<div>Dear Tom,</div>
<div>our charring kilns are used primarily for light biomass such as dried leaves, paper waste, cardboard, threshing floor debris, pine needles, straw, etc. This material is too light to be transported to a central charring unit. Therefore the user takes the kilns to the place where the biomass is lying. A kiln accepts about 6 kg of such waste and takes about 15 minutes to char it. Since these are portable units, we dont bother to get any useful heat out of them. The material is not packed into the barrels, as it would obliterate the air flow. It is placed only lightly inside the barrel. If the operator finds that the material is obliterating the primary air, we advice him to reduce the quantity of material placed in the barrel.</div>
<div>Yours</div>
<div>A.D.Karve <br><br></div>
<div class="gmail_quote">On Sat, Sep 29, 2012 at 9:16 PM, Tom Miles <span dir="ltr"><<a href="mailto:tmiles@trmiles.com" target="_blank">tmiles@trmiles.com</a>></span> wrote:<br>
<blockquote style="BORDER-LEFT:#ccc 1px solid;MARGIN:0px 0px 0px 0.8ex;PADDING-LEFT:1ex" class="gmail_quote">
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<p class="MsoNormal"><span style="FONT-FAMILY:'Calibri','sans-serif';COLOR:#1f497d;FONT-SIZE:11pt">AD, Paul, Kobus and others. Many thanks for the suggestions. <u></u><u></u></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY:'Calibri','sans-serif';COLOR:#1f497d;FONT-SIZE:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY:'Calibri','sans-serif';COLOR:#1f497d;FONT-SIZE:11pt">What is the largest practical size (kg fuel/hr, kW) for a single TLUD with a clean stack for heat recovery? There must be a limit to the air penetration to get a clean gas burn form a natural draft stack or even a fan driven TLUD. <u></u><u></u></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY:'Calibri','sans-serif';COLOR:#1f497d;FONT-SIZE:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY:'Calibri','sans-serif';COLOR:#1f497d;FONT-SIZE:11pt">Tom <u></u><u></u></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY:'Calibri','sans-serif';COLOR:#1f497d;FONT-SIZE:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><b><span style="FONT-FAMILY:'Tahoma','sans-serif';FONT-SIZE:10pt">From:</span></b><span style="FONT-FAMILY:'Tahoma','sans-serif';FONT-SIZE:10pt"> <a href="mailto:stoves-bounces@lists.bioenergylists.org" target="_blank">stoves-bounces@lists.bioenergylists.org</a> [mailto:<a href="mailto:stoves-bounces@lists.bioenergylists.org" target="_blank">stoves-bounces@lists.bioenergylists.org</a>] <b>On Behalf Of </b>Anand Karve<br>
<b>Sent:</b> Friday, September 28, 2012 11:22 PM<br><b>To:</b> Discussion of biomass cooking stoves<br><b>Subject:</b> Re: [Stoves] Fabricated Burn Barrel TLUDS<u></u><u></u></span></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Dear Tom,<u></u><u></u></p></div>
<div>
<p class="MsoNormal">we regularly supply charring kilns made out of used 55 gallon drums. The kilns are based on the TLUD principle. The cost of a kiln plus an extra barrel for storing the char, is about US$100. We have sold more than 100 such kilns in India and have also trained a number of persons from India and Africa. These kilns are so easy to manufacture, that we ask the trainees to photograph and take measurements of our kiln so that they can copy the design. In many instances, people buy a kiln from us, because they feel that their local fabricator would be better able to copy the design from an actual object than from a blue print or a photograph.<u></u><u></u></p>
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<p class="MsoNormal">The advantage of using 55 gallon drums is that used drums are available at a relatively low cost, and the kilns are portable. Instead of transporting the biomass, one transports the kiln to the location where the biomass is available, and brings back only the charred material, which weighs only a third as much as the biomass. <u></u><u></u></p>
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<div>
<p class="MsoNormal">Yours<u></u><u></u></p></div>
<div>
<p style="MARGIN-BOTTOM:12pt" class="MsoNormal">A.D.Karve<u></u><u></u></p></div>
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<p class="MsoNormal">On Fri, Sep 28, 2012 at 11:42 PM, Tom Miles <<a href="mailto:tmiles@trmiles.com" target="_blank">tmiles@trmiles.com</a>> wrote:<u></u><u></u></p>
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<div>
<p class="MsoNormal">Am often asked if there is a burn barrel sized TLUD that is commercially fabricated. We’ve seen some great DIY with Doug’s Jolly Roger and others. Is anyone fabricating a 55 gal drum sized TLUD that can be used for regular biochar production? If so, what is the cost and availability?<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">Thanks<u></u><u></u></p>
<p class="MsoNormal"><span style="COLOR:#888888"> <u></u><u></u></span></p>
<p class="MsoNormal"><span style="COLOR:#888888">Tom Miles <u></u><u></u></span></p></div></div>
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<p style="MARGIN-BOTTOM:12pt" class="MsoNormal"><br><br clear="all"><br>-- <br>***<br>Dr. A.D. Karve<br>Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)<br><br><u></u><u></u></p></div></div>
</div></div><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" target="_blank">stoves@lists.bioenergylists.org</a><br>
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