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<DIV><FONT size=2 face=Arial>Gee it looks like I have piqued a little interest
here. Actually most know coconut waste has long been an interest of
mine.</FONT></DIV>
<DIV><FONT size=2 face=Arial>There is a volumonus amount of it and invarious
form can be rather obnoxious. Tradational uses in lots of
place</FONT></DIV>
<DIV><FONT size=2 face=Arial>are well developed. However the usages are also
some of the exact issues we are attacking especially </FONT></DIV>
<DIV><FONT size=2 face=Arial>smoke smoke and smoke. Interestingly enough there
are even studies the indicate composted materials from</FONT></DIV>
<DIV><FONT size=2 face=Arial>demonstrate allopathy to other plants as
well. </FONT><FONT size=2 face=Arial>With the amount of coconuts in the
Phillipines if this renewed </FONT></DIV>
<DIV><FONT size=2 face=Arial>interest can help Rebecca it can have huge
implications. She and I are interested in all aspects of coconut
stuff</FONT></DIV>
<DIV><FONT size=2 face=Arial>husk shell fronds flower spaths and as she pointed
out even "Tuba" grin</FONT></DIV>
<DIV><FONT size=2 face=Arial>Michael </FONT></DIV>
<DIV><FONT size=2 face=Arial>Majuro</FONT></DIV>
<DIV><FONT size=2 face=Arial>Marshall Islands</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px"
dir=ltr>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=crispinpigott@gmail.com href="mailto:crispinpigott@gmail.com">Crispin
Pemberton-Pigott</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=stoves@lists.bioenergylists.org
href="mailto:stoves@lists.bioenergylists.org">'Discussion of biomass cooking
stoves'</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, June 17, 2013 6:06 AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [Stoves] coconut usage in
improved stoves continued</DIV>
<DIV><BR></DIV>
<DIV class=WordSection1>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US">Dear
All<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US">I
have spent some time trying to burn whole coconut husks – some may remember
the reported experiments some time in 2003.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US"><o:p> </o:p></SPAN></P>
<DIV>
<DIV
style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0mm; PADDING-LEFT: 0mm; PADDING-RIGHT: 0mm; BORDER-TOP: #e1e1e1 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US">The
motivation was the fact that Mozambique has a huge amount of the material
lying around and while it is used for a domestic fuel, it is pretty awful. It
is heaped around pots and burned with a great deal of
smoke.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US">I
was in Swaziland at the time (where New Dawn Engineering is located) and was
developing the Vesto. A number of experiments were conducted using a Tsotso
stove which can burn just about anything. The observations were that the husks
can burn very cleanly (visibly clean, at least) if it is burning in a staged
process. While the fuel can hold considerable moisture, once it is heated to
the point of getting rid of the steam, it is able to burn well, producing a
white smoke that supports combustion if given preheated secondary
air.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US">In
order to sustain a burn it is essential that the fuel be dried enough. It is
likely that any practical device will have a method of supply new fuel
continuously or in batches, perhaps pushed in from the side or the bottom.
Preheating the primary air is essential because of the retained
moisture.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US">Because
the ‘fuel particles’ are so large, the device will have to be large. If it is
a TLUD or downdraft (BLDD) stove it implies that he chamber will be >6
times the particle size. If the husks are not cut into pieces that implies a
diameter of perhaps 60-75 cm. I guess the power level would 10-20 kW. To be
useful the things should perhaps be 1.5-2 metres high.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US">At
that size, it could be used to make soft charcoal on a reasonable scale for
briquetting. Given the vast local market for charcoal in Mozambique it might
make sense, all things considered.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US">Regards<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US">Crispin<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; FONT-SIZE: 11pt"
lang=EN-US><o:p> </o:p></SPAN></P></DIV></DIV>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<DIV>
<P class=MsoNormal>Paul<o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal><o:p> </o:p></P></DIV>
<DIV>
<P class=MsoNormal>What would a TLUD sized for coconut husks look like? Can
you suggest dimensions and a fuel size?<o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal><o:p> </o:p></P></DIV>
<DIV>
<P class=MsoNormal>Tom<o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal><BR><BR><o:p></o:p></P></DIV></DIV>
<P>
<HR>
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<P align=left color="#000000" avgcert??>No virus found in this
message.<BR>Checked by AVG - <A
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