<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML xmlns="http://www.w3.org/TR/REC-html40" xmlns:v =
"urn:schemas-microsoft-com:vml" xmlns:o =
"urn:schemas-microsoft-com:office:office" xmlns:w =
"urn:schemas-microsoft-com:office:word" xmlns:x =
"urn:schemas-microsoft-com:office:excel" xmlns:p =
"urn:schemas-microsoft-com:office:powerpoint" xmlns:a =
"urn:schemas-microsoft-com:office:access" xmlns:dt =
"uuid:C2F41010-65B3-11d1-A29F-00AA00C14882" xmlns:s =
"uuid:BDC6E3F0-6DA3-11d1-A2A3-00AA00C14882" xmlns:rs =
"urn:schemas-microsoft-com:rowset" xmlns:z = "#RowsetSchema" xmlns:b =
"urn:schemas-microsoft-com:office:publisher" xmlns:ss =
"urn:schemas-microsoft-com:office:spreadsheet" xmlns:c =
"urn:schemas-microsoft-com:office:component:spreadsheet" xmlns:odc =
"urn:schemas-microsoft-com:office:odc" xmlns:oa =
"urn:schemas-microsoft-com:office:activation" xmlns:html =
"http://www.w3.org/TR/REC-html40" xmlns:q =
"http://schemas.xmlsoap.org/soap/envelope/" xmlns:rtc =
"http://microsoft.com/officenet/conferencing" XMLNS:D = "DAV:" XMLNS:Repl =
"http://schemas.microsoft.com/repl/" xmlns:mt =
"http://schemas.microsoft.com/sharepoint/soap/meetings/" xmlns:x2 =
"http://schemas.microsoft.com/office/excel/2003/xml" xmlns:ppda =
"http://www.passport.com/NameSpace.xsd" xmlns:ois =
"http://schemas.microsoft.com/sharepoint/soap/ois/" xmlns:dir =
"http://schemas.microsoft.com/sharepoint/soap/directory/" xmlns:ds =
"http://www.w3.org/2000/09/xmldsig#" xmlns:dsp =
"http://schemas.microsoft.com/sharepoint/dsp" xmlns:udc =
"http://schemas.microsoft.com/data/udc" xmlns:xsd =
"http://www.w3.org/2001/XMLSchema" xmlns:sub =
"http://schemas.microsoft.com/sharepoint/soap/2002/1/alerts/" xmlns:ec =
"http://www.w3.org/2001/04/xmlenc#" xmlns:sp =
"http://schemas.microsoft.com/sharepoint/" xmlns:sps =
"http://schemas.microsoft.com/sharepoint/soap/" xmlns:xsi =
"http://www.w3.org/2001/XMLSchema-instance" xmlns:udcs =
"http://schemas.microsoft.com/data/udc/soap" xmlns:udcxf =
"http://schemas.microsoft.com/data/udc/xmlfile" xmlns:udcp2p =
"http://schemas.microsoft.com/data/udc/parttopart" xmlns:wf =
"http://schemas.microsoft.com/sharepoint/soap/workflow/" xmlns:dsss =
"http://schemas.microsoft.com/office/2006/digsig-setup" xmlns:dssi =
"http://schemas.microsoft.com/office/2006/digsig" xmlns:mdssi =
"http://schemas.openxmlformats.org/package/2006/digital-signature" xmlns:mver =
"http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:m =
"http://schemas.microsoft.com/office/2004/12/omml" xmlns:mrels =
"http://schemas.openxmlformats.org/package/2006/relationships" xmlns:spwp =
"http://microsoft.com/sharepoint/webpartpages" xmlns:ex12t =
"http://schemas.microsoft.com/exchange/services/2006/types" xmlns:ex12m =
"http://schemas.microsoft.com/exchange/services/2006/messages" xmlns:pptsl =
"http://schemas.microsoft.com/sharepoint/soap/SlideLibrary/" xmlns:spsl =
"http://microsoft.com/webservices/SharePointPortalServer/PublishedLinksService"
XMLNS:Z = "urn:schemas-microsoft-com:" xmlns:st = ""><HEAD>
<META content="text/html; charset=iso-8859-1" http-equiv=Content-Type>
<META name=GENERATOR content="MSHTML 8.00.6001.23507">
<STYLE>@font-face {
font-family: Cambria Math;
}
@font-face {
font-family: Calibri;
}
@page WordSection1 {size: 612.0pt 792.0pt; margin: 72.0pt 72.0pt 72.0pt 72.0pt; }
P.MsoNormal {
MARGIN: 0mm 0mm 0pt; FONT-FAMILY: "Times New Roman","serif"; FONT-SIZE: 12pt
}
LI.MsoNormal {
MARGIN: 0mm 0mm 0pt; FONT-FAMILY: "Times New Roman","serif"; FONT-SIZE: 12pt
}
DIV.MsoNormal {
MARGIN: 0mm 0mm 0pt; FONT-FAMILY: "Times New Roman","serif"; FONT-SIZE: 12pt
}
A:link {
COLOR: blue; TEXT-DECORATION: underline; mso-style-priority: 99
}
SPAN.MsoHyperlink {
COLOR: blue; TEXT-DECORATION: underline; mso-style-priority: 99
}
A:visited {
COLOR: purple; TEXT-DECORATION: underline; mso-style-priority: 99
}
SPAN.MsoHyperlinkFollowed {
COLOR: purple; TEXT-DECORATION: underline; mso-style-priority: 99
}
P {
FONT-FAMILY: "Times New Roman","serif"; MARGIN-LEFT: 0mm; FONT-SIZE: 12pt; MARGIN-RIGHT: 0mm; mso-style-priority: 99; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto
}
SPAN.EmailStyle18 {
FONT-FAMILY: "Calibri","sans-serif"; COLOR: #1f497d; mso-style-type: personal
}
SPAN.EmailStyle19 {
FONT-FAMILY: "Calibri","sans-serif"; COLOR: #1f497d; mso-style-type: personal-reply
}
.MsoChpDefault {
FONT-SIZE: 10pt; mso-style-type: export-only
}
DIV.WordSection1 {
page: WordSection1
}
</STYLE>
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></HEAD>
