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    Ron and all,<br>
    <br>
    I am studying the limited info about the Sun Bucket, and finding
    enough to agree that it could well be compatible with TLUD stoves
    (and to a lesser extent with other biomass stove-types.).   So it is
    not "off-topic" if, as Ron says, it can relate to biomass stoves.<br>
    <br>
    I doubt that it is only $50 if including a 1.5 meter solar dish.<br>
    <br>
    I will report back after I have direct contact with the company.<br>
    <br>
    Paul<br>
    <pre class="moz-signature" cols="72">Doc  /  Dr TLUD  /  Prof. Paul S. Anderson, PhD
Email:  <a class="moz-txt-link-abbreviated" href="mailto:psanders@ilstu.edu">psanders@ilstu.edu</a>
Skype:   paultlud    Phone: +1-309-452-7072
Website:  <a class="moz-txt-link-abbreviated" href="http://www.drtlud.com">www.drtlud.com</a></pre>
    <div class="moz-cite-prefix">On 1/3/2017 7:30 PM, Ronal W. Larson
      wrote:<br>
    </div>
    <blockquote
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      type="cite">
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      <div class="">David and list  - and cc some solar cooking friends</div>
      <div class=""><br class="">
      </div>
      <div class=""><span class="Apple-tab-span" style="white-space:pre">     </span>Congratulations
        on this modification of the usual solar cooker.  And on the two
        awards that Sun Buckets has already won.</div>
      <div class=""><br class="">
      </div>
      <div class=""><span class="Apple-tab-span" style="white-space:pre">     </span>It
        might seem you are on the wrong list - as we get little traffic
        re solar cookers - and our “biomass” address would suggest this
        is normally be the wrong place.   But I see three connections
        (that I have mentioned recently to the ccs), that make this
        entirely appropriate for out stove list.</div>
      <div class=""><br class="">
      </div>
      <div class=""><span class="Apple-tab-span" style="white-space:pre">     </span>a).
         There could be reasons to employ the same storage concept at a
        family (maybe neighborhood) level with any form of biomass
        stove.  I think it would fit especially well with TLUD stoves -
        as they could be designed at a large (one full day of cooking)
        size - and one day’s cooking could be much less time consuming
        than at present.  No solar involvement at all in approach a).</div>
      <div class=""><br class="">
      </div>
      <div class=""><span class="Apple-tab-span" style="white-space:pre">     </span>b).
          There could be good reason for option a)  (such as very high
        fuel costs) to also want to couple a fully biomass approach with
        (zero fuel cost ) solar.  </div>
      <div class=""><br class="">
      </div>
      <div class=""><span class="Apple-tab-span" style="white-space:pre">     </span>c).
          Every solar option needs a backup - and biomass is the usual
        choice (except in the USA).</div>
      <div class=""><span class="Apple-tab-span" style="white-space:pre">                     </span>The
        backup need not make charcoal - but the solar cookers can never
        be carbon negative;  TLUDs can make that happen.  Which won’t
        happen normally with a liquid (LPG) etc.</div>
      <div class=""><br class="">
      </div>
      <div class=""><span class="Apple-tab-span" style="white-space:pre">     </span>So
        I’d like to continue this dialog with anyone interested.
         Because of all the option a), b), c) possibilities,  this
        dialog could remain on this list.  I suggest we stay away from
        the solar-only topic you brought to us.  And we can leave this
        list if a few think it is detracting from our biomass stove
        dialog.</div>
      <div class=""><br class="">
      </div>
      <div class=""><span class="Apple-tab-span" style="white-space:pre">     </span>I
        was employed at what is now NREL in Golden Colorado and have
        several friends with extensive experience in high temperature
        thermal storage (even little myself). I’ve been a member of SCI
        on and off.</div>
      <div class=""><br class="">
      </div>
      <div class=""><span class="Apple-tab-span" style="white-space:pre">     </span>My
        friend Dr. Salih Hamadto (in Khartoum Sudan) has sold many
        concentrators of the Scheffler variety - which I think might end
        up being a preferred approach -  instead of paraboloids.  All
        the ccs know about biochar - which I think has a much more
        natural fit with your nice idea than our rocket enthusiasts.</div>
      <div class=""><br class="">
      </div>
      <div class="">Ron</div>
      <div class=""><br class="">
      </div>
      <div class=""><br class="">
      </div>
      <div class=""><br class="">
      </div>
      <br class="">
      <div>
        <blockquote type="cite" class="">
          <div class="">On Jan 3, 2017, at 12:51 PM, David Stein <<a
              moz-do-not-send="true" href="mailto:ambwat@gmail.com"
              class="">ambwat@gmail.com</a>> wrote:</div>
          <br class="Apple-interchange-newline">
          <div class="">
            <div dir="ltr" class="">
              <p class="MsoNormal"><span
                  style="font-family:"arial","sans-serif""
                  class="">D<font class="" size="2">ear All,</font></span></p>
              <p class="MsoNormal"><span
                  style="font-family:"arial","sans-serif""
                  class=""><font class="" size="2"><br class="">
                  </font></span></p>
              <font class="" size="2">
              </font>
              <p class="MsoNormal"><font class="" size="2"><span
style="line-height:115%;font-family:"arial","sans-serif""
                    class="">I am a newcomer to the Stoves list but I’ve
                    spent some
                    time in the household energy sector in developing
                    Vanuatu which is where I met
                    Nikhil.</span></font></p>
