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    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>
    <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 2011-08-10 8:33 PM, Jan Bianchi wrote:
    <blockquote cite="mid:C7C68955FD51422781269C1ACBF1FB76@Bianchi"
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                    <p class="MsoNormal"><font size="2" face="Arial"
                        color="navy"><span style="font-size:
                          10.0pt;font-family:Arial;color:navy">Christina<o:p></o:p></span></font></p>
                    <p class="MsoNormal"><font size="2" face="Arial"
                        color="navy"><span style="font-size:
                          10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
                    <p class="MsoNormal"><font size="2" face="Arial"
                        color="navy"><span style="font-size:
                          10.0pt;font-family:Arial;color:navy">Yes,
                          there are toxins in some varieties of
                          jatropha which, if eaten, can cause severe
                          abdominal cramping and even death if
                          not passed.  That is why the plant operates so
                          well as a hedge.  Animals won’t
                          eat through it.  This is well-known in
                          communities which historically have
                          jatropha available where it is sometimes taken
                          intentionally as a purgative.  <o:p></o:p></span></font></p>
                    <p class="MsoNormal"><font size="2" face="Arial"
                        color="navy"><span style="font-size:
                          10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
                    <p class="MsoNormal"><font size="2" face="Arial"
                        color="navy"><span style="font-size:
                          10.0pt;font-family:Arial;color:navy">Jatopha
                          oil has been burned for centuries with
                          no known ill effect, and it is currently being
                          burned as a biodiesel fuel in
                          cars in <st1:place w:st="on">Europe</st1:place>.
                          Today, rolled logs of the mash
                          left over from pressing the oil are used to
                          fire pizza ovens in <st1:country-region
                            w:st="on"><st1:place w:st="on">Tanzania</st1:place></st1:country-region>. 
                          While
                          the latter is not a practice we would
                          recommend, it does not seem to be having a
                          purgative effect on current customers!   But
                          no thorough scientific studies
                          have been done on the smoke.  A smoke study of
                          jatropha oil and briquettes has recently
                          been completed in <st1:place w:st="on">Europe</st1:place>,
                          but it did not test
                          for toxic compounds. This is one reason why we
                          insist on the stove being used
                          outside with the smoke vented away from the
                          cook or perhaps eventually inside
                          if the smoke can be adequately vented to the
                          outside.  Dilution of smoke in
                          outside air is at least 100 times greater than
                          dilution indoors.  <o:p></o:p></span></font></p>
                    <p class="MsoNormal"><font size="2" face="Arial"
                        color="navy"><span style="font-size:
                          10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
                    <p class="MsoNormal"><font size="2" face="Arial"
                        color="navy"><span style="font-size:
                          10.0pt;font-family:Arial;color:navy">The
                          jatropha that originated in <st1:place
                            w:st="on">Central America</st1:place> is not
                          believed to be toxic, but the
                          varieties grown throughout the rest of the
                          world are.  The toxic varieties are believed
                          to contain more oil and are therefore the
                          types planted by the biodiesel companies. 
                          <st1:country-region w:st="on"><st1:place
                              w:st="on">Haiti</st1:place></st1:country-region>
                          is currently introducing the non toxic variety
                          there.  It would be our hope
                          that anyone planting jatropha from the start
                          would use a non toxic variety, but
                          we know it is not credible that none of the
                          toxic varieties available today
                          throughout the tropics would ever be used in
                          our stove. <o:p></o:p></span></font></p>
                    <p class="MsoNormal"><font size="2" face="Arial"
                        color="navy"><span style="font-size:
                          10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
                    <p class="MsoNormal"><font size="2" face="Arial"
                        color="navy"><span style="font-size:
                          10.0pt;font-family:Arial;color:navy">The
                          toxins in the seed and plant are
                          curcin, a type of lectin, phorbol esters,
                          trypsin inhibiters, and phytates. 
                           (Incidentally,
                          curcin is not the same as its far more deadly
                          cousin ricin.  Please don’t
                          make the mistake, as some have in the past,
                          that similar sounding names and
                          family connections mean they must have similar
                          impacts.)   Whether these toxins
                          are transferred to the smoke itself and, if
                          so, in what concentrations has not
                          been scientifically studied.<o:p></o:p></span></font></p>
                    <p class="MsoNormal"><font size="2" face="Arial"
                        color="navy"><span style="font-size:
                          10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
                    <p class="MsoNormal"><font size="2" face="Arial"
                        color="navy"><span style="font-size:
                          10.0pt;font-family:Arial;color:navy">We do
                          know some mitigating factors. Lectins
                          and phytates are normally detoxified by
                          heating.  We know that the toxic effects
                          of curcin, for example, are destroyed by
                          raising the temperature to 120 degrees.
