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Dear AD,<br>
<br>
Thanks for clarifying this issue that I mentioned in a msg to the
list, evidently whilst you were composing this one. <br>
<br>
regards,<br>
<br>
Ronald aus der Oktoberfestlaune<br>
<br>
<br>
<div class="moz-cite-prefix">On 30.09.2012 03:37, Anand Karve wrote:<br>
</div>
<blockquote
cite="mid:CACPy7Sf8XB=revaDw7eeuykR=-u3pyvGrL5aFWcGi8FZ1BkTeA@mail.gmail.com"
type="cite">
<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 moz-do-not-send="true"
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">
<div vlink="purple" link="blue" lang="EN-US">
<div>
<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. </span></p>
<p class="MsoNormal"><span
style="FONT-FAMILY:'Calibri','sans-serif';COLOR:#1f497d;FONT-SIZE:11pt"> </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. </span></p>
<p class="MsoNormal"><span
style="FONT-FAMILY:'Calibri','sans-serif';COLOR:#1f497d;FONT-SIZE:11pt"> </span></p>
<p class="MsoNormal"><span
style="FONT-FAMILY:'Calibri','sans-serif';COLOR:#1f497d;FONT-SIZE:11pt">Tom
</span></p>
<p class="MsoNormal"><span
style="FONT-FAMILY:'Calibri','sans-serif';COLOR:#1f497d;FONT-SIZE:11pt"> </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
moz-do-not-send="true"
href="mailto:stoves-bounces@lists.bioenergylists.org"
target="_blank">stoves-bounces@lists.bioenergylists.org</a>
[mailto:<a moz-do-not-send="true"
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</span></p>
<div>
<div>
<p class="MsoNormal"> </p>
<div>
<p class="MsoNormal">Dear Tom,</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.</p>
</div>
<div>
<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. </p>
</div>
<div>
<p class="MsoNormal">Yours</p>
</div>
<div>
<p style="MARGIN-BOTTOM:12pt" class="MsoNormal">A.D.Karve</p>
</div>
<div>
<p class="MsoNormal">On Fri, Sep 28, 2012 at 11:42
PM, Tom Miles <<a moz-do-not-send="true"
href="mailto:tmiles@trmiles.com" target="_blank">tmiles@trmiles.com</a>>
wrote:</p>
<div>
<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?</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Thanks</p>
<p class="MsoNormal"><span style="COLOR:#888888"> </span></p>
<p class="MsoNormal"><span style="COLOR:#888888">Tom
Miles </span></p>
</div>
</div>
<p style="MARGIN-BOTTOM:12pt" class="MsoNormal"><br>
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-- <br>
***<br>
Dr. A.D. Karve<br>
Trustee & Founder President, Appropriate Rural
Technology Institute (ARTI)<br>
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<br>
-- <br>
***<br>
Dr. A.D. Karve<br>
Trustee & Founder President, Appropriate Rural Technology
Institute (ARTI)<br>
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