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<DIV><FONT size=2 face=Arial>Rebecca has primarily worked with fired clay rocket
stoves.</FONT></DIV>
<DIV><FONT size=2 face=Arial>We were discussing the use of various parts of the
cocnut as alternative fuels</FONT></DIV>
<DIV><FONT size=2 face=Arial>In the Philipines they have a fairly well developen
market for various cocnut products as fuel</FONT></DIV>
<DIV><FONT size=2 face=Arial>In particulat they have wide spread fired clay
charcoal burners. She had commented on the use of primative</FONT></DIV>
<DIV><FONT size=2 face=Arial>pit kilns and their pollution/ I pointed her toward
Amy Smiths work hopefully to reduce some polluion</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2 face=Arial>Moving into retorts or TLUD unit may be in the
future but I beleive for now she is going to be expanding her</FONT></DIV>
<DIV><FONT size=2 face=Arial>rocket stove capabilities. I am glad to see other
picking up on Rebacca's travails</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>I am not much into charcoal until I can find a
effective use for its heat and smoke, maybe a copra dryer.</FONT></DIV>
<DIV><FONT size=2 face=Arial>. </FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2 face=Arial>Michael </FONT></DIV>
<DIV><FONT size=2 face=Arial>Marshall Islands</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>--- Original Message ----- </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=terra-matricula@hotmail.com
href="mailto:terra-matricula@hotmail.com">Otto Formo</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=stoves@lists.bioenergylists.org
href="mailto:stoves@lists.bioenergylists.org">Stoves Bioenergylist</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Cc:</B> <A title=jonnygms@gmail.com
href="mailto:jonnygms@gmail.com">Jon Anderson</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, June 16, 2013 10:13
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [Stoves] coconut usage in
improved stoves</DIV>
<DIV><BR></DIV>
<DIV dir=ltr>Rebecca,<BR>Haveing tested briquettes made out of rice husks and
sawdust in a gasifier unit (Natural Draft), we experienced the same challenge
to ignite and creating the pyrolytic front.<BR> <BR>I would suggest you
create an upper layer of woodchips, on top of your coconutshells, to create
that pyrolytic front more easily and ignite the chips, using
woodshaveings or even gras, as a starter. <BR> <BR>REMEMBER: <BR>Do
not pour liquid materials, like kerosine , directly into the fueling
Chamber!<BR>This will distrub the pyrolytic process and reduce the outcome of
your charcoal or biochar production.<BR> <BR>Good
Luck.<BR> <BR>Thanks<BR> <BR>Otto<BR>
<DIV>
<HR id=stopSpelling>
Date: Sat, 15 Jun 2013 23:03:35 -0500<BR>From: psanders@ilstu.edu<BR>To:
stoves@lists.bioenergylists.org<BR>CC: jonnygms@gmail.com<BR>Subject: Re:
[Stoves] coconut usage in improved stoves<BR><BR>
<DIV class=ecxmoz-cite-prefix>Rebecca,<BR><BR>To make your oling (coconut
shell charcoal), the TLUD technology is highly appropriate. The
density of the shell pieces makes them slightly difficult to initially light
(the same as with densified wood pellets). But just make a
slightly larger and longer burning "starter fire" to get the initial layer of
pyrolyzing biomass that becomes the pyrolytic front that migrates slowly down
through the column of shell pieces.<BR><BR>How familiar are you with the TLUD
technology?<BR><BR>Paul<BR><PRE class=ecxmoz-signature>Paul S. Anderson, PhD aka "Dr TLUD"
Email: <A class=ecxmoz-txt-link-abbreviated href="mailto:psanders@ilstu.edu">psanders@ilstu.edu</A> Skype: paultlud Phone: +1-309-452-7072
Website: <A class=ecxmoz-txt-link-abbreviated href="http://www.drtlud.com" target=_blank>www.drtlud.com</A></PRE>On
6/15/2013 12:48 AM, Rebecca A. Vermeer wrote:<BR></DIV>
<BLOCKQUOTE cite=mid:B62FC8A13BAA430E939760624F62E439@RebeccaHP>
<STYLE><!--
--></STYLE>
<DIV dir=ltr>
<DIV style="FONT-FAMILY: 'Calibri'; COLOR: rgb(0,0,0); FONT-SIZE: 12pt">
<DIV>Michael,</DIV>