                          The mash left over from jatropha oil
                          production is currently being heated and and
                          then fed to animals.   Much less is known
                          about the effects of the phorbol
                          esters in jatropha, but if they behave like
                          other esters, they are unlikely to
                          survive the heat of our stove between ca 600
                          and 900C.  Wood itself has toxic
                          and carcinogenic qualities.  Just look at the
                          creosote created in fireplaces or
                          charcoal production, yet we burn wood without
                          any concern for its toxicity,
                          presumably because we are more familiar with
                          it.<o:p></o:p></span></font></p>
                    <p class="MsoNormal"><font size="2" face="Arial"
                        color="navy"><span style="font-size:
                          10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
                    <p class="MsoNormal"><font size="2" face="Arial"
                        color="navy"><span style="font-size:
                          10.0pt;font-family:Arial;color:navy">In order
                          to address legitimate concerns that
                          users may have about the smoke, Jet City
                          StoveWorks has been doing research on
                          this issue.   We are in the process of
                          completing a literature study of
                          jatropha’s toxicity and we are currently in
                          discussion with two laboratories
                          to have smoke composition tests done to
                          identify the type and concentration of
                          toxins that may continue to exist in the smoke
                          from our stove.  We are hopeful
                          that, if the type and concentration, if any,
                          of toxic compounds in the smoke of
                          jatropha from our stove can be identified,
                          then more reliable inferences can drawn
                          by toxicologists as to the likelihood of their
                          being harmful in whatever concentration
                          they may be found.  We, of course, could never
                          afford to do the years of animal
                          trials that would need to be undertaken to
                          have absolute certainty, but neither
                          is any such certainty known about the smoke of
                          burning wood or the exhaust from
                          diesel buses in our cities which we tolerate
                          daily.  Given what we know about
                          jatropha, we believe that the use of our stove
                          will be at least better for a
                          cook’s health than its three stone fire
                          alternative.  We are having the
                          research done by competent third parties.  We
                          will place the results of the
                          third party testing on our website when they
                          are completed.<o:p></o:p></span></font></p>
                    <p class="MsoNormal"><font size="2" face="Arial"
                        color="navy"><span style="font-size:
                          10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
                    <p class="MsoNormal"><font size="2" face="Arial"
                        color="navy"><span style="font-size:
                          10.0pt;font-family:Arial;color:navy">One
                          caveat.  I am neither a chemist nor a
                          toxicologist,
                          so if you (by which I mean any listserve
                          member who may wish to respond) are
                          one, and you believe I have stated something
                          above that you believe to be
                          inaccurate or omitted some important item,
                          please point it out.  I am a lawyer.
                          I have read a lot about this subject since the
                          issue created so much
                          controversy at the ETHOS conference last
                          January and I believe the above to be
                          accurate. 
                          Our literature study and the smoke studies
                          will far be more definitive.<o:p></o:p></span></font></p>
                    <p class="MsoNormal"><font size="2" face="Arial"
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                    <p class="MsoNormal"><font size="2" face="Arial"
                        color="navy"><span style="font-size:
                          10.0pt;font-family:Arial;color:navy">Jan<o:p></o:p></span></font></p>
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                        color="navy"><span style="font-size:
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                    <p class="MsoNormal"><font size="2" face="Arial"
                        color="navy"><span style="font-size:
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                    <p class="MsoNormal"><font size="2" face="Arial"
                        color="navy"><span style="font-size:
                          10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
                    <div>
                      <div class="MsoNormal" style="text-align:center"
                        align="center"><font size="3" face="Times New
                          Roman"><span style="font-size:12.0pt">
                            <hr tabindex="-1" size="2" width="100%"
                              align="center">
                          </span></font></div>
                      <p class="MsoNormal"><b><font size="2"
                            face="Tahoma"><span style="font-size:10.0pt;
                              font-family:Tahoma;font-weight:bold">From:</span></font></b><font
                          size="2" face="Tahoma"><span
                            style="font-size:10.0pt;font-family:Tahoma">
                            <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><span style="font-weight:
                                bold">On Behalf Of </span></b>Christina
                            Espinosa<br>
                            <b><span style="font-weight:bold">Sent:</span></b>
                            Wednesday, August 10, 2011
                            2:00 PM<br>
                            <b><span style="font-weight:bold">To:</span></b>
                            <st1:personname w:st="on">Discussion of
                              biomass cooking stoves</st1:personname><br>
                            <b><span style="font-weight:bold">Subject:</span></b>
                            Re: [Stoves] Jatropha and
                            its future</span></font><o:p></o:p></p>
                    </div>
                    <p class="MsoNormal"><font size="3" face="Times New
                        Roman"><span style="font-size:
                          12.0pt"><o:p> </o:p></span></font></p>
                    <p class="MsoNormal" style="margin-bottom:12.0pt"><font
                        size="3" face="Times New Roman"><span
                          style="font-size:12.0pt">Hi All,<br>
                          Since the topic of jatropha came up I have
                          been wondering a little about it's
                          use with stoves. Everything I have seen about
                          stoves and jatropha so far does
                          not cover this. Maybe you all can help me
                          answer these questions:<br>
                          <br>
                          1. Jatropha is poisonous right? How is this
                          being mitigated in the processing
                          of the seed (making press cakes, oil
                          extraction)?<br>
                          2. During combustion how is the poison
                          altered?<br>
                          3. What studies have been done showing that
                          there is no harmful poison being
                          transferred while cooking?<br>
                          <br>
                          Thanks!<br>
                          <br>
                          Christina Espinosa<br>
                          University of the Pacific '10<br>
                          <st1:place w:st="on"><st1:placetype w:st="on">School</st1:placetype>
                            of <st1:placename w:st="on">International</st1:placename></st1:place>
                          Studies<br>
                          <a moz-do-not-send="true"
                            href="mailto:c_espinosa1@u.pacific.edu"
                            target="_blank">c_espinosa1@u.pacific.edu</a><o:p></o:p></span></font></p>
                    <div>
                      <p class="MsoNormal"><font size="3" face="Times
                          New Roman"><span style="font-size:
                            12.0pt">On Wed, Aug 10, 2011 at 1:14 PM, Jan
                            Bianchi <<a moz-do-not-send="true"
                              href="mailto:janbianchi@comcast.net">janbianchi@comcast.net</a>>
                            wrote:<o:p></o:p></span></font></p>
                      <div link="blue" vlink="blue">
                        <div>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt">Ron<o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt"> <o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt">Thank you for
                                your
                                questions about the Jiko Safi, the
                                jatropha seed stove that Jet City
                                StoveWorks
                                is currently testing.  I apologize for
                                the delay in response, but I had to
                                pass the questions on to our developers
                                as I am not technically competent to
                                answer all of them.<o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="2" face="Arial" color="navy"><span
                                style="font-size:10.0pt;font-family:Arial;
                                color:navy"> </span></font><o:p></o:p></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><u><font
                                size="3" face="Times New Roman"><span
                                  style="font-size:12.0pt">Why use
                                  jatropha
                                  in the Jiko Safi? Why whole seed?</span></font></u> <o:p></o:p></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt"> <o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt">Frankly, we got
                                involved in developing a jatropha seed
                                stove because it hadn’t been
                                successfully done.  Past efforts
                                resulted in a very fast, smoky
                                burn.   Jonathan Otto, who has been
                                working in <st1:place w:st="on">East
                                  Africa</st1:place> with farmers
                                engaged in jatropha production, knew
                                about the
                                past failures and jatropha’s abundance
                                there and urged us to try. 
