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Dear Crispin,<br>
<br>
I will be certain to drop in to see you the next time I am passing
through, ~ which isn't actually that often.<br>
The last time I was in the Waterloo area I was attending a meeting
at RTI, the fast pyrolysis company located there -- talking about
Biochar, of course.<br>
<br>
I would like to do some emissions tests, but I don't have the
Jatropha (that was only in MA). It works with wood pellets too, of
course (it was designed for pellets). I'd like to try other fuels
too (maybe Switchgrass pellets?). ~ What I am really wanting to try
are (used, dried) "Soap Nut" berries (from the <a
href="http://www.sapindusmukorossi.com/">Sapindus Mukorossi</a>
tree -- other species are also found in different parts of the
country), which are apparently ubiquitous in Nepal - generally
Soapnuts are mostly found on the Western Part of Nepal. <a
href="http://www.forestrynepal.org/resources/trees/sapindus-mukorossi">http://www.forestrynepal.org/resources/trees/sapindus-mukorossi</a><br>
<br>
Soapnuts are known as 'Rithha' in Nepali, and they are used
traditionally as soap over there for washing wool garments.<br>
They are actually among the list of herbs and minerals in Ayurveda.
They are a popular ingredient in Ayurvedic shampoos and cleansers
and are used in Ayurvedic medicine as a treatment for eczema,
psoriasis, and for "removing freckles". Soap nuts also have gentle
insecticidal properties and are traditionally used for removing
lice.<br>
<br>
If the planting of (both edible and non-edible) nut trees** could
be promoted not only for their agricultural (income-producing) value
but also for their energy (fuels) value [for stoves] ~ they might
even become more valuable standing than if they are cut down. This
could possibly then become a powerful incentive for promoting
reforestation and afforestation since people could end up making
more money planting and caring for the trees (and harvesting the
fruits and nuts from them) than by chopping them down to make
whole-wood fuels (like "cooking charcoal").<br>
<br>
**Note: Nut trees are some of the best carbon sequestering trees.
Agroforestry systems with Fruit and Nut trees for food can produce a
lot of calories. Someone once told me that an acre of apple trees
can produce "20 million calories". A million calories can easily
produce enough calories (on ~1/10 of an acre) for 1 person for a
year. (== 2740 calories/day, which is actually higher than the
"2,000 calorie diet" that is typically recommended by
nutritionists.)<br>
<br>
P.S. The biggest problem with the J-nuts was starting the fire at
the top. I had to spend some time crushing and opening up a handful
of nuts to place on top so that the oils would be released and it
would light easier. (I also 'cheated' and soaked the top layer of
crushed J-nuts in 97% IPA before throwing a match on. I don't know
how easy [or clean] it is to start the stove without the IPA. I
suspect that in places like Africa and Nepal IPA isn't quite as easy
to come by.)<br>
<br>
<pre class="moz-signature" cols="72"> Lloyd Helferty, Engineering Technologist
Principal, Biochar Consulting (Canada)
<a class="moz-txt-link-abbreviated" href="http://www.biochar-consulting.ca">www.biochar-consulting.ca</a>
603-48 Suncrest Blvd, Thornhill, ON, Canada
905-707-8754; 647-886-8754 (cell)
Skype: lloyd.helferty
Steering Committee member, Canadian Biochar Initiative
President, Co-founder & CBI Liaison, Biochar-Ontario
Advisory Committee Member, IBI
<a class="moz-txt-link-freetext" href="http://www.linkedin.com/groups?gid=1404717">http://www.linkedin.com/groups?gid=1404717</a>
<a class="moz-txt-link-freetext" href="http://www.facebook.com/group.php?gid=42237506675">http://www.facebook.com/group.php?gid=42237506675</a>
<a class="moz-txt-link-freetext" href="http://groups.google.com/group/biochar-ontario">http://groups.google.com/group/biochar-ontario</a>
<a class="moz-txt-link-freetext" href="http://www.meetup.com/biocharontario/">http://www.meetup.com/biocharontario/</a>
<a class="moz-txt-link-freetext" href="http://grassrootsintelligence.blogspot.com">http://grassrootsintelligence.blogspot.com</a>
<a class="moz-txt-link-abbreviated" href="http://www.biochar.ca">www.biochar.ca</a>
Biochar Offsets Group: <a class="moz-txt-link-freetext" href="http://www.linkedin.com/groups?home=&gid=2446475">http://www.linkedin.com/groups?home=&gid=2446475</a>
"Necessity may be the mother of invention, but innovators need to address problems before they become absolute necessities..."</pre>
<br>
On 2011-08-16 6:32 PM, Crispin Pemberton-Pigott wrote:
<blockquote cite="mid:03ee01cc5c64$6e7d9270$4b78b750$@gmail.com"
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<div class="WordSection1">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Dear
Lloyd<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">That
is great news. If you are passing through Waterloo please
stop in so we can do a couple of emission tests.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I
was working on the weekend to burn one of the worst fuels I
have seen so far – a 100mm diameter high density sawdust log
with no hole in the centre. Eventually I got it working well
and boiled 5.2 litres in 16 minutes. I used a 130mm long
piece standing up on end in a Vesto. I also tried drilling a
1 inch hole through the centre but to burn that it needs to
be in ‘gasifier mode’. That means starting with a higher
primary air flow then closing it. Not as convenient but
possible.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Regards<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Crispin<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0mm 0mm 0mm">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"
lang="EN-US">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"
lang="EN-US"> <a class="moz-txt-link-abbreviated" href="mailto:stoves-bounces@lists.bioenergylists.org">stoves-bounces@lists.bioenergylists.org</a>
[<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>Lloyd Helferty<br>
<b>Sent:</b> 16 August 2011 14:31<br>
<b>To:</b> Discussion of biomass cooking stoves<br>
<b>Subject:</b> Re: [Stoves] Jatropha and its future<o:p></o:p></span></p>
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</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Christina (And Jan),<br>
<br>
Just to let you (and everyone) know, I was able to
successfully use/burn whole Jatropha nuts in a natural draft
Top-Lit- UpDraft (TLUD) stove (made out of tin cans) at the
recent CHAB Camp hosted by the Biomass Energy Foundation in
Belchertown, MA. I did it outdoors on a windy day.<br>
While I did not intentionally inhale the smoke, I do not
believe that the smoke of the J-nuts was any more toxic than
other types of smoke. Hugh McLaughlin actually explained that
the smoke from a Jatropha fire was likely just as toxic as
from any other fire -- smoke of any kind tends to be something
one should not breathe [hence the warning on cigarette boxes].<br>
My little natural draft TLUD produced very little smoke once
the secondary airflow was adjusted properly and pyrolyzing the
Jatropha nuts, although when it was left unattended it did
start smoking a little bit at the end of the burn as the stove
attempted to burn through the resulting biochar. (Although if
this were running indoors, I would probably be more worried
about the CO being produced than any toxicity that might arise
from the J-nuts.)<br>
<br>
<o:p></o:p></p>
<pre> Lloyd Helferty, Engineering Technologist<o:p></o:p></pre>
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