<DIV>I am so pleased to meet an ex copra maker and one who knows the coconut
so well!! So I presume you know very well the native “tuba”
drink from the flower shoot? Do take a look at my photo album below
:</DIV>
<DIV> </DIV>
<P style="LINE-HEIGHT: 13pt; MARGIN: 0cm 0cm 10pt" class=ecxMsoNormal><A
href="https://plus.google.com/photos/113101643783889350444/albums/5889511496280160113/5889528293743607618?pid=5889528293743607618&oid=113101643783889350444"
target=_blank><FONT style="FONT-SIZE: 11pt"
color=#0000ff>https://plus.google.com/photos/113101643783889350444/albums/5889511496280160113/5889528293743607618?pid=5889528293743607618&oid=113101643783889350444</FONT></A></P>
<DIV>– you will see the coconut husk (bucong) strung together; your
preferred frond mid ribs (palwa) and the charcoal from coconut shells
(inside sacks and plastic bags). The charcoal makers are my biggest
competitors for the bucong I need to fire my eco-kalans. Take a close
look at photo #37 -the small pottery to the right which looks like a vase
uses “oling” or coconut shell charcoal; to the left you will find the
big traditional kalans which can use firewood, “palwa” or
“bucong”. The “bucong” is the fuel of the poorest and the “bingka” or
rice cake bakers; the “palwa” is bought by the not so poor;
firewood by the middleclass; and the “oling “ is bought by the many
food vendors (like “tocinos” – similar to sate in Malaysia or Indonesia,
steamed meat buns, boiling water for disinfecting spoons & forks....)
and households for broiling fish and meats (sinugba).</DIV>
<DIV> </DIV>
<DIV>Oling is made by burning coconut shellls in a hole in the ground –a
smoky process with a lot of energy going to waste. Do you know a
better way??</DIV>
<DIV> </DIV>
<DIV>Rebecca </DIV>
<DIV>
<DIV
style="FONT: 10pt tahoma; font-size-adjust: none; font-stretch: normal">
<DIV style="BACKGROUND: rgb(245,245,245)">
<DIV><B>From:</B> <A title=mtrevor@ntamar.net
href="mailto:mtrevor@ntamar.net">mtrevor</A> </DIV>
<DIV><B>Sent:</B> Friday, June 14, 2013 12:31 PM</DIV>
<DIV><B>To:</B> <A title=stoves@lists.bioenergylists.org
href="mailto:stoves@lists.bioenergylists.org">Discussion of biomass cooking
stoves</A> </DIV>
<DIV><B>Subject:</B> [Stoves] coconut usage in improved
stoves</DIV></DIV></DIV>
<DIV> </DIV></DIV>
<DIV
style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: rgb(0,0,0); FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none">
<DIV><FONT size=2 face=Arial>Dear <FONT size=3
face="Times New Roman">Rebecca </FONT></FONT></DIV>
<DIV><FONT size=2 face=Arial>As an ex copra maker I have met the coconut and
know it well.</FONT></DIV>
<DIV>
<DIV><FONT size=2 face=Arial>I have made copra by the tons. <FONT size=2
face=Arial>I know coconut husk and flower shoot and fronds and shell </FONT>
<DIV><FONT size=2 face=Arial>Here the husks are generally burned in 3/4/5
wedge sized pieces. After the nuts are husked
<DIV><FONT size=2 face=Arial>women haul them in from the husking areas and
sun dry them in the yards. It is exhausting back breaking work</FONT></DIV>
<DIV><FONT size=2 face=Arial>Husk is a pretty good mosquito chaser and its
low burn temperature make it very good for cooking rice.</FONT></DIV>
<DIV>BUT THE SMOKE!!!!</DIV>
<DIV> </DIV>
<DIV><FONT size=2 face=Arial>I would like to see a retort system running
heat to a copra drier to produce better copra with out bugs and
mold</FONT></DIV>
<DIV><FONT size=2 face=Arial>with </FONT><FONT size=2 face=Arial>coconut
shell charcoal for sale as a by product.
<DIV><FONT size=2 face=Arial>In more recent years the has been some switch
to your "bucong" of course this mean no more shell left over.
</FONT> </DIV></FONT><FONT size=2 face=Arial>Splitting husk with shell
in to multiple little wedges would </FONT><FONT size=2 face=Arial>be
considered a lot of additional work. Coconut husk it tough stuff.
</FONT><FONT size=2 face=Arial>I find slicing off the leaflets in the field
and </FONT><FONT size=2 face=Arial>using the coconut frond mid rib chopped
into segments and split length wise </FONT><FONT size=2 face=Arial>easier.