                                 One of our developers, Dave Covert, is
                                an emeritus research professor in
                                Atmospheric Sciences from the <st1:placetype
                                  w:st="on">University</st1:placetype>
                                of <st1:placename w:st="on">Washington</st1:placename>
                                and the other, David
                                Otto, is a contractor/ tinkerer
                                extraordinaire in <st1:city w:st="on"><st1:place
                                    w:st="on">Seattle</st1:place></st1:city>.
                                 They had not traditionally
                                been “stovers,” but they are now.<o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt"> <o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt">As you know,
                                jatropha is a very common tropical and
                                sub-tropical non-food plant with
                                high energy content, available from <st1:country-region
                                  w:st="on">Haiti</st1:country-region>
                                to <st1:country-region w:st="on">Bhutan</st1:country-region>
                                to <st1:country-region w:st="on"><st1:place
                                    w:st="on">Indonesia</st1:place></st1:country-region>.
                                It
                                can be easily cultivated as a hedge row
                                and on land not suitable
                                for other crops. In many areas of the
                                world we have reached 'Peak
                                Wood." Things will not change for the
                                better as population
                                expands. One estimate suggests less than
                                4% of the jatropha seed
                                is harvested.   We believe this largely
                                unused rural energy source
                                has potential as an alternative to tree
                                burning stoves, both charcoal and wood.
                                 We believe that “there is no food
                                security without fuel
                                security” and jatropha can be a secure
                                fuel.  Our hope is to make
                                the alternative stove available to the
                                people who are now walking for hours
                                past jatropha on their way to a
                                diminishing supply of trees.  We expect
                                that eventually jatropha seed will
                                also be available on the street
                                corners in villages and urban areas just
                                as the much more expensive charcoal
                                and kerosene are now.<o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt"> <o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt">In several
                                places
                                around the world, there are experiments
                                going on with jatropha seed cake
                                and rice hull blends where seed is
                                purchased from the farmer then
                                transported to a center with the
                                electricity necessary to run three
                                machines: an extractor that removes
                                about 95% of the oil, a hammer mill
                                processes the seed cake with the rice
                                hulls and other ingredients,
                                and a pelletizer to form the material in
                                a way it can be burned.  Finally
                                the pellets are transported back to the
                                farmer/cook. This approach to using
                                jatropha could prove to work well in
                                areas that have the machinery and the
                                electricity. <o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt"> <o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt">In the
                                meantime,
                                Jet City StoveWorks is focusing on a
                                whole seed as a fuel for its simplicity,
                                availability and very small carbon
                                footprint as well as putting the
                                farmer/ cook in charge of her fuel.  It
                                is a natural pellet stove.<o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt"> <o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><u><font
                                size="3" face="Times New Roman"><span
                                  style="font-size:12.0pt">How did this
                                  stove
                                  come to have a central air duct, a
                                  chimney, no port adjustment equipment,
                                  the amount of secondary air holes
                                  etc.?</span></font></u><o:p></o:p></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt">We started with
                                several specific goals: <o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt">(1)
                                  The stove was specific to jatropha
                                with its high energy content.
                                Other seeds with high oil content may
                                work: castor, croton and sunflower
                                seeds come to mind, though some have
                                competing uses.  We will be testing
                                them in time. <o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt">(2)
                                  The stove must be direct, intuitive
                                and simple to use,
                                requiring only a demonstration of how
                                to light a TLUD stove. <o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt">(3)
                                  The stove will operate with natural
                                draft: without fan if possible
                                and without moving parts--the bane of
                                all machines in developing areas.<o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt">(4)  The
                                stove must be designed to have the
                                lowest possible emissions and remove
                                whatever pollution that is created away
                                from the cook and her family. <o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt">(5)
                                  The stove must be durable and long
                                lasting. <o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt">(6)
                                  The stove's truly important field test
                                is its success in meeting
                                the cook's needs as she prepares daily
                                meals because only then will it be used.<o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt"> <o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt">The stove
                                evolved
                                over the past twelve months to its
                                current form. Starting with TLUD
                                principles
                                (e.g. seeking the correct balance of
                                primary and secondary air,  thank you
                                Paul Anderson), we then made rough
                                calculations of the energy captured in
                                the
                                seed and started building and modifying
                                in a typical iterative process.
                                Typical stove designs all had too much
                                primary air and often a promising
                                design would work well in some respect
                                but not all.  For example, we had
                                one model that would boil water
                                like crazy but the temperature just
                                above
                                the fuel was over 1100 C.  When the
                                central air duct was added in a week
                                long testing at the wonderful facility
                                at CREEC in <st1:country-region
                                  w:st="on"><st1:place w:st="on">Uganda</st1:place></st1:country-region>,
                                the opposing secondary air
                                currents brought the turbulent flame
                                down to a flat, reliable pattern.
