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Dear Kirk</div>
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You are correct. It is how Dr AD's charcoal powder maker works with sugarcane leaves: using a retort within a fire. </div>
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>From your description there is no reason why fuels cannot be mixed - sawdust and so on - that is hard to burn on its own. </div>
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Thanks for reporting your progress. It is inspiring. </div>
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Regards </div>
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Crispin </div>
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BBM 2B567CC3</div>
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<div><b>From: </b>kgharris</div>
<div><b>Sent: </b>Thursday, December 18, 2014 03:46</div>
<div><b>To: </b>Discussion of biomass cooking stoves</div>
<div><b>Reply To: </b>Discussion of biomass cooking stoves</div>
<div><b>Subject: </b>Re: [Stoves] Challenging fuel</div>
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<div><font size="2" face="Arial">Marc and All,</font></div>
<div><font size="2" face="Arial"></font> </div>
<div><font size="2" face="Arial">Was there not a post a month or two ago about putting rice hulls or saw dust into a can with a hole in the top. This then was put in the reactor with fuel around it. The heat of the stove pyrolyzed the contents of the can
and produced wood gas which exited the hole and was burned in the secondary. I forget who posted it and could not find the post, but it was a wonderful idea. I tried this with saw dust and with pellets and both worked. The can needs to be raised off the grate some
so pyrolysis will finish before the migratory pyrolysis front goes out or it smokes on and on. A single screening of the almond hulls will seperate the small pieces and dust out for use in the can, while the larger pieces will be the outer fuel. This way
the small pieces are used without clogging the primary air passage. Perhaps pieces that are too large could be used in the can as well without having to chop them up. The can cannot be to big or the power level is reduced. The can which worked for me was
.4 the diameter which is 1/6 the area of the reactor.</font></div>
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<div><font size="2" face="Arial">Kirk</font></div>
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<div style="font:10pt arial">----- Original Message ----- </div>
<div style="font:10pt arial; background:#e4e4e4"><b>From:</b> <a title=""Marquitusus "@k.mx.sonic.net" href="mailto:"Marquitusus "@k.mx.sonic.net">
"Marquitusus "@k.mx.sonic.net</a> </div>
<div style="font:10pt arial"><b>To:</b> <a title="stoves@lists.bioenergylists.org" href="mailto:stoves@lists.bioenergylists.org">
'Discussion of biomass cooking stoves'</a> </div>
<div style="font:10pt arial"><b>Sent:</b> Tuesday, December 16, 2014 3:21 PM</div>
<div style="font:10pt arial"><b>Subject:</b> [Stoves] Challenging fuel</div>
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<p class="x_MsoNormal" style="margin-bottom:12pt"><span style="font-family:'Calibri','sans-serif'">Dear stovers,<br>
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I send you a picture of the fuel I'm trying to deal with.<br>
This is the raw fuel as it is normally sold here. They are almond husks.<br>
As you see, it's sizes varies from 1 to 40mm!<br>
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Maybe people can tell me how this can affect the TLUD design</span></p>
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