The resulting stick like </FONT><FONT size=2 face=Arial>pieces feed into a
rocket stove easier. The f</FONT><FONT size=2 face=Arial>lower spaths are
superb rocket stove fuel.</FONT></DIV></FONT> </DIV>
<DIV> </DIV></FONT></DIV>
<DIV><FONT size=2 face=Arial>Michael</FONT></DIV>
<DIV><FONT size=2 face=Arial>Marshall Islands</FONT></DIV>
<DIV> </DIV>
<DIV>----- Original Message ----- </DIV></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: rgb(0,0,0) 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px"
dir=ltr>
<DIV
style="FONT: 10pt arial; BACKGROUND: rgb(228,228,228); font-size-adjust: none; font-stretch: normal"><B>From:</B>
<A title=ravermeer@telus.net href="mailto:ravermeer@telus.net">Rebecca A.
Vermeer</A> </DIV>
<DIV
style="FONT: 10pt arial; font-size-adjust: none; font-stretch: normal"><B>To:</B>
; <A title=mtrevor@ntamar.net href="mailto:mtrevor@ntamar.net">Michael N.
Trevor</A> </DIV>
<DIV
style="FONT: 10pt arial; font-size-adjust: none; font-stretch: normal"><B>Cc:</B>
<A title=ravermeer@telus.net href="mailto:ravermeer@telus.net">Rebecca A.
Vermeer</A> ; <A title=jonnygms@gmail.com
href="mailto:jonnygms@gmail.com">Jon Anderson</A> </DIV>
<DIV
style="FONT: 10pt arial; font-size-adjust: none; font-stretch: normal"><B>Sent:</B>
Saturday, June 15, 2013 6:30 AM</DIV>
<DIV
style="FONT: 10pt arial; font-size-adjust: none; font-stretch: normal"><B>Subject:</B>
Re: [Stoves] : Re: Insulation and stove life</DIV>
<DIV> </DIV>
<DIV dir=ltr>
<DIV style="FONT-FAMILY: 'Calibri'; COLOR: rgb(0,0,0); FONT-SIZE: 12pt">
<DIV>Hello Michael,</DIV>
<DIV>Thank you for your suggestions and question. My comments are as
follows:</DIV>
<DIV>1. I have considered experimenting with high silicate ash from
the foot of Mt. Canlaon, in northern part of Negros Oriental.
The ash is free and my partners with the 11th IB of the Philippine Army in
Negros Or. and the Memorial Elementary School in Canlaon would bring the
ash to Dumaguete City. If this does not work, I’ll follow up on the
TLUD route.</DIV>
<DIV> </DIV>
<DIV>2. Jon & Flip Anderson (Aprovecho volunteers) have shown me
their work with insulating bricks to form the combustion chamber in Timor
Leste. The insulating bricks are weak, fragile bricks which require
a strong, heavy duty shell exterior (e.g. cement)to protect the combustion
chamber and to support big cooking pots. I still think that tiny
insulating “clay marbles” between the heavy duty, all clay, fired kalan
and combustion chamber is the most practical way to pursue. I am
hopeful Rolf and ECOWORXX can find a way to produce these insulating clay
marbles or pebbles cheaply.</DIV>
<DIV> </DIV>
<DIV>3. For those who have not seen a coconut husk – it is a by-product of
COPRA (mature coconut meat) production. Every 3 months, the coconuts
are harvested, cut into 2 halves, and meat is extracted and dried to make
copra. The husk and inside shell is dried in roof-covered
sheds or storage buildings to make “bucong” – the fuel we use to fire the
eco-kalans to 900 degrees Celsius. To use the “bucong” or
coconut husk with shell for fuel in a rocket stove, it is requires
chopping the husk with a machete into narrow wedges (like a cantaloupe)
and a combustion chamber opening as wide and as high (5.5”x5.5”) as
that of the eco-kalan.</DIV>
<DIV> </DIV>
<DIV
style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: rgb(0,0,0); FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none">
<DIV
style="FONT: 10pt tahoma; font-size-adjust: none; font-stretch: normal">
<DIV><FONT size=3 face=Calibri>Rebecca Vermeer</FONT></DIV>
<DIV><FONT size=3 face=Calibri>Eco-Kalan Project in the
Philippines</FONT></DIV>
<DIV><FONT size=3 face=Calibri>British Columbia, Canada</FONT></DIV>
<DIV> </DIV>
<DIV style="BACKGROUND: rgb(245,245,245)">
<DIV><B>From:</B> <A title=mtrevor@ntamar.net
href="mailto:mtrevor@ntamar.net">mtrevor</A> </DIV>
<DIV><B>Sent:</B> Friday, June 14, 2013 1:44 AM</DIV>
<DIV><B>To:</B> <A title=stoves@lists.bioenergylists.org
href="mailto:stoves@lists.bioenergylists.org">Discussion of biomass
cooking stoves</A> </DIV>
<DIV><B>Subject:</B> Re: [Stoves] : Re: Insulation and stove
life</DIV></DIV></DIV>
<DIV> </DIV></DIV>
<DIV
style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: rgb(0,0,0); FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none">
<DIV><FONT size=2 face=Arial>Rebecca </FONT></DIV>
<DIV><FONT size=2 face=Arial>Why not gassify rice hulls in a TLUD and then
use the low cristobalite "tough" high silicate ash to mix your insulation.