<BODY lang=EN-CA link=blue bgColor=white vLink=purple>
<DIV><FONT size=4>Crispin,</FONT></DIV>
<DIV><FONT size=4>I do not have that information. I did that 3 years
ago.</FONT></DIV>
<DIV><FONT size=4>Also I did not use my best burner.</FONT></DIV>
<DIV><FONT size=4>I need to get back to that design it has
potential.</FONT></DIV>
<DIV><FONT size=4>Lanny</FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=crispinpigott@gmail.com href="mailto:crispinpigott@gmail.com">Crispin
Pemberton-Pigott</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=stoves@lists.bioenergylists.org
href="mailto:stoves@lists.bioenergylists.org">'Discussion of biomass cooking
stoves'</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, July 28, 2013 5:14 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [Stoves] Pot shells / Fin
shells</DIV>
<DIV><BR></DIV>
<DIV class=WordSection1>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US">Dear
Lanny<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US">The
problem is the missing figure is the mass of fuel when the pot as boiled so I
can’t get an efficiency without making some (big)
guesses.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US">If
the energy needed to simmer the rice for 30 minutes is 20% of the boiling
energy, the system efficiency (which is the analogy of fuel efficiency) is
34%, conditioned on the following:<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US">If
the charcoal remaining is useable in the next fire, it can be treated as
‘unused fuel’. If you want an accurate figure, you would have to use this duel
in a new fire and get the performance so that the amount of char remaining is
the same as what you put in during that burn. <o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US">The
34% figure assumes the char is not burnable in the next
fire.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US">If
it is (all of it) the system efficiency is 51% based on the simmering
assumption.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US">It
should be remembered that the thermal efficiency should consider the thermal
mass of the pot (mass x specific x change in temperature. If it does, the
reported figure will be higher.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US">Regards<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US">Crispin<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt; mso-fareast-language: EN-US"><o:p> </o:p></SPAN></P>
<DIV>
<DIV
style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0mm; PADDING-LEFT: 0mm; PADDING-RIGHT: 0mm; BORDER-TOP: #e1e1e1 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<P class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; FONT-SIZE: 11pt"
lang=EN-US>From:</SPAN></B><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; FONT-SIZE: 11pt" lang=EN-US>
Stoves [mailto:stoves-bounces@lists.bioenergylists.org] <B>On Behalf Of
</B>Lanny Henson<BR><B>Sent:</B> Sunday, July 28, 2013 3:37 PM<BR><B>To:</B>
Discussion of biomass cooking stoves<BR><B>Subject:</B> Re: [Stoves] Pot
shells / Fin shells<o:p></o:p></SPAN></P></DIV></DIV>
<P class=MsoNormal><o:p> </o:p></P>
<DIV>
<P><SPAN lang=EN>Well I had 186 LB of water and rice, the rice was 50 lb.
<o:p></o:p></SPAN></P>
<P><SPAN lang=EN>Rice has a specific heat capacity of about .33 which is about
the same as 16.5 of water so deduct 33.5 from 186 for a mass of about 152.5 lb
water equivalent.<o:p></o:p></SPAN></P>
<P><SPAN lang=EN>I started with 15 LB. of wood and had 2.95 LB. left over =
12.05 LB. of wood used, and there was 1.5 LB. of charcoal
left.<o:p></o:p></SPAN></P>
<P><SPAN lang=EN>The simmer time was about 30 min.<o:p></o:p></SPAN></P>
<P><SPAN lang=EN>The wrapper is 60” x and the vat is 48” long . I estimate the
water was contacting about 36” of the 60” wrapper so the contact area was
about 12 sq. ft.<o:p></o:p></SPAN></P>
<P><SPAN lang=EN>Does that give you the numbers you
need?<o:p></o:p></SPAN></P>
<P><SPAN lang=EN>Lanny</SPAN><o:p></o:p></P></DIV></DIV>
<P>
<HR>
<P></P>_______________________________________________<BR>Stoves mailing
list<BR><BR>to Send a Message to the list, use the email
address<BR>stoves@lists.bioenergylists.org<BR><BR>to UNSUBSCRIBE or Change
your List Settings use the web
page<BR>http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org<BR><BR>for
more Biomass Cooking Stoves, News and Information see our web
site:<BR>http://stoves.bioenergylists.org/<BR><BR></BLOCKQUOTE></BODY></HTML>