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Crispin,<br>
<br>
I appreciate you insights. I wish to clarify a few things below:<br>
<br>
<br>
<pre class="moz-signature" cols="72">Doc / Dr TLUD / Prof. Paul S. Anderson, PhD
Email: <a class="moz-txt-link-abbreviated" href="mailto:psanders@ilstu.edu">psanders@ilstu.edu</a>
Skype: paultlud Phone: +1-309-452-7072
Website: <a class="moz-txt-link-abbreviated" href="http://www.drtlud.com">www.drtlud.com</a></pre>
<div class="moz-cite-prefix">On 10/4/2017 5:21 AM, Crispin
Pemberton-Pigott wrote:<br>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext;mso-fareast-language:EN-US">Dear
Paul<o:p></o:p></span></p>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext;mso-fareast-language:EN-US">Sensible
comments as usual. Thanks. I don’t have a monopoly on
how the big questions should be approached so I note
your idea about separating stove by group, with lots of
quibbles for another time. The fact is there are so many
misconceptions allowed to run riot about stoves we have
to take practical steps in the arenas we can affect.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext;mso-fareast-language:EN-US">The
risk for the TLUD as a ‘technology’ is that I see it
being tied, inextricably, to the
biochar-soil-amendment-climate-controlling narrative. </span></p>
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That is your perception. That is the intention of some others.
It is of some interest to me, but is NOT my intention. What
happens to the char is up for discussion, and I mean discussion at
the local level of the people who actually have the char from the
TLUD stoves. The "talk" of biochar means nothing if biochar is not
of interest (or is not of benefit) to the households who created the
char.<br>
<br>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext;mso-fareast-language:EN-US">There
is nothing inherent about a TLUD that requires this
diversion. If the concept of the
biochar-soil-amendment-climate-controlling narrative is
widely accepted, actions taken at scale, a systems
approach will be used as the little contributions from
individual stoves – useful in certain cases – will
either be considered a cute also-ran or marginalized in
the interests of scale. Cooks will be fighting with the
char makers for access to the raw material. The char
makers will win because they can control the quality and
have a higher yield. </span></p>
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The fight (if there is one) for access to the raw material will be
won or lost on economic terms. And your last sentence is not
correct. TLUD char is usually quite consistent in it quality. And
that char is with rather LOW volatiles (because it is made at higher
temperatures), which makes it lighter, and therefore with less yield
BY WEIGHT. But by quality, that depends on who wants the char.
And about that, I am neutral.<br>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext;mso-fareast-language:EN-US">The
path you are choosing
<i>looks good</i> now because you have been beating your
head against a wall for years. </span></p>
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AMEN!!! Yes, it has been a LONG time.<br>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext;mso-fareast-language:EN-US">Now
a few cracks are appearing. It might be much easier to
walk around the wall to get to the other side. TLUD’s as
an operating behaviour, are systematically cleaner
burning than common use. To restrict your options to
only particular fuels, preparations, co-benefits (char)
and loading methods is hardly a great idea. Why do that?
</span></p>
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I disagree with you statement. I think that I do NOT restrict my
options. Maybe you are seeing only part of my activities. I am
fussy about what is and is not true TLUD. And I encourage others
to experiment (but not to call they stuff TLUD as if TLUD means all
forms of micro-gasification.) One of my "faults" is that I have
general TLUD concepts but do not have specific technical drawings
with engineering specifications. (and that deficiency continues for
me, with the soon (before GACC Forum)to be announced Mini and FAAB
aspects of TLUDs. -- assistance is welcome.)<br>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext;mso-fareast-language:EN-US">What
could and should be a major sector of a large and
diverse market is being trimmed to a narrow description
because it looks as if there is support from some
quarters. Don’t hitch your wagon to one horse.</span></p>
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Good advice and good analogy. What I do not want to do is hitch up
an additional horse that will be headed in a different direction. <br>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext;mso-fareast-language:EN-US">TLUD
gasifiers are a perfectly acceptable technology and the
multiple mentions of the chambers getting too hot for
tincanium is a distraction. If you have a materials
problem, solve it. That is what I am doing in UB. It is
an essential part of professionalising the sector.
People want products, not experiments. At least use the
opportunity to promote TLUD’s, not only those which are
tuned to producing char. The enthusiasts are getting to
grips with micro-gasification and it can be applied to a
variety of tasks at least one of which is simply burning
all the fuel for a useful purpose.
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This is certainly among the various considerations. <br>
<br>
Your comments are appreciated.<br>
<br>
Paul<br>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext;mso-fareast-language:EN-US">I
am not asking you to slacken, but broaden.<o:p></o:p></span></p>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext;mso-fareast-language:EN-US">Best
regards<br>
Crispin<o:p></o:p></span></p>
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style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext"
lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Crispin,<br>
<br>
There is much truth in what you have written about so many
different topics. That number of topics raises the question
about separation of topics or unification of topics. My
feeling are influenced by my years working on TLUD stoves.<br>
<br>
1. The decisions should be in relation to assisting the
impoverished people, and not focused n "setting riight" all
the wrongs associated with some toipic, which in this this
case is LPG big business.<br>
<br>
2. The issues about the unfair labling of "dirty solid fuels"
cannot be resolved by placing ALL of the solid fuels together,
and keeping ALL of the biomass stove types together. There
are some biomass stoves that do not deserve to be protected
and justified. Let them drop out. That is essentially
saying that the gasifier stoves (which have a good chance to
be finally recognized as being worthy of consideration) should
be disassociated from the other biomass stoves. I have been
saying that in the "Classification...." document.<br>
<br>
3. Similar rationale about the other solid fuel, meaning
coal. I am not against coal. I believe that there can be
(and are) some stoves / heaters that can burn coal cleanly.
But they will need to be presented separately from the biomass
stoves, meaning separate from the poor-combustion biomass
stoves and also from the very good combustion gasifier
stoves.
<br>
<br>
4. I consider it a great advancement that Kirk Smith has
openned the door for consideration of the TLUD gasifier stoves
(and any other biomass stoves that can present the data and
success stories that he is seeking). I will not be trying
to make a general case that would include rocket stoves or
charcoal stoves or even gasifiers stoves of coal, and not even
the non-TLUD gasifier stoves ("fan-jet" etc.).<br>
<br>
5. The above comments might seem "selfish" or "seff-centered
on TLUDs", but the approach is realistic about getting at
least one type of biomass stove into the "acceptable" category
and to disprove the "dirty solid fuels" statements. Please
re-read comment #1 about the purpose being to help the poor
families, not some idealistic objective. The global need
for much improved cookstoves is so great that there is plenty
of room for LPG and the gasifiers of biomass. I have no
desire to tear down the LPG efforts; improve them, yes. And
I certainly would like to show that the target families are
appreciate and desire the TLUD stoves with local biomass fuels
even more than they do the LPG stovers with imported fossil
fuels. But that can only happen when the TLUD stoves are
into the communities in significant numbers. <br>
<br>
Paul<br>
<br>
<br>
<br>
<o:p></o:p></p>
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