</FONT></DIV>
<DIV><FONT size=2 face=Arial>Perhaps take a lead fom Aprovecho's play book
and fire your liner in multiple wedge shaped pieces negating the need to
break</FONT></DIV>
<DIV><FONT size=2 face=Arial>things up. </FONT></DIV>
<DIV> </DIV>
<DIV>How do to "prepare" your coconut husks for use in a rocket stove?
</DIV>
<DIV> </DIV>
<DIV>Michael N Trevor</DIV>
<DIV>Marshall Islands</DIV>
<BLOCKQUOTE
style="BORDER-LEFT: rgb(0,0,0) 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px"
dir=ltr>
<DIV
style="FONT: 10pt arial; BACKGROUND: rgb(228,228,228); font-size-adjust: none; font-stretch: normal"><B>From:</B>
<A title=ravermeer@telus.net href="mailto:ravermeer@telus.net">Rebecca
A. Vermeer</A> </DIV>
<DIV
style="FONT: 10pt arial; font-size-adjust: none; font-stretch: normal"><B>To:</B>
<A title=paul.olivier@esrla.com
href="mailto:paul.olivier@esrla.com">Paul Olivier</A> </DIV>
<DIV
style="FONT: 10pt arial; font-size-adjust: none; font-stretch: normal"><B>Cc:</B>
<A title=jonnygms@gmail.com href="mailto:jonnygms@gmail.com">Jon
Anderson</A> ; <A title=stoves@lists.bioenergylists.org
href="mailto:stoves@lists.bioenergylists.org">stoves@lists.bioenergylists.org</A>
</DIV>
<DIV
style="FONT: 10pt arial; font-size-adjust: none; font-stretch: normal"><B>Sent:</B>
Friday, June 14, 2013 8:25 PM</DIV>
<DIV
style="FONT: 10pt arial; font-size-adjust: none; font-stretch: normal"><B>Subject:</B>
Re: [Stoves] : Re: Insulation and stove life</DIV>
<DIV> </DIV>
<DIV dir=ltr>
<DIV style="FONT-FAMILY: 'Calibri'; COLOR: rgb(0,0,0); FONT-SIZE: 12pt">
<DIV>Paul,</DIV>
<DIV>I currently use wood ash as insulating material between the
kalan and combustion chamber of the eco-kalan (a rocket stove using
wood, charcoal, coconut husk, shell, fronds and other parts of the
coconut tree). The eco-kalan uses 75-85% less firewood and
therefore a lot less ash is produced compared to traditional kalans and
other traditional cookstoves in Negros Oriental,
Philippines. A shortage in supply of ash is one fact
<DIV> </DIV>or which affects sales of
eco-kalan. I have considered making an
insulating material using a 50-50 mix by volume of rice hull
& clay in the form of pellets or bricks which would be broken to
pieces after firing. I would fire the pellets or the bricks along
with the eco-kalans up to 900 degrees Celsius. Will there be
significant formation of cristobalite under these conditions?
