Hi All,<div><br></div><div>I find that pellets burn cleaner in TLUDs when at about 10% to 15% moisture content like sticks of wood. In both cases a slower burn helps to meter the fuel.</div><div><br></div><div>Best,</div><div>
<br></div><div>Dean<br><br><div class="gmail_quote">On Wed, Jun 12, 2013 at 12:22 PM, <span dir="ltr"><<a href="mailto:rongretlarson@comcast.net" target="_blank">rongretlarson@comcast.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><div style="font-size:12pt;font-family:Arial">Crispin, list etal<br><br> This below may be true for "burning", but it has not been my experience for pyrolysis. Colorado is pretty dry and I never experienced a smoke problem due to dryness. I hope someone with a TLUD will "bake" some wood or pellets for awhile and report their results. If a fuel dryness problem exists for TLUDs, it is not clear why that should be so. During pyrolysis a lot of water is created through numerous chemical reactions.<br>
<br> Yes problems for wet wood with TLUDs. Explicit detail is somewhere in this list's archives. Andrew H is expert on fuel wetness.<br><br>Ron<br><br><hr><b>From: </b>"Crispin Pemberton-Pigott" <<a href="mailto:crispinpigott@gmail.com" target="_blank">crispinpigott@gmail.com</a>><br>
<b>To: </b>"Discussion of biomass cooking stoves" <<a href="mailto:stoves@lists.bioenergylists.org" target="_blank">stoves@lists.bioenergylists.org</a>><br><b>Sent: </b>Wednesday, June 12, 2013 1:11:31 PM<br>
<b>Subject: </b>Re: [Stoves] Burning wet wood<br><br><div><p class="MsoNormal"><span style="color:#1f497d">Dear Frank</span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">Burning very dry wood is difficult and it makes a lot of smoke. That is why stoves should not be evaluated with very dry wood when they are designed to burn ‘ordinary wood’.</span></p>
<p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">If you get the conditions right for the early fire they are double-guaranteed o be wrong for the late fire. Much better a continuous input of damp material.</span></p>
<p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">Regards</span></p><p class="MsoNormal"><span style="color:#1f497d">Crispin</span></p><div><div style="border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0mm 0mm 0mm">
<p class="MsoNormal"><span style="color:#1f497d">++++++</span></p><p class="MsoNormal"><span lang="EN-US"> </span></p></div></div><p class="MsoNormal"> </p><p class="MsoNormal"><b><span style="font-size:14.0pt;color:#7030a0" lang="EN-US">Dear Crispin, Tom and all,</span></b></p>
<p class="MsoNormal"><b><span style="font-size:14.0pt;color:#7030a0" lang="EN-US"> </span></b></p><p class="MsoNormal"><b><span style="font-size:14.0pt;color:#7030a0" lang="EN-US">I would think a batch mode would be better. A continuous mode means you have water vapor all the time. In batch mode one would heat and find the gas temperature goes to 100c. Then when the water is finally burned off the temperature rises and you can then push the fuel forward to do what you want to do with the now dry wood. Not sure this happens and have not seen a graph of this but think this is what would happen. </span></b></p>
<p class="MsoNormal"><b><span style="font-size:14.0pt;color:#7030a0" lang="EN-US"> </span></b></p><p class="MsoNormal"><b><span style="font-size:14.0pt;color:#7030a0" lang="EN-US">Frank</span></b></p></div><br>_______________________________________________<br>
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