                                 We are experimenting with an adjustment
                                that allows the primary air to be
                                shut off at the end of a burn to cut off
                                the smoke that usually occurs at that
                                point.  We are currently doing pollution
                                testing, advocate open
                                source principles and so will be posting
                                information at our new web site which
                                is currently under construction.  http//<a
                                  moz-do-not-send="true"
                                  href="http://jetcitystoveworks.com"
                                  target="_blank">jetcitystoveworks.com</a> 
                                <o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt"> <o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt">The Jiko Safi
                                is
                                currently being manufactured by metal
                                workers in <st1:place w:st="on"><st1:city
                                    w:st="on">Arusha</st1:city>, <st1:country-region
                                    w:st="on">Tanzania</st1:country-region></st1:place>,
                                who we have assisted in the financing of
                                the tools and jigs necessary to
                                produce the stove within the tolerances
                                required.  That is the model we
                                expect to use wherever we introduce the
                                stove so there will be local economic
                                development opportunities as well as
                                someone available to repair the stove,
                                if
                                necessary.  It is currently designed to
                                be used only outside.  We
                                hope that kitchen testing will tell us
                                whether it can be used indoors as long
                                as the chimney is ventilated to the
                                outside.<o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt"> <o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt">The testing and
                                manufacture is under being done with the
                                assistance of the Department of
                                Agriculture, Partnership for
                                Development, JANI, (Jatropha Agriculture
                                and Nutrition
                                Initiative in <st1:country-region
                                  w:st="on"><st1:place w:st="on">Tanzania</st1:place></st1:country-region>,
                                and Pamoja, Inc. <o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt"> <o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt">Thanks for your
                                interest and questions.  We welcome
                                suggestions.<o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt"> <o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt">Jan <o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="3" face="Times New Roman"><span
                                style="font-size:12.0pt"> <o:p></o:p></span></font></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="2" face="Arial" color="navy"><span
                                style="font-size:10.0pt;font-family:Arial;
                                color:navy"> </span></font><o:p></o:p></p>
                          <p class="MsoNormal"
                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                              size="2" face="Arial" color="navy"><span
                                style="font-size:10.0pt;font-family:Arial;
                                color:navy"> </span></font><o:p></o:p></p>
                          <div>
                            <div class="MsoNormal"
                              style="text-align:center" align="center"><font
                                size="3" face="Times New Roman"><span
                                  style="font-size:12.0pt">
                                  <hr size="2" width="100%"
                                    align="center">
                                </span></font></div>
                            <p class="MsoNormal"
                              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><font
                                  size="2" face="Tahoma"><span
                                    style="font-size:10.0pt;font-family:Tahoma;font-weight:
                                    bold">From:</span></font></b><font
                                size="2" face="Tahoma"><span
                                  style="font-size:
                                  10.0pt;font-family:Tahoma"> <a
                                    moz-do-not-send="true"
                                    href="mailto:rongretlarson@comcast.net"
                                    target="_blank">rongretlarson@comcast.net</a>
                                  [mailto:<a moz-do-not-send="true"
                                    href="mailto:rongretlarson@comcast.net"
                                    target="_blank">rongretlarson@comcast.net</a>]
                                  <br>
                                  <b><span style="font-weight:bold">Sent:</span></b>
                                  Monday, August 08, 2011 8:21
                                  PM<br>
                                  <b><span style="font-weight:bold">To:</span></b>
                                  <st1:personname w:st="on">Discussion
                                    of biomass cooking stoves</st1:personname>;
                                  Jan Bianchi<o:p></o:p></span></font></p>
                            <div>
                              <div>
                                <p class="MsoNormal"><font size="2"
                                    face="Tahoma"><span
                                      style="font-size:10.0pt;
                                      font-family:Tahoma"><br>
                                      <b><span style="font-weight:bold">Subject:</span></b>
                                      Re: [Stoves] Jatropha and
                                      its future<o:p></o:p></span></font></p>
                              </div>
                            </div>
                          </div>
                          <div>
                            <div>
                              <p class="MsoNormal"
                                style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                                  size="3" face="Times New Roman"><span
                                    style="font-size:12.0pt"> <o:p></o:p></span></font></p>
                              <div>
                                <div>
                                  <div>
                                    <div>
                                      <div>
                                        <p class="MsoNormal"
                                          style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><font
                                            size="3" face="Arial"
                                            color="black"><span
                                              style="font-size:12.0pt;font-family:Arial;
                                              color:black">Jan and list<br>
                                              <br>
                                                This is to better
                                              understand your nice <st1:placename
                                                w:st="on">Jet</st1:placename>
                                              <st1:placetype w:st="on">City</st1:placetype>
                                              stove .(for non West Coast
                                              <st1:country-region
                                                w:st="on">USA</st1:country-region>
                                              readers - that means <st1:city
                                                w:st="on"><st1:place
                                                  w:st="on">Seattle</st1:place></st1:city> 
                                              - which has a lot of
                                              Biochar
                                              activity)<br>
                                              <br>
                                               1.   How did you happen
                                              to center on Jatropha?  
                                              Have you
                                              experimented both with
                                              whole seeds and the
                                              residue after pressing and
                                              how does
                                              stove operation differ? 
