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Tom, Philip, Crispin, and all,<br>
<br>
Yes, interesting. <br>
<br>
My question is about pyrolytic-only gasifiers that leave large
amounts of char behind, especially as in the TLUD situation. I have
thought (assumed, maybe incorrectly) that the ash is constrained
("held" or never formed) in the charcoal (except for the edges of
the charcoal that might have some char-gasification occuring. If I
am correct, this would be a contributing factor for TLUD stoves to
have low particulate emissions.<br>
<br>
Please clarify: is the ash being discussed in the size of
<PM2.5? Or is it larger stuff?<br>
<br>
Paul<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 8/2/2017 10:23 AM, Tom Miles wrote:<br>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif">Thanks
Philip. Interesting source. That’s the world I work in. <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif">Tom<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif">
Stoves [<a class="moz-txt-link-freetext" href="mailto:stoves-bounces@lists.bioenergylists.org">mailto:stoves-bounces@lists.bioenergylists.org</a>]
<b>On Behalf Of </b>IPC<br>
<b>Sent:</b> Tuesday, August 01, 2017 3:10 AM<br>
<b>To:</b> 'Discussion of biomass cooking stoves'
<a class="moz-txt-link-rfc2396E" href="mailto:stoves@lists.bioenergylists.org"><stoves@lists.bioenergylists.org></a><br>
<b>Cc:</b> 'Crispin Pemberton-Pigott'
<a class="moz-txt-link-rfc2396E" href="mailto:crispinpigott@outlook.com"><crispinpigott@outlook.com></a><br>
<b>Subject:</b> [Stoves] Fly ash and bottom ash
composition in biomass fuelled stoves<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"
lang="EN-ZA">Interesting general conclusions from industrial
practice at <a
href="http://www.biofact.eu/biomass-inorganic-split/"
moz-do-not-send="true">http://www.biofact.eu/biomass-inorganic-split/</a><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"
lang="EN-ZA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"
lang="EN-ZA">Prof Philip Lloyd<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"
lang="EN-ZA">Energy Institute, CPUT<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"
lang="EN-ZA">SARETEC, Sachs Circle<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"
lang="EN-ZA">Bellville<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"
lang="EN-ZA">Tel 021 959 4323<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"
lang="EN-ZA">Cell 083 441 5247<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"
lang="EN-ZA">PA Nadia 021 959 4330<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"
lang="EN-ZA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"
lang="EN-ZA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"
lang="EN-ZA"><o:p> </o:p></span></p>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma",sans-serif">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma",sans-serif">
Stoves [<a
href="mailto:stoves-bounces@lists.bioenergylists.org"
moz-do-not-send="true">mailto:stoves-bounces@lists.bioenergylists.org</a>]
<b>On Behalf Of </b>Nikhil Desai<br>
<b>Sent:</b> Thursday, July 27, 2017 6:07 PM<br>
<b>To:</b> Discussion of biomass cooking stoves<br>
<b>Cc:</b> Crispin Pemberton-Pigott<br>
<b>Subject:</b> Re: [Stoves] New video from Tajikistan and
Kyrgyzstan stove pilots<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span lang="EN-ZA"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span lang="EN-ZA">Crispin, Paul:<br>
<br>
A dumb question: Is it the production of gases or the high
temperatures -- or some sequence thereof -- which makes
for very low emission rates independent of fuel type and
quality? Or is it the relatively steady power requirements
of a heating stove? <br>
<br>
It suddenly dawned on me - reading a children's book -
that the type of large heating stove used in Europe that
also doubled for cooking was because of the type of
cooking: grilling, roasting, soups and stews, but less of
frying and spicing as in Asia. <br>
<br>
Or that the cuisine responded to the availability of
energy delivery system. <br>
<br>
Bernard Lewis wrote a brilliant essay called "In the
Finger Zone", where he said (writing from memory), "The
world can be divided in three areas by way of eating: fork
zone, finger zone, chopstick zone. These areas are also
roughly fresh cream zone, sour cream (or yoghurt) zone,
and no cream zone." <br>
<br>
Now I am thinking of world geographies and human cooking
histories as "Cookstove zone, Heating and cooking stoves
zone, and Combo stove zone." <br>
<br>
I still hold that for cooking-only stoves with a rich
enough menu, biomass of low energy density has different
emission rates according to fuel quality (and operating
practices, of course). That a WBT can deliver "stove
performance" independent of fuel quality is presumptively
dubious. <br>
<br>
Nikhil<o:p></o:p></span></p>
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<o:p></o:p></span></p>
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<p
class="MsoNormal"><span
style="font-family:"Georgia",serif" lang="EN-ZA">------------------------------------------------------------------------<br>
