<div dir="ltr"><div>Hello Saloop;</div><div><br></div><div>It looks like you are making progress. </div><div><br></div><div>I think you need more secondary air and better mixing of air and pyrogas, because your flame is too tall. Try using larger secondary air holes. According to Reed et al (2000) you need up to 6 times more secondary air than primary air. That would be supplying about 1.5 times the stoichiometric requirement for oxygen. The greater than stoichiometric oxygen is needed to compensate of incomplete mixing of oxidant and fuel.</div><div><br></div><div>Reed, TB; Anselmo, E; Kircher, K. 2000. Testing and modeling the wood-gas turbo stove. Presented at the Progresss in Thermochemical Biomass Conversion Conference, Sept. 17-22, 2000, Tyrol, Austria </div><div><a href="http://journeytoforever.org/biofuel_library/TurboStove.pdf">http://journeytoforever.org/biofuel_library/TurboStove.pdf</a> </div><div><br></div><div>It would be good to have a lower flame, because it is best not to have the flame contact the bottom of the pot, where is can cool and deposit soot. Cooling the flame can result in incomplete combustion. You may want to raise the pot so there is sufficient room for the flame to complete combustion.</div><div><br></div><div>Consider putting a metal shield ("skirt") around the pot to direct heat up its sides.</div><div><br></div><div>I will leave it to others, such as Crispin, to comment on your calculations of efficiency.</div><div><br></div><div>In a week or so, I will be describing a couple of burners that I have designed that give a lower flame height. One you have already seen which is a burner with holes, but is 1.2-1.3 times the diameter of the TLUD reactor. The second adds in a central distributor of secondary air. I have attached photographs of what their flames look like at medium power.</div><div><br></div><div>All the best,</div><div>Julien</div><div><br></div><div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Dec 30, 2014 at 7:11 AM, Saloop T S <span dir="ltr"><<a href="mailto:t.s.saloop@gmail.com" target="_blank">t.s.saloop@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir="ltr">Respected sir,<br>
Please find the attached document and do comment on it.</p>
</blockquote></div><br><br clear="all"><br>-- <br><div class="gmail_signature"><div dir="ltr">Julien Winter<br>Cobourg, ON, CANADA<br></div></div>
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