<a href="http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org" target="_blank">http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org</a><br>
<br>
for more Biomass Cooking Stoves, News and Information see our web site:<br>
<a href="http://www.bioenergylists.org/" target="_blank">http://www.bioenergylists.org/</a><br>
<a href="mailto:Stoves@lists.bioenergylists.org">Stoves@lists.bioenergylists.org</a><br>
<a href="http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org" target="_blank">http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org</a><br>
<br></blockquote></div><br>