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<DIV><FONT face=Arial>Dear Frank</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>What about 2 steel pie plates? Put char in one and cover
with the other.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>If char was very hot, to enhance cooling
rate, set the bottom plate on a paper towel soaked in water, and spray the
top plate with a water mist. </FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Best wishes,</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Kevin</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=frank@compostlab.com href="mailto:frank@compostlab.com">Frank
Shields</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> Tuesday, December 04, 2012 5:14
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [Stoves] Equipment required
for testing stoves</DIV>
<DIV><BR></DIV>
<DIV class=WordSection1>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Paul,<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">I
like the vase. And having a pot of water on top collecting ‘energy’ as the
WACW cools seems like a great method of measuring energy loss during the
cooling that can be added on to the values determined from a ground and tested
WACW. Wonder if that would work - Crispin? <o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Frank<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt">From:</SPAN></B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt"> Stoves
[mailto:stoves-bounces@lists.bioenergylists.org] <B>On Behalf Of </B>Paul
Olivier<BR><B>Sent:</B> Tuesday, December 04, 2012 12:41 PM<BR><B>To:</B>
Discussion of biomass cooking stoves<BR><B>Subject:</B> Re: [Stoves] Equipment
required for testing stoves<o:p></o:p></SPAN></P>
<P class=MsoNormal><o:p> </o:p></P>
<P style="MARGIN-BOTTOM: 12pt" class=MsoNormal>Frank,<BR><BR>Getting an
accurate dry weight of biochar is indispensable in being able to sell
it.<BR>If we douse the biochar with water, then we no longer have an accurate
measurement of dry weight.<BR>Also biochar right out of the gasifier contains
valuable heat that could be used in keeping food warm.<BR><BR>Therefore I
designed a terracotta vase to contain the hot biochar.<BR>A pot placed on top
of the vase prevents oxygen from entering.<BR>The vase shown in the drawing
below can hold six liters of biochar.<BR>This is the volume of rice hull
biochar produced in my 150 gasifier.<BR><A
href="https://dl.dropbox.com/u/22013094/150%20Gasifier/Terrecotta%20Vase/Drawing/Terracotta%20Vase.pdf">https://dl.dropbox.com/u/22013094/150%20Gasifier/Terrecotta%20Vase/Drawing/Terracotta%20Vase.pdf</A><BR><BR>Thanks.<BR>Paul
Olivier<BR><BR><BR><BR><o:p></o:p></P>
<DIV>
<P class=MsoNormal>On Wed, Dec 5, 2012 at 3:20 AM, Frank Shields <<A
href="mailto:frank@compostlab.com" target=_blank>frank@compostlab.com</A>>
wrote:<o:p></o:p></P>
<P style="MARGIN-BOTTOM: 12pt" class=MsoNormal>Hi Crispin,<BR><BR>Weighing the
fuel when removed (hot and burning) and dry weight after<BR>soaking with
water, draining (screen) and drying is not a convenient<BR>procedure to
determine moisture left -and prone to error - but only method I<BR>can think
of at the moment.<BR>Water puts out a fire by taking away its heat. So
wondering if there is<BR>another method that could be used? Combination
nitrogen gas and pieces of<BR>steel in a tumbler? Must be some way besides
water.<BR><BR>Frank<BR><BR><BR>Frank Shields<BR>Control Laboratories,
Inc.<BR>42 Hangar Way<BR>Watsonville, CA 95076<BR>(831) 724-5422
tel<BR>(831) 724-3188 fax<BR><A href="http://www.biocharlab.com"
target=_blank>www.biocharlab.com</A><BR><BR><BR><BR><BR><BR><BR><BR><BR>-----Original
Message-----<BR>From: Stoves [mailto:<A
href="mailto:stoves-bounces@lists.bioenergylists.org">stoves-bounces@lists.bioenergylists.org</A>]
On Behalf Of<BR>Crispin Pemberton-Pigott<BR>Sent: Tuesday, December 04, 2012
11:26 AM<BR>To: Stoves<BR>Subject: Re: [Stoves] Equipment required for testing
stoves<BR><BR>Dear Frank<BR><BR>You are on the right track, in my view. The
assumed energy for the wood and<BR>char is a major source of imprecision in
the test.<BR><BR>As for quenching with water: unfortunately we need to know
the residual<BR>moisture content of the fuel 'as removed'. That varies a lot
depending on<BR>the stove type. Quenching it with nitrogen is an
alternative.<BR><BR>Regards<BR>Crispin<BR>-----Original Message-----<BR>From:
"Frank Shields" <<A
href="mailto:frank@compostlab.com">frank@compostlab.com</A>><BR>Sender:
"Stoves" <<A
href="mailto:stoves-bounces@lists.bioenergylists.org">stoves-bounces@lists.bioenergylists.org</A>><BR>Date:
Tue, 4 Dec 2012 10:19:39<BR>To: 'Discussion of biomass cooking stoves'<<A
href="mailto:stoves@lists.bioenergylists.org">stoves@lists.bioenergylists.org</A>><BR>Reply-To:
Discussion of biomass cooking stoves<BR> <<A
href="mailto:stoves@lists.bioenergylists.org">stoves@lists.bioenergylists.org</A>><BR>Subject:
[Stoves] Equipment required for testing
stoves<BR><BR>_______________________________________________<BR>Stoves
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<P class=MsoNormal><BR><BR clear=all><BR>-- <BR>Paul A. Olivier PhD<BR>27/2
Phu Dong Tieng Vuong<BR>Dalat<BR>Vietnam<BR><BR>Louisiana telephone:
1-337-447-4124 (rings Vietnam)<BR>Mobile: 090-694-1573 (in Vietnam)<BR>Skype
address: Xpolivier<BR><A href="http://www.esrla.com/"
target=_blank>http://www.esrla.com/</A><o:p></o:p></P></DIV>
<P>
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