Would handling the fired pellets or the breaking of the bricks be a
health hazard? Thanks,</DIV>
<DIV> </DIV>
<DIV>Rebecca Vermeer</DIV>
<DIV
style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: rgb(0,0,0); FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none">
<DIV
style="FONT: 10pt tahoma; font-size-adjust: none; font-stretch: normal">
<DIV> </DIV>
<DIV style="BACKGROUND: rgb(245,245,245)">
<DIV><B>From:</B> <A title=paul.olivier@esrla.com
href="mailto:paul.olivier@esrla.com">Paul Olivier</A> </DIV>
<DIV><B>Sent:</B> Friday, June 14, 2013 12:07 AM</DIV>
<DIV><B>To:</B> <A title=ravermeer@telus.net
href="mailto:ravermeer@telus.net">Rebecca A. Vermeer</A> </DIV>
<DIV><B>Cc:</B> <A title=jonnygms@gmail.com
href="mailto:jonnygms@gmail.com">Jon Anderson</A> ; <A
title=stoves@lists.bioenergylists.org
href="mailto:stoves@lists.bioenergylists.org">stoves@lists.bioenergylists.org</A>
; <A title=larryw@gotsky.com href="mailto:larryw@gotsky.com">larry
winiarski</A> </DIV>
<DIV><B>Subject:</B> Re: Fw: [Stoves] : Re: Insulation and stove
life</DIV></DIV></DIV>
<DIV> </DIV></DIV>
<DIV
style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: rgb(0,0,0); FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none">Rebecca,<BR>If
we directly burn river hulls, there should be a lot of cristobalite
formed. If we gasify, this problem should be minimized, provided
channeling does not occur. Also there might be cristobalite in the
particulate matter in the combustion gases. With rice hull pellets in a
TLUD we have a lot less channeling, and a lot less particulate
matter. Therefore the rice hull pellet becomes an attractive fuel for
these and many other reasons.<BR>Thanks.<BR>Paul Olivier<BR>
<DIV class=ecxgmail_quote>On Jun 14, 2013 1:44 PM, "Rebecca A. Vermeer"
<<A href="mailto:ravermeer@telus.net">ravermeer@telus.net</A>>
wrote:<BR>
<BLOCKQUOTE
style="BORDER-LEFT: rgb(204,204,204) 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex"
class=ecxgmail_quote>
<DIV dir=ltr>
<DIV dir=ltr>
<DIV style="FONT-FAMILY: 'Calibri'; FONT-SIZE: 12pt">
<DIV>Hello Paul,</DIV>
<DIV>Larry just told me that the silica content of rice hull ash is
over 90%. At the ETHOS 2013 Conference, I saw a TURBO stove
developed in the Philippines which used rice hull for fuel.
Given your comment below regarding cristobalite “which is a nasty
carcinogen” and severely hazardous to human health (see link below),
would you recommend the use of rice hull as a household fuel for
cookstoves? </DIV>
<DIV> </DIV>
<DIV>Rebecca Vermeer</DIV>
<DIV> </DIV>
<DIV>CRISTOBALITE LINK:</DIV>
<DIV><A title=http://nj.gov/health/eoh/rtkweb/documents/fs/1657.pdf
href="http://nj.gov/health/eoh/rtkweb/documents/fs/1657.pdf"
target=_blank>http://nj.gov/health/eoh/rtkweb/documents/fs/1657.pdf</A></DIV>
<DIV></DIV>
<DIV>
<DIV
style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none"> </DIV></DIV>
<DIV>
<DIV
style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none"><B>From:</B>
<A title=paul.olivier@esrla.com href="mailto:paul.olivier@esrla.com"
target=_blank>Paul Olivier</A> </DIV>
<DIV
style="FONT: 10pt tahoma; font-size-adjust: none; font-stretch: normal">
<DIV style="BACKGROUND: rgb(245,245,245)">
<DIV><B>Sent:</B> Wednesday, June 12, 2013 12:01 AM</DIV>
<DIV><B>To:</B> <A title=stoves@lists.bioenergylists.org
href="mailto:stoves@lists.bioenergylists.org" target=_blank>Discussion
of biomass cooking stoves</A> </DIV>
<DIV><B>Subject:</B> Re: [Stoves] : Re: Insulation and stove
life</DIV></DIV></DIV>
<DIV> </DIV></DIV>
<DIV
style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none">
<DIV dir=ltr>
<DIV>
<DIV>
<DIV>
<DIV>Paal,<BR><BR></DIV>One thing I look for on my burner is that all
burner holes support a flame throughout the process. If channeling
occurs during the process or if char is being burned as the process
comes to a close, then one can see burner holes that do not support a
flame. This means that CO2 is being discharged from the burner holes,
and of course CO2 does not burn. When CO2 is formed, this represents a
big inefficiency, since combustion takes place far below the pot. When
this happens the sides of the reactor can easily turn red hot and
melt. I do not know how it is possible to spot the presence of CO2 if
the top of the reactor stays open and does not have a lid with burner