                                              Have you tried anything
                                              like wood chips?<br>
                                              <br>
                                                2.  I think the flame
                                              pattern in your stove is
                                              wonderful.  As
                                              you say, very compact and
                                              obviously very turbulent -
                                              which must be
                                              desirable.  I am pretty
                                              sure the idea of central
                                              secondary air has been
                                              mentioned n the past on
                                              this list as a possibility
                                              - but I don't recall ever
                                              seeing it in practice. 
                                              Can you describe a bit how
                                              you came to the present
                                              dimensions ?<br>
                                              <br>
                                              3.  I worry that you may
                                              now have too much
                                              secondary air - as the
                                              flame
                                              seems to only be holding
                                              near the bottom row or
                                              two.  Have you any way of
                                              knowing what the dilution
                                              factor is?  Tried
                                              operation with a smaller
                                              number of interior holes 
                                              (just plugging some
                                              progressively)?<br>
                                              <br>
                                              4.  The central "column"
                                              (maybe with a different
                                              height) looks
                                              like it might  be able to
                                              hold a pot of the right
                                              size - since you would
                                              then already have the
                                              "convection shield" that
                                              gives considerable
                                              efficiency improvement.
                                              And you could retain the
                                              chimney height needed to
                                              get
                                              your desired air flow and
                                              power level. Ever been
                                              tried?<br>
                                              <br>
                                              5.  I have felt that
                                              controlling primary air
                                              supply to be an important
                                              feature of pyrolysis
                                              stoves (TLUDs).  It seems
                                              your bottom set of holes
                                              could receive a rotating
                                              or sliding (or up and
                                              down) plate to accomplish
                                              that.  Has that ever been
                                              tried?  (This being
                                              accomplished nicely
                                              with a blower in the "Paul
                                              Olivier design also being
                                              discussed today.)<br>
                                              <br>
                                              Best of luck with what you
                                              are doing.  Nice work.<br>
                                              <br>
                                              Ron<br>
                                               </span></font><o:p></o:p></p>
                                        <div class="MsoNormal"
                                          style="text-align:center"
                                          align="center"><font size="3"
                                            face="Arial" color="black"><span
style="font-size:12.0pt;font-family:Arial;
                                              color:black">
                                              <hr size="2" width="100%"
                                                align="center">
                                            </span></font></div>
                                        <p class="MsoNormal"
                                          style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><b><font
                                              size="3" face="Arial"
                                              color="black"><span
                                                style="font-size:12.0pt;font-family:Arial;
color:black;font-weight:bold">From: </span></font></b><font
                                            face="Arial" color="black"><span
style="font-family:Arial;color:black">"Jan Bianchi"
                                              <<a
                                                moz-do-not-send="true"
                                                href="mailto:janbianchi@comcast.net"
                                                target="_blank">janbianchi@comcast.net</a>><br>
                                              <b><span
                                                  style="font-weight:bold">To:
                                                </span></b>"<st1:personname
                                                w:st="on">Discussion of
                                                biomass cooking stoves</st1:personname>"
                                              <<a
                                                moz-do-not-send="true"
                                                href="mailto:stoves@lists.bioenergylists.org"
                                                target="_blank">stoves@lists.bioenergylists.org</a>><br>
                                              <b><span
                                                  style="font-weight:bold">Sent:
                                                </span></b>Monday,
                                              August 8, 2011
                                              9:56:48 AM<br>
                                              <b><span
                                                  style="font-weight:bold">Subject:
                                                </span></b>Re: [Stoves]
                                              Jatropha and
                                              its future</span></font><o:p></o:p></p>
                                        <div>
                                          <p class="MsoNormal"
                                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                                              size="3" face="Arial"
                                              color="black"><span
                                                style="font-size:12.0pt;font-family:Arial;
                                                color:black">Roger</span></font><o:p></o:p></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"
                                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                                              size="3" face="Arial"
                                              color="black"><span
                                                style="font-size:12.0pt;font-family:Arial;
                                                color:black"> </span></font><o:p></o:p></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"
                                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                                              size="3" face="Arial"
                                              color="black"><span
                                                style="font-size:12.0pt;font-family:Arial;
                                                color:black">That stove
                                                in the ETHOS pictures
                                                was a prototype version.
                                                The
                                                stove is now made from
                                                steel. </span></font><o:p></o:p></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"
                                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                                              size="3" face="Arial"
                                              color="black"><span
                                                style="font-size:12.0pt;font-family:Arial;
                                                color:black"> </span></font><o:p></o:p></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"
                                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                                              size="3" face="Arial"
                                              color="black"><span
                                                style="font-size:12.0pt;font-family:Arial;
                                                color:black">Jan<br>
                                                <br>
                                                Sent from my iPhone</span></font><o:p></o:p></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"
                                            style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><font
                                              size="3" face="Arial"
                                              color="black"><span
                                                style="font-size:12.0pt;font-family:Arial;
                                                color:black"><br>
                                                On Aug 8, 2011, at 8:51
                                                AM, Fireside Hearth <<a
                                                  moz-do-not-send="true"
href="mailto:firesidehearthvashon@hotmail.com" target="_blank">firesidehearthvashon@hotmail.com</a>>
                                                wrote:</span></font><o:p></o:p></p>
                                        </div>
                                        <blockquote
                                          style="margin-top:5.0pt;margin-bottom:5.0pt">
                                          <div>
                                            <div>
                                              <p class="MsoNormal"
                                                style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><font
                                                  size="3" face="Arial"
                                                  color="black"><span
                                                    style="font-size:12.0pt;font-family:Arial;
                                                    color:black">Good
                                                    morning....<br>
                                                    <br>
                                                    I am curious about a
                                                    couple of the
                                                    pictures of the
                                                    stove by Otto....do
                                                    I see
                                                    galvanized sheet
                                                    metal used in area's
                                                    of high heat? the
                                                    text talks about
                                                    800deg
                                                    C. (1472 f.) if
                                                    there is galvanized
                                                    materials in contact
                                                    with these temps it
                                                    is
                                                    quite possible that
                                                    galvanic poisoning
                                                    could kill the
                                                    operator. A friend
                                                    of
                                                    mine was welding
                                                    inside a galvanized
                                                    pipe (large culvert
                                                    for water drainage)
                                                    when his oxygen mask
                                                    failed and a green
                                                    colored gas entered
                                                    his lungs causing
                                                    him some of the most
                                                    horrible pain and
                                                    near death
                                                    experience
                                                    imaginable. The
                                                    other question I
                                                    have is the material
                                                    thickness. It does
                                                    not look like this
                                                    will withstand these
                                                    temperatures for
                                                    long. What is the
                                                    life expectancy of
                                                    this
                                                    unit when exposed to
                                                    these temps. Does it
                                                    make sense to build
                                                    something a bit
                                                    more stout and send
                                                    less of them to the
                                                    land fill as the
                                                    "burn out"
                                                    too quickly with
                                                    these exposures. Not
                                                    all ways can we
                                                    value things simply
                                                    on
                                                    "cost per unit" but
                                                    "cost to the
                                                    environment" should
                                                    be
                                                    taken into account.
