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<DIV><FONT size=2 face=Arial>Paul,</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>I suggest that you change the subject line on your
contributions to reflect your interests. I am not
concerned with it hurting my discussion, because it keeps bringing
attention back to the excellent qualities of our Wonderwerk stove. I
am concerned that you may not be getting responses from all those interested in
your topic because they don't recognize your topic under a
different subject line.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Respectfully,</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Kirk H.</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">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=paul.medwell@adelaide.edu.au
href="mailto:paul.medwell@adelaide.edu.au">Paul Medwell</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> Saturday, September 03, 2016 3:57
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [Stoves] Hypothesis for
Wonderwerk TLUD-ND</DIV>
<DIV><BR></DIV>Once again, great suggestion Philip. Unfortunately, I live in a
nanny state...dichloromethane or methanol are considered "too hazardous", so I
reckon pyridine (no matter how effective) is probably off the cards. Anyway,
we have colleagues that do this stuff all the time, so we'll sort something
out.
<DIV><BR>
<DIV><BR></DIV></DIV><BR><BR><BR>-------- Original message --------<BR>From:
Philip Lloyd <<A href="mailto:plloyd@mweb.co.za">plloyd@mweb.co.za</A>>
<BR>Date: 03/09/2016 17:03 (GMT+09:30) <BR>To: 'Discussion of biomass cooking
stoves' <stoves@lists.bioenergylists.org> <BR>Subject: Re: [Stoves]
Hypothesis for Wonderwerk TLUD-ND <BR><BR><BR>
<DIV>
<DIV class=WordSection1>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">As
to solvents, try pyridine. As I recall that takes up everything but the really
low-hydrogen polyaromatics.</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">Philip</SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"></SPAN> </P>
<DIV>
<DIV
style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<P class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: windowtext; FONT-SIZE: 10pt"
lang=EN-US>From:</SPAN></B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: windowtext; FONT-SIZE: 10pt"
lang=EN-US> Stoves [mailto:stoves-bounces@lists.bioenergylists.org] <B>On
Behalf Of </B>Paul Medwell<BR><B>Sent:</B> Friday, September 2, 2016 9:22
PM<BR><B>To:</B> Discussion of biomass cooking stoves<BR><B>Subject:</B> Re:
[Stoves] Hypothesis for Wonderwerk TLUD-ND</SPAN></P></DIV></DIV>
<P class=MsoNormal> </P>
<P style="MARGIN-BOTTOM: 12pt" class=MsoNormal>Dear Philip,<BR><BR>Thanks for
another great suggestion.<BR><BR>This is also something that is planned. As
part of an unrelated project we have been looking at this: we are still in the
process of finding a solvent that has a collection yield, that doesn't
interfere with (or gives an interference profile that we can correct for) and
that OH&S will let us have. Fortunately, for the cookstove work there are
fewer constraints than the other project (which is limited to sampling
extremely low flowrates). We'll find a solution and share
it.<BR><BR>Cheers,<BR>Paul</P>
<DIV>
<P class=MsoNormal>On 2/09/2016 11:34 PM, Philip Lloyd wrote:</P></DIV>
<BLOCKQUOTE style="MARGIN-TOP: 5pt; MARGIN-BOTTOM: 5pt">
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">I
think you will find dissolving them in a fairly pure solvent and doing an
infra-red spectrum will tell you a lot.</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">Prof
Philip Lloyd</SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Energy
Institute, CPUT</SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">SARETEC,
Sachs Circle</SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Bellville</SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Tel
021 959 4323</SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Cell
083 441 5247</SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">PA
Nadia 021 959 4330</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"></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"></SPAN> </P>
<DIV>
<DIV
style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<P class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: windowtext; FONT-SIZE: 10pt"
lang=EN-US>From:</SPAN></B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: windowtext; FONT-SIZE: 10pt"
lang=EN-US> Stoves [<A
href="mailto:stoves-bounces@lists.bioenergylists.org">mailto:stoves-bounces@lists.bioenergylists.org</A>]
<B>On Behalf Of </B>Paul Medwell<BR><B>Sent:</B> Friday, September 2, 2016
4:12 AM<BR><B>To:</B> Discussion of biomass cooking
stoves<BR><B>Subject:</B> Re: [Stoves] Hypothesis for Wonderwerk
TLUD-ND</SPAN></P></DIV></DIV>
<P class=MsoNormal> </P>
<P style="MARGIN-BOTTOM: 12pt" class=MsoNormal>Dear Kirk, Paul and
all,<BR><BR>Kirk: thanks for circulating your hypothesis. This seems
well-founded.<BR>Paul: measuring long-chain hydrocarbons / tars is part of
the planned project of PhD student Thomas Kirch.<BR><BR>The intention is to
measure the tars fairly soon. The catch is that our existing micro-GC isn't
suitable for this, and finding someone who is willing to put our tars in
their GC-MS is proving difficult. Until we get funds to buy our own, any
suggestions for other ways of characterising the
tars?<BR><BR>Cheers,<BR>Paul</P>
<DIV>
<P class=MsoNormal>On 1/09/2016 10:53 PM, Paul Anderson wrote:</P></DIV>
<BLOCKQUOTE style="MARGIN-TOP: 5pt; MARGIN-BOTTOM: 5pt">
<P class=MsoNormal>Kirk,<BR><BR>The Wonderwerk Man has again done
wonderful work!!!! Stove Summit, Stove Camp, assisting Dennis
(who then won the Cat Pee award), and cooking with Flip. It is
always a pleasure being with you.<BR><BR>The hypothesis (explanatory
document) is well done. All serious stove researchers should read
it. Where is this document being placed for public
access. I offer to place it at the
drtlud.com website. (Send your reply to James Schoner
directly or via the Stoves Listserv; I will be in Mexico for the next 13
days).<BR><BR>Hypotheses are statements that ask to be confirmed.
