<div dir="ltr"><div style><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">Hi Crispin,</span></div><div style><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">In answer to your questions. I assumed that the cost of transportation, for bulk products like this will primarily be based on weight rather than volume. Therefore, in my analysis, the relative costs for transporting each of the different fuels is simply the </span><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">product of:</span></div>
<div style><span style="font-family:arial,sans-serif;font-size:12.727272033691406px"><br></span></div><div style><span style="font-family:arial,sans-serif;font-size:12.727272033691406px"> 1. the relative energy density (MJ/KG)</span></div>
<div style><span style="font-family:arial,sans-serif;font-size:12.727272033691406px"> multiplied by</span></div><div style><span style="font-family:arial,sans-serif;font-size:12.727272033691406px"> 2. the relative haul distance.(KM/MJ) to pick up a MJ of fuel. </span></div>
<div style><br></div><div style><span style="font-family:arial,sans-serif;font-size:12.727272033691406px"> Sized & dried biomass (whether pellets, crumbled wood, dried chips, sticks, etc) has only 59% of the energy density of charcoal. </span><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">On the other hand, the relative haul distance for traditional charcoal, because the process is so inefficient and it consequently has to be hauled from a much wider area, is 3 times more than for sized & dried biomass. </span></div>
<div style><span style="font-family:arial,sans-serif;font-size:12.727272033691406px"><br></span></div><div style><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">For the "alternative to charcoal" I assume that the market for this fuel being brought into the cities is developed on the basis of modern/new micro-gasifier / TLUD type stoves. It's assumed that the char is either burned in the TLUD (a few designs are coming out with this now) or the char is burned in a separate stove. I have assumed that this TLUD / Char Burning together has an overall efficiency of 40%. </span></div>
<div style><span style="font-family:arial,sans-serif;font-size:12.727272033691406px"><br></span></div><div style><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">- Paul </span></div><span style="font-family:arial,sans-serif;font-size:12.727272033691406px"><div>
<span style="font-family:arial,sans-serif;font-size:12.727272033691406px"><br></span></div>Date: Thu, 18 Apr 2013 11:22:53 +0000</span><br style="font-family:arial,sans-serif;font-size:12.727272033691406px"><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">From: </span><a href="mailto:crispinpigott@gmail.com" style="font-family:arial,sans-serif;font-size:12.727272033691406px">crispinpigott@gmail.com</a><br style="font-family:arial,sans-serif;font-size:12.727272033691406px">
<span style="font-family:arial,sans-serif;font-size:12.727272033691406px">To: "Stoves" <</span><a href="mailto:stoves@lists.bioenergylists.org" style="font-family:arial,sans-serif;font-size:12.727272033691406px">stoves@lists.bioenergylists.org</a><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">></span><br style="font-family:arial,sans-serif;font-size:12.727272033691406px">
<span style="font-family:arial,sans-serif;font-size:12.727272033691406px">Subject: Re: [Stoves] Alternatives to charcoal - transportation &</span><br style="font-family:arial,sans-serif;font-size:12.727272033691406px">
<span style="font-family:arial,sans-serif;font-size:12.727272033691406px"> biochar</span><br style="font-family:arial,sans-serif;font-size:12.727272033691406px"><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">Message-ID:</span><br style="font-family:arial,sans-serif;font-size:12.727272033691406px">
<span style="font-family:arial,sans-serif;font-size:12.727272033691406px"> <798760741-1366284175-cardhu_</span><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">decombobulator_blackberry.rim.</span><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">net-357301314-@b5.c10.bise6.</span><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">blackberry></span><br style="font-family:arial,sans-serif;font-size:12.727272033691406px">
<br style="font-family:arial,sans-serif;font-size:12.727272033691406px"><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">Content-Type: text/plain</span><br style="font-family:arial,sans-serif;font-size:12.727272033691406px">
<br style="font-family:arial,sans-serif;font-size:12.727272033691406px"><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">Dear Paul M</span><br style="font-family:arial,sans-serif;font-size:12.727272033691406px">
<br style="font-family:arial,sans-serif;font-size:12.727272033691406px"><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">Could you please clarify two things (I can't see the slides. I am in transit).</span><br style="font-family:arial,sans-serif;font-size:12.727272033691406px">
<br style="font-family:arial,sans-serif;font-size:12.727272033691406px"><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">Are you basing the transport on a volume basis on the assumption that a vehicle bearing a higher density fuel can carry more? Someone was talking like that.</span><br style="font-family:arial,sans-serif;font-size:12.727272033691406px">
<br style="font-family:arial,sans-serif;font-size:12.727272033691406px"><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">Next, I think you can (very) safely assume that any charcoal stove will deliver 1.5 times as much heat per available MJ into a pot. I aim higher than that but let's stick to average mediocre wood and charcoal stoves. A pretty ordinary charcoal stove will deliver 40% of the energy available to the pot.</span><br style="font-family:arial,sans-serif;font-size:12.727272033691406px">
<br style="font-family:arial,sans-serif;font-size:12.727272033691406px"><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">I don't know how that affects the outcome but it is the reality re the processed v.s. unprocessed fuels (char vs wood).</span><br style="font-family:arial,sans-serif;font-size:12.727272033691406px">
<br style="font-family:arial,sans-serif;font-size:12.727272033691406px"><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">Thanks</span><br style="font-family:arial,sans-serif;font-size:12.727272033691406px">
<span style="font-family:arial,sans-serif;font-size:12.727272033691406px">Crispin</span><br style="font-family:arial,sans-serif;font-size:12.727272033691406px"><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">Sent from my BlackBerry device on the Rogers Wireless Network</span><br clear="all">
<div><br></div>-- <br><div>Paul M. Means</div>Research & Testing Manager<div>Burn Design Lab </div><div>(253) 569-2976 (mobile)</div><div><a href="http://www.burndesignlab.org/" target="_blank">http://www.burndesignlab.org/</a></div>
<div><span style="font-family:Arial"><font size="1">“In the whole of world history there is always only one really significant hour – the present…If you want to find eternity, you must serve the times.”<i> - </i></font></span><font size="1"><span style="font-family:'Times New Roman';color:rgb(51,0,51)">Dietrich </span><span style="font-family:'Times New Roman';color:rgb(51,0,51)">Bonhoeffer</span></font><br>
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