<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Tom,</div><div><br></div><div>All I can say is that my deflectors work like gang busters. Not sure why the idea is not more widely used. I use three washers. Maybe I just got lucky, but deflectors above the secondary air gap, with a draft enhancer the same as the diameter of the TLUD, is the solution I have standardized on. I use two cans of the same size: one for the TLUD and one for draft.<br><br>Cheers,</div><div><br></div><div>Jock</div><div><br><div>Jock Gill</div><div>P.O. Box 3</div><div>Peacham, VT 05862</div><div><br></div><div>Cell: (617) 449-8111</div><div><br></div><div><span style="font-weight: bold; text-decoration: underline; background-color: rgba(255, 255, 255, 0);"><a href="http://google.com/+JockGill">google.com/+JockGill</a></span></div><div><br></div><div><span style="background-color: rgba(255, 255, 255, 0);">:> Extract CO2 from the atmosphere! <:</span></div><div><br></div>Via iPad</div><div><br>On Feb 26, 2014, at 10:45 AM, Tom Miles <<a href="mailto:tmiles@trmiles.com">tmiles@trmiles.com</a>> wrote:<br><br></div><blockquote type="cite"><div><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta name="Generator" content="Microsoft Word 14 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--><div class="WordSection1"><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Jock,<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">As you point out is it a mixing problem and there are different ways to solve it. The gap and plates work as long as there is enough energy for the air and producer gas to mix. Otherwise they can float along side by side without ever mixing, or just mixing poorly. John and Flip Anderson tried using ceramic plates to improve mixing and flow in a rocket stove. It seemed to work but after considerable testing they abandoned it. <o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Tom<o:p></o:p></span></p><p class="MsoNormal"><a name="_MailEndCompose"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></a></p><div><div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Jock Gill [<a href="mailto:jg45@icloud.com">mailto:jg45@icloud.com</a>] <br><b>Sent:</b> Wednesday, February 26, 2014 4:51 AM<br><b>To:</b> Discussion of biomass cooking stoves<br><b>Cc:</b> Tom Miles<br><b>Subject:</b> Re: [Stoves] diy TLUD flame<o:p></o:p></span></p></div></div><p class="MsoNormal"><o:p> </o:p></p><div><p class="MsoNormal">Tom,<o:p></o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div><div><p class="MsoNormal">I find that the use of a gap for the secondary air, NOT holes, combined with the use of washers as deflectors, greatly improves turbulence [fuel air mixing] as well as residence time in the combustion zone. This technique generally keeps the flames within the TLUD. Long flames coming out of a tLud are going to carry a lot of particulate matter out with them. Fan not required.<o:p></o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div><div><p class="MsoNormal">Checkout my post on Greater Democracy on Pyro-Grilling.<o:p></o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div><div><p class="MsoNormal">Cheers,<o:p></o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div><div><p class="MsoNormal">Jock<o:p></o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p><div><p class="MsoNormal">Jock Gill<o:p></o:p></p></div><div><p class="MsoNormal">P.O. Box 3<o:p></o:p></p></div><div><p class="MsoNormal">Peacham, VT 05862<o:p></o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div><div><p class="MsoNormal">Cell: (617) 449-8111<o:p></o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div><div><p class="MsoNormal"><b><u><a href="http://google.com/+JockGill">google.com/+JockGill</a></u></b><o:p></o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div><div><p class="MsoNormal">:> Extract CO2 from the atmosphere! <:<o:p></o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div><p class="MsoNormal">Via iPad<o:p></o:p></p></div><div><p class="MsoNormal" style="margin-bottom:12.0pt"><br>On Feb 26, 2014, at 1:06 AM, Tom Miles <<a href="mailto:tmiles@trmiles.com">tmiles@trmiles.com</a>> wrote:<o:p></o:p></p></div><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><div><p class="MsoNormal">Tlud users can comment but in general the gas that the TLUD generates is about the same density as the air it reacts with. To get a good tight flame you need energy (pressure) to mix the two gases. That's where a fan is handy. <br><br>Tom<br><br>Sent from my iPad<br><br><br><o:p></o:p></p><p class="MsoNormal">On Feb 25, 2014, at 9:31 PM, "<a href="mailto:revjcsd@juno.com">revjcsd@juno.com</a>" <<a href="mailto:revjcsd@juno.com">revjcsd@juno.com</a>> wrote:<o:p></o:p></p><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal"><o:p> </o:p></p></blockquote><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal">Is there a discussion on how to control DIY TLUD's flame somewhere in the archive? Or elsewhere?<o:p></o:p></p></blockquote><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal"><o:p> </o:p></p></blockquote><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal">Other than the Belonio-Olivier burner, I have yet to see a TLUD without the long tail of flame.<o:p></o:p></p></blockquote><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal"><o:p> </o:p></p></blockquote><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal">Thanks.<o:p></o:p></p></blockquote><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal"><o:p> </o:p></p></blockquote><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal">_______________________________________________<o:p></o:p></p></blockquote><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal">Stoves mailing list<o:p></o:p></p></blockquote><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal"><o:p> </o:p></p></blockquote><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal">to Send a Message to the list, use the email address<o:p></o:p></p></blockquote><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal"><a href="mailto:stoves@lists.bioenergylists.org">stoves@lists.bioenergylists.org</a><o:p></o:p></p></blockquote><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal"><o:p> </o:p></p></blockquote><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal">to UNSUBSCRIBE or Change your List Settings use the web page<o:p></o:p></p></blockquote><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal"><a href="http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org">http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org</a><o:p></o:p></p></blockquote><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal"><o:p> </o:p></p></blockquote><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal">for more Biomass Cooking Stoves, News and Information see our web site:<o:p></o:p></p></blockquote><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal"><a href="http://stoves.bioenergylists.org/">http://stoves.bioenergylists.org/</a><o:p></o:p></p></blockquote><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal"><o:p> </o:p></p></blockquote><p class="MsoNormal" style="margin-bottom:12.0pt"><br>_______________________________________________<br>Stoves mailing list<br><br>to Send a Message to the list, use the email address<br><a href="mailto:stoves@lists.bioenergylists.org">stoves@lists.bioenergylists.org</a><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">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://stoves.bioenergylists.org/">http://stoves.bioenergylists.org/</a><o:p></o:p></p></div></blockquote></div></div></blockquote></body></html>