holes.<BR><BR></DIV>If one turns up the fan a bit too high resulting
in channeling, it can happen that only a few holes (among a total of
80 in my case) do not support a flame. If I turn the fan down a bit
and shake the reactor, this problem is immediately corrected. Also the
effect of the presence of CO2 can be spotted by the cook in another
way. The distribution of heat to the pan is not even.<BR><BR></DIV>
<DIV>Also many of the positive characteristics of biochar are lost
when biochar is combusted and is reduced to ash. The combustion of
biomass and biochar takes place when channeling occurs, and the
combustion of biochar takes place if the fan is not turned off at the
end of the process. Rice hull ash and rice hill biochar are not at all
the same thing when it comes to growing plants. <FONT
color=#ff0000>Also rice hull ash can easily contain cristobalite,
which is a nasty carcinogen. Under ordinary conditions, no farmer
should be handling this stuff.<BR></FONT></DIV>
<DIV> </DIV>Thanks.<BR></DIV>Paul<BR>
<DIV class=ecxgmail_extra><BR><BR>
<DIV class=ecxgmail_quote>On Wed, Jun 12, 2013 at 1:06 PM, Paal
Wendelbo <SPAN dir=ltr><<A href="mailto:paaw@online.no"
target=_blank>paaw@online.no</A>></SPAN> wrote:<BR>
<BLOCKQUOTE
style="BORDER-LEFT: rgb(204,204,204) 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex"
class=ecxgmail_quote>
<DIV dir=ltr>
<DIV dir=ltr>
<DIV style="FONT-FAMILY: 'Calibri'; FONT-SIZE: 12pt">
<P style="LINE-HEIGHT: 13pt; MARGIN: 0cm 0cm 10pt"
class=ecxMsoNormal><SPAN lang=EN-US><FONT
style="FONT-SIZE: 11pt">Ron</FONT></SPAN></P>
<P style="LINE-HEIGHT: 13pt; MARGIN: 0cm 0cm 10pt"
class=ecxMsoNormal><SPAN lang=EN-US><FONT style="FONT-SIZE: 11pt">By
end of flame the color of the char is red to yellow, that indicate a
temperature of 700 to 800 ˚C and when there is no smoke, complete
combustion has taken place. Is that not good for
biochar?</FONT></SPAN></P>
<P style="LINE-HEIGHT: 13pt; MARGIN: 0cm 0cm 10pt"
class=ecxMsoNormal><SPAN lang=EN-US><FONT
style="FONT-SIZE: 11pt">Regards Paal
W</FONT></SPAN></P></DIV></DIV></DIV><BR>_______________________________________________<BR>Stoves
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clear=all><BR>-- <BR>Paul A. Olivier PhD<BR>26/5 Phu Dong Thien
Vuong<BR>Dalat<BR>Vietnam<BR><BR>Louisiana telephone: 1-337-447-4124
(rings Vietnam)<BR>Mobile: 090-694-1573 (in Vietnam)<BR>Skype address:
Xpolivier<BR><A href="http://www.esrla.com/"
target=_blank>http://www.esrla.com/</A> </DIV></DIV><BR>
<HR>
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<HR>
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<HR>
<P align=left>No virus found in this message.<BR>Checked by AVG - <A
href="http://www.avg.com" target=_blank>www.avg.com</A><BR>Version:
2013.0.2904 / Virus Database: 3199/6406 - Release Date:
06/12/13</P></BLOCKQUOTE><BR>
<HR>
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<P align=left>No virus found in this message.<BR>Checked by AVG - <A
href="http://www.avg.com" target=_blank>www.avg.com</A><BR>Version:
2013.0.2904 / Virus Database: 3199/6406 - Release Date:
06/12/13</P></BLOCKQUOTE><BR>
<HR>
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<FIELDSET class=ecxmimeAttachmentHeader></FIELDSET> <BR><PRE>_______________________________________________
Stoves mailing list
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<A class=ecxmoz-txt-link-freetext href="http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org" target=_blank>http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org</A>
for more Biomass Cooking Stoves, News and Information see our web site:
<A class=ecxmoz-txt-link-freetext href="http://stoves.bioenergylists.org/" target=_blank>http://stoves.bioenergylists.org/</A>
</PRE></BLOCKQUOTE><BR><BR>_______________________________________________
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<P>
<HR>
<P></P>_______________________________________________<BR>Stoves mailing
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<P>
<HR>
<P></P><A></A>
<P align=left color="#000000" avgcert??>No virus found in this
message.<BR>Checked by AVG - <A
href="http://www.avg.com">www.avg.com</A><BR>Version: 2013.0.2904 / Virus
Database: 3199/6413 - Release Date: 06/15/13</P></BLOCKQUOTE></BODY></HTML>