Nikhil Desai</span><span
lang="EN-ZA"><o:p></o:p></span></p>
</div>
<div>
<p
class="MsoNormal"
style="margin-bottom:12.0pt"><span
style="font-family:"Georgia",serif"
lang="EN-ZA">(US
+1) 202 568
5831<br>
<i>Skype:
nikhildesai888</i></span><span
lang="EN-ZA"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-ZA"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-ZA">On Thu, Jul 27, 2017
at 12:12 PM, Crispin Pemberton-Pigott <<a
href="mailto:crispinpigott@outlook.com"
target="_blank" moz-do-not-send="true">crispinpigott@outlook.com</a>>
wrote:<o:p></o:p></span></p>
<div>
<div>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-CA">Thanks Michael!<o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-CA"> <o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-CA">At the moment the engineer, Ulan, and
team are preparing a producer’s manual and an
installation manual. The latter is very interesting
because they have worked out how to install these
stoves (4 models) into a wide range of home types,
in some cases where the existing product being
removed is <i>completely</i> different in the way
it fits into the building. Often the traditional
stove is a structural element in a wall!<o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-CA"> <o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-CA">The fuels vary widely. In one region it
is almost exclusively walnut! OMG. A lot of fruit
wood is burned, a lot of dung for cooking and coal
for heating (same stove). Cotton stalks are popular
in that whole region. It is difficult to burn
slowly.<o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-CA"> <o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-CA">There is a lot of new work going on.
CARITAS Switzerland is working in Tajikistan (Jonas
Haller) and he is just starting to produce 700
stoves for this season, two models 350 of each. We
were collaborating on Skype to get the parts nested
better and it is amazing how much better two heads
work than one. Jonas is producing them in Muminabad
in the deep south, one of the poorest regions of the
poorest country in the former Soviet Union.<o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-CA"> <o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-CA">Regards<o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="color:#888888" lang="EN-CA">Crispin<o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-CA"> <o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-CA"> <o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-CA"> <o:p></o:p></span></p>
<div>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-CA">Crispin keep on trucking--<o:p></o:p></span></p>
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<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-CA"> <o:p></o:p></span></p>
<div>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-CA">On Thu, Jul 27, 2017 at 10:37 PM,
Crispin Pemberton-Pigott <<a
href="mailto:crispinpigott@outlook.com"
target="_blank" moz-do-not-send="true">crispinpigott@outlook.com</a>>
wrote:<o:p></o:p></span></p>
<blockquote style="border:none;border-left:solid
#CCCCCC 1.0pt;padding:0in 0in 0in
6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt">
<p class="MsoNormal"
style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><span
lang="EN-CA">Dear Friends<br>
<br>
The WB has put out a new combined video
showing scenes from the two countries and it
is available here<<a
href="http://www.worldbank.org/en/news/video/2017/06/20/clean-individual-heating-solutions-in-the-kyrgyz-republic-and-tajikistan"
target="_blank" moz-do-not-send="true">http://www.worldbank.org/en/news/video/2017/06/20/clean-individual-heating-solutions-in-the-kyrgyz-republic-and-tajikistan</a>>.<br>
<br>
The is a very brief shot of the gas flame at
about 1:25. That is the Model 4 crossdraft
coal gasifier flame. Note the colour. When the
cover is on, it burns with less disturbance
but that is hard to show without a glass
cover.<br>
<br>
There is also a good view towards the end of a
TLUD gasifier which has a burn time of about 9
hours. The only fuel provided to schools is a
very poor quality 'Aine coal' which is about
50% rock. It looks like black rock to start
and white rock after burning. That TLUD is
able to burn it properly provided there is
sufficient draft, which means a 5m chimney.
Achieving that was quite difficult, I admit
and was only solve on literally the last day
of the trip in November.<br>
<br>
There are two videos now but I think the other
one has been referenced here before. The new
one is combined. A total of 91 homes were
involved in the pilot in the two countries.
The PM reduction numbers mentioned are modest,
the true figures for the Models 4 and 5 coal
stove are closer to 99.9%.<br>
<br>
Regards<br>
<span class="m7376678889035057546hoenzb"><span
style="color:#888888">Crispin</span></span><o:p></o:p></span></p>
</blockquote>
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<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-CA"> <o:p></o:p></span></p>
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