<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Dear Roberto and Stovers, <div class=""><br class=""></div><div class="">It is an interesting design that preheats the secondary air and gives it some velocity. I would think the flame front would be hard to keep uniform with the obstruction in the center. They also mention that the packed fuel is best when there is 70% porosity for achieving the proper airflow. Determining Bulk Density and Particle Density this can easily be determined. I’m also thinking adding in carbon densities may also be useful to determine the energy in the primary flow. They mention the size best being 40 - 50 mm chopped. So I am thinking more ‘cube like’. shaped particles. Otherwise the size is not a good measure to estimate porosity because shape will have more to so with porosity than size. They also mention moisture as being important. </div><div class=""><br class=""></div><div class="">So just in this article we have a list of important measurements for the fuel useful if we want to optimize the combustion and as indicator of the stoves usefulness in a different location. Also what pre-prep may be required of the biomass at hand to be used in this stove. </div><div class=""><br class=""></div><div class="">Regards</div><div class=""><br class=""></div><div class="">Frank</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Aug 29, 2017, at 10:46 AM, Roberto Poehlmann <<a href="mailto:roberto.poehlmann@gmail.com" class="">roberto.poehlmann@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="auto" class="">Hi all,</div><div dir="auto" class="">This is an interesting work done in Bulgaria about Tlud stoves for heating greenhouses and generate biochar:</div><div dir="auto" class=""><br class=""></div><div dir="auto" class=""><a href="https://www.researchgate.net/profile/Edmond_Maican/publication/309380324_Poster_Edmond_Maican/links/580c96b708ae2cb3a5da72e5/Poster-Edmond-Maican.pdf?origin=publication_detail" class="">https://www.researchgate.net/profile/Edmond_Maican/publication/309380324_Poster_Edmond_Maican/links/580c96b708ae2cb3a5da72e5/Poster-Edmond-Maican.pdf?origin=publication_detail</a><br class=""></div><div dir="auto" class=""><br class=""></div><div dir="auto" class=""><a href="https://sgemworld.at/sgemlib/spip.php?article7750" class="">https://sgemworld.at/sgemlib/spip.php?article7750</a><br class=""></div><div dir="auto" class=""><br class=""></div><div dir="auto" class="">It has an interesting design for mixing secondary Air with the syngas.</div><div dir="auto" class=""><br class=""></div><div dir="auto" class="">Cheers</div><div dir="auto" class="">Roberto Poehlmann</div><div dir="auto" class="">Valdivia, Chile</div><div dir="auto" class=""><br class=""></div><div dir="auto" class=""><br class=""></div><div dir="ltr" class="">-- <br class=""></div><div class="gmail_signature" data-smartmail="gmail_signature">Atte.<br class="">Roberto</div>
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<div class="">Thanks</div><div class=""><br class=""></div><div class="">Frank</div><div class="">Frank Shields</div><div class="">Gabilan Laboratory</div><div class="">Keith Day Company, Inc.</div><div class="">1091 Madison Lane</div><div class="">Salinas, CA 93907</div><div class="">(831) 246-0417 cell</div><div class="">(831) 771-0126 office</div><div class=""><a href="mailto:fShields@keithdaycompany.com" class="">fShields@keithdaycompany.com</a></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><a href="mailto:franke@cruzio.com" class="">franke@cruzio.com</a></div><div class=""><br class=""></div><br class="Apple-interchange-newline">
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