<html>
  <head>
    <meta content="text/html; charset=ISO-8859-1"
      http-equiv="Content-Type">
  </head>
  <body bgcolor="#FFFFFF" text="#000000">
    <div class="moz-cite-prefix">G'day Paul,<br>
      <br>
      I think the idea has merit, as it reduces the parasitic energy
      consumption, cost(?) and maintenance, but I am not sure how well
      it will work. What size digester are you talking about? The other
      difficulty is that you want your heater below the digester coils
      to get circulation and you also want your digester coils to be at
      the base of the digester to get convective mixing within the
      digester.<br>
      <br>
      All the best,<br>
      HOOROO<br>
      <pre class="moz-signature" cols="72">Mr Paul Harris BEng (Ag) (Melbourne)
Visitor at The University of Adelaide</pre>
      On 15/11/2012 6:33 PM, Paul Muthui wrote:<br>
    </div>
    <blockquote
cite="mid:CAJAkcuTQdaQgmAvVaC_Qwqdm702atW4SKKZUzvQVX-nhM4kTjw@mail.gmail.com"
      type="cite">
      <meta http-equiv="Content-Type" content="text/html;
        charset=ISO-8859-1">
      Good Day All,
      <div><br>
      </div>
      <div>I am looking into ways if heating my biogas digester to
        increase specific gas yield. I have thought of using a
        thermosiphon, whereby I heat my primary liquid and then pass it
        through coils inside the digester. </div>
      <div><br>
      </div>
      <div>Has anyone done this before and what would be the expected
        efficiency of such? Is it an idea worth pursuing? <br>
        -- <br>
        <font color="#6633ff"><b>Best Regards</b>,                      
                                </font>
        <div>
          <font color="#6633ff"><br>
          </font></div>
        <div><font color="#6633ff">                                     
                                                                       
                  </font></div>
        <div>
          <div>
            <div><font color="#6633ff" face="verdana, sans-serif"><b>Paul
                  S. Muthui</b></font></div>
          </div>
          <div><b><font color="#6633ff" face="'comic sans ms',
                sans-serif">Research & Development Engineer</font></b></div>
          <div><font color="#6633ff"><b><font face="'comic sans ms',
                  sans-serif">Schutter Energy Ltd.</font></b></font></div>
          <div><font color="#6633ff"><b><font face="'comic sans ms',
                  sans-serif">P.O </font></b><b><font face="'comic sans
                  ms', sans-serif">Box 50178 - 00100, Nairob</font><font
                  face="'comic sans ms', sans-serif">i</font></b></font></div>
          <div><b><font color="#6633ff" face="'comic sans ms',
                sans-serif">Tel: 0738 689 78</font><font color="#9999ff"
                face="'comic sans ms', sans-serif">8</font></b></div>
          <div><br>
          </div>
          <div><font color="#6633ff"><b>Mobil</b><b>e: 0724 815</b><b>594</b></font></div>
          <div><a moz-do-not-send="true"
              href="mailto:paul@takamotobiogas.com" target="_blank">paul@takamotobiogas.com</a></div>
          <div><a moz-do-not-send="true"
              href="http://www.takamotobiogas.com" target="_blank">www.takamotobiogas.com</a> </div>
        </div>
        <div><br>
        </div>
        <div>                     <img moz-do-not-send="true"
src="https://docs.google.com/a/takamotobiogas.com/viewer?attid=0.1.1&pid=gmail&thid=1379cded1cbbf255&url=https%3A%2F%2Fmail.google.com%2Fmail%2F%3Fui%3D2%26ik%3Dd5a0116de6%26view%3Datt%26th%3D1379cded1cbbf255%26attid%3D0.1.1%26disp%3Dsafe%26zw&docid=0ec984d693f8acce7b56c1ba104f00e1%7C4c8246701dae9f8409e8529bad9758f5&a=bi&pagenumber=1&w=800"
            width="420" height="128"> </div>
        <div><br>
        </div>
        <br>
      </div>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <br>
      <pre wrap="">_______________________________________________
Digestion mailing list

to Send a Message to the list, use the email address
<a class="moz-txt-link-abbreviated" href="mailto:Digestion@bioenergylists.org">Digestion@bioenergylists.org</a>

to UNSUBSCRIBE or Change your List Settings use the web page
<a class="moz-txt-link-freetext" href="http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org">http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org</a>

for more information about digestion, see
Beginner's Guide to Biogas
<a class="moz-txt-link-freetext" href="http://www.adelaide.edu.au/biogas/">http://www.adelaide.edu.au/biogas/</a>
and the Biogas Wiki <a class="moz-txt-link-freetext" href="http://biogas.wikispaces.com/">http://biogas.wikispaces.com/</a>

</pre>
    </blockquote>
    <br>
  </body>
</html>