              <p class="MsoNormal"><font class="" size="2"><span
style="line-height:115%;font-family:"arial","sans-serif""
                    class=""><br class="">
                  </span></font></p>
              <font class="" size="2">
              </font>
              <p class="MsoNormal" style="line-height:normal"><font
                  class="" size="2"><span
                    style="font-family:"arial","sans-serif""
                    class="">I am fascinated by solar cooking these
                    days.<span class="">  </span>There are many
                    potential socio-economic and
                    environmental benefits of solar cooking and they are
                    all very seductive.<span class="">  </span>Just
                    thinking about fuel-free and
                    emission-free cooking is intoxicating.</span></font></p>
              <p class="MsoNormal" style="line-height:normal"><font
                  class="" size="2"><span
                    style="font-family:"arial","sans-serif""
                    class=""><br class="">
                  </span></font></p>
              <font class="" size="2">
              </font>
              <p class="MsoNormal" style="line-height:normal"><font
                  class="" size="2"><span
                    style="font-family:"arial","sans-serif""
                    class="">However, it seems that it is difficult to
                    achieve the potential benefits of solar cooking
                    (especially in the developing
                    world) largely because those that dwell in hot
                    climates (which is where much of
                    the developing world seems to be located) have
                    developed lifestyles that
                    minimize exposure to the sun whereas most methods of
                    solar cooking require the
                    cook to be out in the sun, often at times of the day
                    that aren’t typical
                    cooking times.<span class="">  </span>These facts
                    make the
                    difficult task of changing the cooking habits of
                    cooks even more challenging.</span></font></p>
              <p class="MsoNormal" style="line-height:normal"><font
                  class="" size="2"><span
                    style="font-family:"arial","sans-serif""
                    class=""><br class="">
                  </span></font></p>
              <font class="" size="2">
              </font>
              <p class="MsoNormal" style="line-height:normal"><font
                  class="" size="2"><span
                    style="font-family:"arial","sans-serif""
                    class="">But it appears as though the Sun Bucket </span><a
                    moz-do-not-send="true"
                    href="http://www.sunbuckets.com/" class=""><span
                      style="font-family:"arial","sans-serif""
                      class="">http://www.sunbuckets.com/</span></a><span
style="font-family:"arial","sans-serif"" class=""><span
                      class="">  </span>“cracks all of these nuts.”<span
                      class="">  </span>This amazing innovation is
                    “charged” with the
                    heat of sunshine and the heat is stored in a “sun
                    bucket” (phase change
                    “”battery”) where it can be used when (like in the
                    evening or early morning)
                    and where (like inside a kitchen) it is needed.<span
                      class=""> 
                    </span>It cooks as hot as cooking on fire and
                    existing cooking pots and pans
                    can be used so there is minimal need for changes in
                    cooking behavior.<span class="">  </span>It also
                    seems very affordable.<span class="">  </span>I
                    guess it’s what they call transformational. <br
                      class="">
                  </span></font></p>
              <p class="MsoNormal" style="line-height:normal"><font
                  class="" size="2"><span
                    style="font-family:"arial","sans-serif""
                    class=""><br class="">
                  </span></font></p>
              <font class="" size="2">
              </font>
              <p class="MsoNormal" style="line-height:normal"><font
                  class="" size="2"><span
                    style="font-family:"arial","sans-serif""
                    class="">It looks as though a Sun Bucket should be a
                    part of every integrated coking scheme (solar
                    cooking when it's sunny, using an
                    Improved Cook Stove when it's not, and maybe using a
                    retained heat cooker with
                    both) everywhere the sun shines in the developing
                    world.<span class="">  </span>I can hardly wait for
                    the Sun Bucket to be
                    unleashed to the world-wide market of cooks that
                    could really use them.</span></font></p>
              <p class="MsoNormal" style="line-height:normal"><font
                  class="" size="2"><span
                    style="font-family:"arial","sans-serif""
                    class=""><br class="">
                  </span></font></p>
              <font class="" size="2">
              </font>
              <p class="MsoNormal" style="line-height:normal"><font
                  class="" size="2"><span
                    style="font-family:"arial","sans-serif""
                    class="">Best wishes for the coming year.</span></font></p>
              <font class="" size="2">
              </font>
              <p class="MsoNormal" style="line-height:normal"><font
                  class="" size="2"><span
                    style="font-family:"arial","sans-serif""
                    class="">David Stein</span></font></p>
            </div>
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