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<P style="MARGIN: 0in 0in 0pt" class=MsoNoSpacing><B
style="mso-bidi-font-weight: normal"><SPAN
style="FONT-SIZE: 18pt; mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: Arial; mso-bidi-theme-font: minor-latin"><FONT
face=Arial><FONT size=4>If the pot holders are too high, all the heat may flow
to one side of the pot, especially if there is wind or air turbulence in the
cook space<?xml:namespace prefix = o ns =
"urn:schemas-microsoft-com:office:office"
/><o:p></o:p></FONT></FONT></SPAN></B></P>
<P style="MARGIN: 0in 0in 0pt" class=MsoNoSpacing><B
style="mso-bidi-font-weight: normal"><SPAN
style="FONT-SIZE: 18pt; mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: Arial; mso-bidi-theme-font: minor-latin"><FONT
face=Arial><FONT size=4>A smaller gap spreads the flow out across the bottom of
the pot. The increased velocity also
helps.<o:p></o:p></FONT></FONT></SPAN></B></P>
<P style="MARGIN: 0in 0in 0pt" class=MsoNoSpacing><B
style="mso-bidi-font-weight: normal"><SPAN
style="FONT-SIZE: 18pt; mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: Arial; mso-bidi-theme-font: minor-latin"><FONT
face=Arial><FONT size=4>The problem is that with a multiple pot stove you have a
cook top, and you don’t want the heat flow to touch the cook top.
</FONT></FONT></SPAN></B></P>
<P style="MARGIN: 0in 0in 0pt" class=MsoNoSpacing><B
style="mso-bidi-font-weight: normal"><SPAN
style="FONT-SIZE: 18pt; mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: Arial; mso-bidi-theme-font: minor-latin"><FONT
face=Arial><FONT size=4>With a short potholders the heat scrapes the stove top.
</FONT></FONT></SPAN></B></P>
<P style="MARGIN: 0in 0in 0pt" class=MsoNoSpacing><B
style="mso-bidi-font-weight: normal"><SPAN
style="FONT-SIZE: 18pt; mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: Arial; mso-bidi-theme-font: minor-latin"><FONT
face=Arial><FONT size=4>You are trying to cook the pot not the stove. I learned
this using a rectangular cook top which wants to warp when
heated.<o:p></o:p></FONT></FONT></SPAN></B></P>
<P style="MARGIN: 0in 0in 0pt" class=MsoNoSpacing><B
style="mso-bidi-font-weight: normal"><SPAN
style="FONT-SIZE: 18pt; mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: Arial; mso-bidi-theme-font: minor-latin"><FONT
face=Arial><FONT size=4>With the School Lunch Cooker I let the burner extend
1”/25mm above the cook top and used 2”/50mm tall pot holders. This puts the heat
on the pot and shields the stove top with a layer of dead
air.<o:p></o:p></FONT></FONT></SPAN></B></P></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=sarbagya007@gmail.com href="mailto:sarbagya007@gmail.com">Sarbagya R.
Tuladhar</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> Friday, September 20, 2013 4:16
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [Stoves] A doctoral thesis
on stoves</DIV>
<DIV><BR></DIV>12-15 m high ???
<DIV><BR></DIV>
<DIV>Cheers</DIV>
<DIV><BR></DIV>
<DIV>Sarbagya</DIV>
<DIV><BR>
<DIV>
<DIV>On 20/09/2013, at 4:35 AM, Crispin Pemberton-Pigott wrote:</DIV><BR
class=Apple-interchange-newline>
<BLOCKQUOTE type="cite"><SPAN
style="WIDOWS: 2; TEXT-TRANSFORM: none; TEXT-INDENT: 0px; BORDER-COLLAPSE: separate; FONT: medium Helvetica; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; WORD-SPACING: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"
class=Apple-style-span>
<DIV lang=EN-CA vlink="purple" link="blue">
<DIV style="page: WordSection1" class=WordSection1>
<DIV
style="MARGIN: 0mm 0mm 0pt; FONT-FAMILY: 'Times New Roman', serif; FONT-SIZE: 12pt"><SPAN
style="COLOR: rgb(31,73,125)">Very good paper with some novel adaptions of
the test methods, approaches to the community and the retrofitted