                                                    After looking at the
                                                    industrial area's of
                                                    northern <st1:country-region
                                                      w:st="on"><st1:place
                                                        w:st="on">China</st1:place></st1:country-region>
                                                    it seems
                                                    to me that it is the
                                                    environment which is
                                                    paying for our
                                                    "cheap" flat
                                                    screens.  </span></font><o:p></o:p></p>
                                              <div>
                                                <div class="MsoNormal"
                                                  style="text-align:center"
                                                  align="center"><font
                                                    size="3"
                                                    face="Arial"
                                                    color="black"><span
style="font-size:12.0pt;font-family:Arial;
                                                      color:black">
                                                      <hr size="2"
                                                        width="100%"
                                                        align="center">
                                                    </span></font></div>
                                                <p class="MsoNormal"
                                                  style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><font
                                                    size="3"
                                                    face="Arial"
                                                    color="black"><span
style="font-size:12.0pt;font-family:Arial;
                                                      color:black">From:
                                                      <a
                                                        moz-do-not-send="true"
href="mailto:janbianchi@comcast.net" target="_blank">janbianchi@comcast.net</a><br>
                                                      Date: Mon, 8 Aug
                                                      2011 08:08:37
                                                      -0700<br>
                                                      To: <a
                                                        moz-do-not-send="true"
href="mailto:stoves@lists.bioenergylists.org" target="_blank">stoves@lists.bioenergylists.org</a><br>
                                                      Subject: Re:
                                                      [Stoves] Jatropha
                                                      and its future</span></font><o:p></o:p></p>
                                                <div>
                                                  <p class="MsoNormal"
                                                    style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><st1:placename
                                                      w:st="on"><font
                                                        size="3"
                                                        face="Arial"
                                                        color="black"><span
                                                          style="font-size:12.0pt;

font-family:Arial;color:black">Jet</span></font></st1:placename><font
                                                      face="Arial"
                                                      color="black"><span
style="font-family:Arial;color:black"> <st1:placetype w:st="on">City</st1:placetype>
                                                        StoveWorks is
                                                        currently
                                                        conducting
                                                        kitchen tests
                                                        of the jatropha
                                                        seed stove Marc
                                                        refers to in <st1:country-region
                                                          w:st="on"><st1:place
                                                          w:st="on">Tanzania</st1:place></st1:country-region>.</span></font><o:p></o:p></p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal"
                                                    style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                                                      size="3"
                                                      face="Arial"
                                                      color="black"><span
style="font-size:12.0pt;font-family:Arial;
                                                        color:black"> </span></font><o:p></o:p></p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal"
                                                    style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                                                      size="3"
                                                      face="Arial"
                                                      color="black"><span
style="font-size:12.0pt;font-family:Arial;
                                                        color:black">  Jatropha
                                                        grows wild
                                                        throughout the
                                                        tropics as well
                                                        as
                                                        recently as
                                                        biodiesel  crop
                                                        there.
                                                        Alternatively,
                                                        and more
                                                        productively,
                                                         it can be grown
                                                        as a hedge
                                                        around land
                                                        holdings so it
                                                        need
                                                        not displace
                                                        land for food
                                                        production.
                                                         That produces
                                                        enough seed to
                                                        fuel
                                                        the family
                                                        cookstove for a
                                                        year as well as
                                                        have some left
                                                        over to sell
                                                        into the
                                                        Jatropha market.
                                                        It costs at
                                                        least four times
                                                        less than a
                                                        comparable burn
                                                        time
                                                        for wood and six
                                                        times less than
                                                        charcoal.</span></font><o:p></o:p></p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal"
                                                    style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                                                      size="3"
                                                      face="Arial"
                                                      color="black"><span
style="font-size:12.0pt;font-family:Arial;
                                                        color:black"> </span></font><o:p></o:p></p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal"
                                                    style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                                                      size="3"
                                                      face="Arial"
                                                      color="black"><span
style="font-size:12.0pt;font-family:Arial;
                                                        color:black">We
                                                        are continuing
                                                        CO and PM
                                                        testing and hope
                                                        to have our test
                                                        results online
                                                        by next month.