The folks with the scientific equipment can now step in and see if the
long-chain hydrocarbons are indeed breaking up when and where indicated by
the hypothesis. Good if that could be soon, but I expect not.
In the meantime, the excellent low emissions (which are facts, not
hypotheses) speak for themselves.<BR><BR>The needed scientific studies
would help answer several questions such as whether all three steps
(levels) are needed to accomplish the low emissions and the ability for
turn-down to low fire.<BR><BR>About turndown such as when cooking in
Flip's oven, a different solution is to have a second gasifier reactor
(fuel chamber) that has a smaller diameter.<BR><BR>Keep up the good
work!! (werk)<BR><BR>Paul<BR><BR><BR></P><PRE>Doc / Dr TLUD / Prof. Paul S. Anderson, PhD</PRE><PRE>Email: <A href="mailto:psanders@ilstu.edu">psanders@ilstu.edu</A></PRE><PRE>Skype: paultlud Phone: +1-309-452-7072</PRE><PRE>Website: <A href="http://www.drtlud.com">www.drtlud.com</A></PRE>
<DIV>
<P class=MsoNormal>On 9/1/2016 12:34 AM, kgharris wrote:</P></DIV>
<BLOCKQUOTE style="MARGIN-TOP: 5pt; MARGIN-BOTTOM: 5pt">
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt">All,</SPAN></P></DIV>
<DIV>
<P class=MsoNormal> </P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt">Talking
about stoves at the InStove Stove Summit and Aprovecho Stove
Camp made me think through the workings of our
Wonderwerk TLUD-ND. I needed to create a working
hypothesis of why it burns as cleanly as it does. Attached
is the hypothesis. It may not be completely correct, but it
does provide an explaination, or at least a place to start an
explaination. There is a lot that I don't know about
this burning method and a lot of work left to be
done.</SPAN></P></DIV>
<DIV>
<P class=MsoNormal> </P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt">At Stove
Camp, Sam Bentson, Aprovecho's lab engineer offered to help
me probe into the pressure variations in the
stove. I was sadly involved with too many things to take him
up on it. My loss! What I did do was to support Dennis,
a visiting student from China, in his development of a wok support with
skirt and chimney. </SPAN> <SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt">He tested it
on top of the latest Wonderwerk TLUD-ND stove and the results were
impressive. He made several adjustments to the dimensions which
seemed to improve its performance even more. He required only high
power and no turn-down.</SPAN></P></DIV>
<DIV>
<P class=MsoNormal> </P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt">After Stove
Camp I visited with Jon and Flip Anderson. We put an older
Wonderwerk TLUD-ND under one of their clay ovens, and baked a
cake. It required two fuel (vertically arranged split sticks of an
unknown variety of hardwood) loadings of the stove, the first to heat
the oven and give about 30 minutes of baking and the second finished the
1 hour baking time. This showed the need for turn-down capability
for oven baking. The latest Wonderwerk stove, which I had
left at Aprovecho, would very likely have done it with only one
load of fuel, because of better turn-down and more efficient
burning.</SPAN></P></DIV>
<DIV>
<P class=MsoNormal> </P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt">I hope you
enjoy looking through the hypothesis.</SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt">Kirk
H.</SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt">Santa Rosa,
CA. USA</SPAN></P></DIV>
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