<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p
{mso-style-priority:99;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
/* List Definitions */
@list l0
{mso-list-id:473304114;
mso-list-template-ids:505958952;}
ol
{margin-bottom:0in;}
ul
{margin-bottom:0in;}
--></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 bgcolor=white lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Lanny,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>This is a great question and a test method that need be developed for the fuel classification BOX.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Could be something like placing a fuel of specific size in a vertical pipe sitting on a screen. How many Whatman cellulose filters are needed at the bottom to achieve and maintain combustion. Something like that. Moisture is not the only characteristic that effects combustion. Bark covered, verticle, shape etc. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Regards<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Frank<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Stoves [mailto:stoves-bounces@lists.bioenergylists.org] <b>On Behalf Of </b>Lanny Henson<br><b>Sent:</b> Saturday, April 27, 2013 5:42 AM<br><b>To:</b> Discussion of biomass cooking stoves<br><b>Subject:</b> [Stoves] wood: air dry, damp, moist and too wet to burn<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p><span lang=EN> <o:p></o:p></span></p><p><span lang=EN style='font-size:13.5pt'>Has anyone broken down the moisture level of red oak wood, or biomass, into categories similar to: <u>air dry</u>, <u>damp</u>, <u>moist</u> and too <u>wet</u> to burn? </span><span lang=EN><o:p></o:p></span></p><p><span lang=EN style='font-size:13.5pt'>(Damp and moist may not be the best names for the two middle categories.)</span><span lang=EN><o:p></o:p></span></p><p><span lang=EN style='font-size:13.5pt'>Also is there an energy balance chart? </span><span lang=EN><o:p></o:p></span></p><p><span lang=EN style='font-size:13.5pt'>Moisture levels for red oak wood: </span><span lang=EN><o:p></o:p></span></p><ol start=1 type=1><li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'><u><span lang=EN style='font-size:13.5pt'>Air Dry</span></u><span lang=EN style='font-size:13.5pt'>: (13% and below), will ignite and maintain flaming combustion, without fire starter.</span><span lang=EN><o:p></o:p></span></li><li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'><u><span lang=EN style='font-size:13.5pt'>Damp</span></u><span lang=EN style='font-size:13.5pt'>: (13% to ?%), needs some assistance to reach and maintain flaming combustion on is own, paper dry biomass, wax or other. </span><span lang=EN><o:p></o:p></span></li><li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'><u><span lang=EN style='font-size:13.5pt'>Moist</span></u><span lang=EN style='font-size:13.5pt'>: (?% to ?%), needs extra help to reach flaming combustion and needs help more than once to maintain flaming combustion. The fire may burn a while until the moisture displaces the combustion air and then the fire goes out. You may have to top light and use a fire starter more than once to dry the wood to a point that it will burn, but once the combustion zone is hot, the wood will maintain flaming combustion.</span><span lang=EN><o:p></o:p></span></li><li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'><u><span lang=EN style='font-size:13.5pt'>Wet</span></u><span lang=EN style='font-size:13.5pt'>: wood, (?% or more), too wet to burn, the energy in oak wood equal to or less than the energy necessary to evaporate its moisture content. Adds no energy to a fire.</span><span lang=EN><o:p></o:p></span></li></ol><div><p class=MsoNormal><span lang=EN> <o:p></o:p></span></p></div><p><span lang=EN style='font-size:13.5pt'>Thanks, Lanny</span><o:p></o:p></p></div></body></html>