                                                         We had a stove
                                                        at Aprovecho's
                                                        stove camp
                                                        couple of weeks
                                                        ago and will
                                                        have one at Paul
                                                        Anderson's TLUD
                                                        camp in MA in
                                                        August. </span></font><o:p></o:p></p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal"
                                                    style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                                                      size="3"
                                                      face="Arial"
                                                      color="black"><span
style="font-size:12.0pt;font-family:Arial;
                                                        color:black">Sent
                                                        from my iPhone</span></font><o:p></o:p></p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal"
                                                    style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><font
                                                      size="3"
                                                      face="Arial"
                                                      color="black"><span
style="font-size:12.0pt;font-family:Arial;
                                                        color:black"><br>
                                                        On Aug 8, 2011,
                                                        at 2:10 AM, Marc
                                                        Pare <<a
                                                          moz-do-not-send="true"
href="mailto:mpare@gatech.edu" target="_blank">mpare@gatech.edu</a>>
                                                        wrote:</span></font><o:p></o:p></p>
                                                </div>
                                                <blockquote
                                                  style="margin-top:5.0pt;margin-bottom:5.0pt">
                                                  <div>
                                                    <p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                                                        size="3"
                                                        face="Arial"
                                                        color="black"><span
style="font-size:12.0pt;font-family:Arial;
                                                          color:black">Crispin,
                                                          re exisiting
                                                          Jatropha
                                                          stoves:</span></font><o:p></o:p></p>
                                                    <div>
                                                      <p
                                                        class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                                                          size="3"
                                                          face="Arial"
                                                          color="black"><span
style="font-size:12.0pt;font-family:Arial;
                                                          color:black"> </span></font><o:p></o:p></p>
                                                    </div>
                                                    <div>
                                                      <p
                                                        class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                                                          size="3"
                                                          face="Arial"
                                                          color="black"><span
style="font-size:12.0pt;font-family:Arial;
                                                          color:black">There
                                                          was this one
                                                          at ETHOS this
                                                          year by J.
                                                          Otto and
                                                          friends:</span></font><o:p></o:p></p>
                                                    </div>
                                                    <div>
                                                      <p
                                                        class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                                                          size="3"
                                                          face="Arial"
                                                          color="black"><span
style="font-size:12.0pt;font-family:Arial;
                                                          color:black"><a
moz-do-not-send="true"
href="http://www.vrac.iastate.edu/ethos/proceedings2011/OttoOttoCovert_JatrophaSeedCookingStoveDevelopmentPromotion.pdf"
target="_blank">http://www.vrac.iastate.edu/ethos/proceedings2011/OttoOttoCovert_JatrophaSeedCookingStoveDevelopmentPromotion.pdf</a></span></font><o:p></o:p></p>
                                                    </div>
                                                    <div>
                                                      <p
                                                        class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                                                          size="3"
                                                          face="Arial"
                                                          color="black"><span
style="font-size:12.0pt;font-family:Arial;
                                                          color:black">and
                                                          a quick
                                                          picture of it
                                                          running
                                                          outside in <st1:city
                                                          w:st="on"><st1:place
                                                          w:st="on">Kirkland</st1:place></st1:city>:</span></font><o:p></o:p></p>
                                                    </div>
                                                    <div>
                                                      <p
                                                        class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                                                          size="3"
                                                          face="Arial"
                                                          color="black"><span
style="font-size:12.0pt;font-family:Arial;
                                                          color:black"><a
moz-do-not-send="true"
href="http://smallredtile.tumblr.com/post/3246717546/marc-in-the-wild-there-were-many-arguments-about"
target="_blank">http://smallredtile.tumblr.com/post/3246717546/marc-in-the-wild-there-were-many-arguments-about</a></span></font><o:p></o:p></p>
                                                    </div>
                                                    <div>
                                                      <p
                                                        class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                                                          size="3"
                                                          face="Arial"
                                                          color="black"><span
style="font-size:12.0pt;font-family:Arial;
                                                          color:black"> </span></font><o:p></o:p></p>
                                                    </div>
                                                    <div>
                                                      <p
                                                        class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                                                          size="3"
                                                          face="Arial"
                                                          color="black"><span
style="font-size:12.0pt;font-family:Arial;
                                                          color:black">It
                                                          burns whole
                                                          seeds in a
                                                          natural draft
                                                          TLUD. Draft is
                                                          augmented
                                                          by an inner
                                                          air pipe (lots
                                                          of pictures of
                                                          the assembly
                                                          in the ETHOS
                                                          presentation)</span></font><o:p></o:p></p>
                                                    </div>
                                                    <div>
                                                      <p
                                                        class="MsoNormal"
style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><font size="3"
                                                          face="Arial"
                                                          color="black"><span
style="font-size:12.0pt;font-family:Arial;
                                                          color:black"><br
                                                          clear="all">
                                                          Marc Paré<br>
                                                          B.S.