device.<O:P></O:P></SPAN></DIV>
<DIV
style="MARGIN: 0mm 0mm 0pt; FONT-FAMILY: 'Times New Roman', serif; FONT-SIZE: 12pt"><SPAN
style="COLOR: rgb(31,73,125)"><O:P></O:P></SPAN></DIV>
<DIV
style="MARGIN: 0mm 0mm 0pt; FONT-FAMILY: 'Times New Roman', serif; FONT-SIZE: 12pt"><SPAN
style="COLOR: rgb(31,73,125)">The money photo is this
one:<O:P></O:P></SPAN></DIV>
<DIV
style="MARGIN: 0mm 0mm 0pt; FONT-FAMILY: 'Times New Roman', serif; FONT-SIZE: 12pt"><SPAN
style="COLOR: rgb(31,73,125)"><O:P></O:P></SPAN></DIV>
<DIV
style="MARGIN: 0mm 0mm 0pt; FONT-FAMILY: 'Times New Roman', serif; FONT-SIZE: 12pt"><SPAN><image003.jpg></SPAN><SPAN
style="COLOR: rgb(31,73,125)"><O:P></O:P></SPAN></DIV>
<DIV
style="MARGIN: 0mm 0mm 0pt; FONT-FAMILY: 'Times New Roman', serif; FONT-SIZE: 12pt"><SPAN
style="COLOR: rgb(31,73,125)"><O:P></O:P></SPAN></DIV>
<DIV
style="MARGIN: 0mm 0mm 0pt; FONT-FAMILY: 'Times New Roman', serif; FONT-SIZE: 12pt"><SPAN
style="COLOR: rgb(31,73,125)">The pot rests are far too tall and create
several simultaneous problems for effective heat transfer. The addition
of<SPAN class=Apple-converted-space> </SPAN><A
style="COLOR: blue; TEXT-DECORATION: underline"
href="http://en.wikipedia.org/wiki/Turbulator">turbulators</A><SPAN
class=Apple-converted-space> </SPAN>is one way to address some of this
error.<O:P></O:P></SPAN></DIV>
<DIV
style="MARGIN: 0mm 0mm 0pt; FONT-FAMILY: 'Times New Roman', serif; FONT-SIZE: 12pt"><SPAN
style="COLOR: rgb(31,73,125)"><O:P></O:P></SPAN></DIV>
<DIV
style="MARGIN: 0mm 0mm 0pt; FONT-FAMILY: 'Times New Roman', serif; FONT-SIZE: 12pt"><SPAN
style="COLOR: rgb(31,73,125)">Given the reported power level the pot rests
should be about 12-15m high and that would reduce the initial problem. It
would be interesting to see a stove built with both
changes.<O:P></O:P></SPAN></DIV>
<DIV
style="MARGIN: 0mm 0mm 0pt; FONT-FAMILY: 'Times New Roman', serif; FONT-SIZE: 12pt"><SPAN
style="COLOR: rgb(31,73,125)"><O:P></O:P></SPAN></DIV>
<DIV
style="MARGIN: 0mm 0mm 0pt; FONT-FAMILY: 'Times New Roman', serif; FONT-SIZE: 12pt"><SPAN
style="COLOR: rgb(31,73,125)">Regards<O:P></O:P></SPAN></DIV>
<DIV
style="MARGIN: 0mm 0mm 0pt; FONT-FAMILY: 'Times New Roman', serif; FONT-SIZE: 12pt"><SPAN
style="COLOR: rgb(31,73,125)">Crispin<O:P></O:P></SPAN></DIV>
<DIV
style="MARGIN: 0mm 0mm 0pt; FONT-FAMILY: 'Times New Roman', serif; FONT-SIZE: 12pt"><SPAN
style="COLOR: rgb(31,73,125)"><O:P></O:P></SPAN></DIV>
<DIV
style="MARGIN: 0mm 0mm 0pt; FONT-FAMILY: 'Times New Roman', serif; FONT-SIZE: 12pt"><SPAN
style="COLOR: rgb(31,73,125)"><O:P></O:P></SPAN></DIV>
<DIV
style="MARGIN: 0mm 0mm 0pt; FONT-FAMILY: 'Times New Roman', serif; FONT-SIZE: 12pt"><SPAN
style="COLOR: rgb(31,73,125)">+++++++++++<O:P></O:P></SPAN></DIV>
<DIV
style="MARGIN: 0mm 0mm 0pt; FONT-FAMILY: 'Times New Roman', serif; FONT-SIZE: 12pt">List:<O:P></O:P></DIV>
<DIV>
<DIV
style="MARGIN: 0mm 0mm 0pt; FONT-FAMILY: 'Times New Roman', serif; FONT-SIZE: 12pt"><O:P></O:P></DIV></DIV>
<DIV>
<DIV
style="MARGIN: 0mm 0mm 0pt; FONT-FAMILY: 'Times New Roman', serif; FONT-SIZE: 12pt">
1, I recommend this recent new (free) technical stove
paper:<O:P></O:P></DIV></DIV>
<DIV>
<DIV
style="MARGIN: 0mm 0mm 0pt; FONT-FAMILY: 'Times New Roman', serif; FONT-SIZE: 12pt"><O:P></O:P></DIV></DIV>
<DIV>
<DIV
style="MARGIN: 0mm 0mm 0pt; FONT-FAMILY: 'Times New Roman', serif; FONT-SIZE: 12pt">
<A style="COLOR: blue; TEXT-DECORATION: underline"
href="http://www.energsustainsoc.com/content/pdf/2192-0567-3-16.pdf">http://www.energsustainsoc.com/content/pdf/2192-0567-3-16.pdf</A><O:P></O:P></DIV></DIV></DIV>_______________________________________________<BR>Stoves
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