<div>Thanks for responding Crispin,</div><div>I fished for suggestions on the biochar list, but haven't felt good enough to start anything on the big tank. The 10' dia.X 8' tank, when starting the brush fire in the bottom and adding, for 6 hrs. before capping, charred much better when in the ground than above. One reason was that when in the ground, all air was cut off, except for a 3" hole in the cap. The cover was too hot to touch for 4 weeks and still alive, when removed with the backhoe. That is too slow, when the heat is wasted, but would be interesting to track the heat, in the 30' tank in winter, if one started a brush fire at the base and added regularly for 12+ hrs., before capping. </div>
<div><br></div><div>The original dream was a gasifier, with the O starved gases piped into the boiler, with hot secondary air added, as it entered the boiler. That would've been expensive, would've involved the state boiler inspector and was before I had heard of biochar. </div>
<div><br></div><div>I'm sure Tom has read my rambles. Over 90% of tree waste in this area is torched, including at municipal compost sites, mostly because the cost of chipping, grinding or transporting is prohibitive. If anyone has any suggestions, no matter how wild or is into grant writing, I'm listening. Thanks, Dick</div>
<div><br></div>Dick Gallien <br>22501 East Burns Valley Road<br>Winona MN 55987<br><a href="mailto:dickgallien@gmail.com">dickgallien@gmail.com</a> [507]454-3126<br><a href="http://www.thefarm.winona-mn.us">www.thefarm.winona-mn.us</a><br>
<br>It is almost a miracle that modern teaching methods have not yet entirely strangled the holy curiosity of inquiry; for what this delicate little plant needs more than anything, besides stimulation, is freedom<br>Albert Einstein<br>
<br><br><div class="gmail_quote">On Tue, Dec 28, 2010 at 8:04 PM, Crispin Pemberton-Pigott <span dir="ltr"><<a href="mailto:crispinpigott@gmail.com">crispinpigott@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div lang="EN-CA" link="blue" vlink="purple"><div><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Dear Dick</span></p><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span></p><p class="MsoNormal">
<span style="font-size:11.0pt;color:#1F497D">That is a honking great charcoal producer you have there!</span></p><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal"><span><span style="font-size:13.5pt"><a href="http://www.thefarm.winona-mn.us/biochar.html" target="_blank">Biochar Production</a></span></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Given the insulation level and the temperatures, I agree that the steel is going to last a long time. It would also take little in the form of bricklaying skill to line it. Round is easy. Broken face bricks and fireclay cement laid thin would give you a long working life. One guy to ask is Tom Miles of this list. He seems to work on technologies at that sort of scale.</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">I am really interested to hear what yield you get and what happens to the gas. </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Thanks</span></p><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Crispin</span></p>
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