                                                          Mechanical
                                                          Engineering<br>
                                                          Georgia
                                                          Institute of
                                                          Technology |
                                                          Université de
                                                          Technologie de
                                                          Compiègne<br>
                                                          <br>
                                                          my cv, etc. |
                                                          <a
                                                          moz-do-not-send="true"
href="http://notwandering.com" target="_blank">http://notwandering.com</a></span></font><o:p></o:p></p>
                                                      <div>
                                                        <p
                                                          class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                                                          size="3"
                                                          face="Arial"
                                                          color="black"><span
style="font-size:12.0pt;font-family:Arial;
                                                          color:black">On
                                                          Mon, Aug 8,
                                                          2011 at 1:36
                                                          AM, Crispin
                                                          Pemberton-Pigott
                                                          <<a
                                                          moz-do-not-send="true"
href="mailto:crispinpigott@gmail.com" target="_blank">crispinpigott@gmail.com</a>>
                                                          wrote:</span></font><o:p></o:p></p>
                                                        <div>
                                                          <div>
                                                          <p><font
                                                          size="3"
                                                          face="Arial"
                                                          color="black"><span
style="font-size:12.0pt;
font-family:Arial;color:black" lang="EN-CA">Dear Friends</span></font><o:p></o:p></p>
                                                          <p><font
                                                          size="3"
                                                          face="Arial"
                                                          color="black"><span
style="font-size:12.0pt;
font-family:Arial;color:black" lang="EN-CA">I am not sure how many stove
                                                          are being
                                                          worked on
                                                          as Jatropha
                                                          seed or oil or
                                                          cake burners,
                                                          but my
                                                          understanding
                                                          was the main
                                                          thrust was to
                                                          put to use
                                                          some of the
                                                          leftovers from
                                                          biofuel
                                                          production,
                                                          especially
                                                          that was the
                                                          focus in
                                                          Tanzania.</span></font><o:p></o:p></p>
                                                          <p><font
                                                          size="3"
                                                          face="Arial"
                                                          color="black"><span
style="font-size:12.0pt;
font-family:Arial;color:black" lang="EN-CA">It seems those farmers who
                                                          invested in
                                                          Jatropha
                                                          production
                                                          lost about $65
                                                          per ha <a
                                                          moz-do-not-send="true"
href="http://pubs.acs.org/doi/full/10.1021/es201943v" target="_blank">http://pubs.acs.org/doi/full/10.1021/es201943v</a>
                                                          so my question
                                                          is whether or
                                                          not there is
                                                          much point in
                                                          working on
                                                          (perhaps)
                                                          whole seed
                                                          stoves.
                                                          Perhaps if the
                                                          J-oil industry
                                                          suffers a
                                                          quick death
                                                          there
                                                          will still be
                                                          a meaningful
                                                          supply of oily
                                                          seed fuel
                                                          that  can be
                                                          burned
                                                          relatively
                                                          easily with a
                                                          decent
                                                          performance
                                                          and
                                                          controllability.
                                                          At least until
                                                          they go back
                                                          to sunflower
                                                          which looks a
                                                          lot more
                                                          promising.</span></font><o:p></o:p></p>
                                                          <p><font
                                                          size="3"
                                                          face="Arial"
                                                          color="black"><span
style="font-size:12.0pt;
font-family:Arial;color:black" lang="EN-CA">Has anyone made a sunflower
                                                          seed burning
                                                          stove?
                                                          The oil runs
                                                          up to 49% on
                                                          some
                                                          varieties.</span></font><o:p></o:p></p>
                                                          <p><font
                                                          size="3"
                                                          face="Arial"
                                                          color="black"><span
style="font-size:12.0pt;
font-family:Arial;color:black" lang="EN-CA">Always looking for new
                                                          ideas…</span></font><o:p></o:p></p>
                                                          <p><font
                                                          size="3"
                                                          face="Arial"
                                                          color="black"><span
style="font-size:12.0pt;
font-family:Arial;color:black" lang="EN-CA">Regards</span></font><o:p></o:p></p>
                                                          <p><font
                                                          size="3"
                                                          face="Arial"
                                                          color="black"><span
style="font-size:12.0pt;
font-family:Arial;color:black" lang="EN-CA">Crispin</span></font><o:p></o:p></p>
                                                          <p><font
                                                          size="1"
                                                          face="Garamond"
                                                          color="black"><span
style="font-size:
8.0pt;font-family:Garamond;color:black" lang="EN-CA"> </span></font><o:p></o:p></p>
                                                          <p><font
                                                          size="3"
                                                          face="Arial"
                                                          color="black"><span
style="font-size:12.0pt;
font-family:Arial;color:black" lang="EN-CA"> </span></font><o:p></o:p></p>
                                                          </div>
                                                        </div>
                                                        <p
                                                          class="MsoNormal"
style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><font size="3"
                                                          face="Arial"
                                                          color="black"><span
style="font-size:12.0pt;font-family:Arial;
                                                          color:black"><br>
_______________________________________________<br>
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                                                      <p
                                                        class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                                                          size="3"
                                                          face="Arial"
                                                          color="black"><span
style="font-size:12.0pt;font-family:Arial;
                                                          color:black"> </span></font><o:p></o:p></p>
                                                    </div>
                                                  </div>
                                                </blockquote>
                                                <blockquote
                                                  style="margin-top:5.0pt;margin-bottom:5.0pt">
                                                  <div>
                                                    <p class="MsoNormal"
style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><font size="3"
                                                        face="Arial"
                                                        color="black"><span
style="font-size:12.0pt;font-family:Arial;
                                                          color:black">_______________________________________________<br>
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                                                  </div>
                                                </blockquote>
                                                <p class="MsoNormal"
                                                  style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
                                                    size="3"
                                                    face="Arial"
                                                    color="black"><span
style="font-size:12.0pt;font-family:Arial;
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moz-do-not-send="true" href="http://www.bioenergylists.org/"
                                                        target="_blank">http://www.bioenergylists.org/</a>_______________________________________________Stoves
mailing
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                                            <p class="MsoNormal"
                                              style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><font
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                            <br>
                            <o:p></o:p></span></font></p>
                    </div>
                  </div>
                  <br>
                  <fieldset class="mimeAttachmentHeader"></fieldset>
                  <br>
                  <pre wrap="">_______________________________________________
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</pre>
                </o:smarttagtype></o:smarttagtype></o:smarttagtype></o:smarttagtype></o:smarttagtype></o:smarttagtype></blockquote>
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