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</o:shapelayout></xml><![endif]--></head><body lang=NL-BE link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Dears,<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 lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> A dual grate gives char-less ash ! Like white flower .<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>For strength use a 5mm perforated iron plate with 5mm square holes at 5mm distance .<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>On top of that a stainless 1,5 mm plate with oblique cuttings in windows shape4x8mm , Change this once a year.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Oblique fuel stock in a TLUD with airflow attenuating fuels as sawdust, pine needles ,twigs is THE solution for a clean and faster ”OBLIQUE SWEEPING FLAME” burn !!(B Pat P.F.)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>TEG ! Keep in mind it works on temperature DIFFERENCE not on temperature alone !<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Clay is an ISOLATER ! No good here . CONDUCT a hot place like the grate prolongation or Cu or Alu conductor bridge (through clay )to the hot side of TGV and a metal heat conductor bridge the cold side to the ground or water vessel or boiler container .<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Use an Amp meter to see” real” energy . Volt is not energy but potential to energy .<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Chose one power-full enough TGV to fullfill your GREATER DREAMS than may be realistic .<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Volt xAmpères=WATTS keep that in mind; The server must be stronger than the user …Or VOLT drops,Amps drops Watt drops.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>And RECLAME is always brighter than reality .<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> Your Wageninger naigh(El)-BOER<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>P.F.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US 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 0cm 0cm 0cm'><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><br><br><b>Onderwerp:</b> Re: [Stoves] Fuels of the future<o:p></o:p></span></p></div></div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US'>Dear Jed<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US'>The critical thing about the grate is that the fuel should feed down the grate by itself for the most part. At 10 degrees the grate needs to be shaken occasionally. That could be a ‘feature’ in some places, not in others. It depends on what you want. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US'>The figure of 20 degrees is not magic, it is just ‘more’. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US'>The grate gap will depend on the fuel. What you do not want is char in the ash if the intention was to burn it. What you describe is different of course.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US'>Good luck with the trip. May you help to ‘stay the hand of the oppressor’.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US'>Regards<br>Crispin<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-CA><o:p> </o:p></span></p><div><p class=MsoNormal><span lang=EN-CA>Dear Crispin<o:p></o:p></span></p><div><p class=MsoNormal><span lang=EN-CA><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=EN-CA>I use stainless steel rods 8mm with gaps of 8mm. This allows the pilinut shells to fall off after it has fully carbonized. Will adopt the idea of the tilted grate 20 degrees. <o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-CA><o:p> </o:p></span></p></div><div><div><p class=MsoNormal><span lang=EN-CA>Also Im struggling with TEGs. Its an amazing project and still cannot get it started. I suppose it would be very easy to simply embedd the TEGs into the clay wall and poke the wiring out to a fan or a charger. Could you please tell me more. about this..<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-CA><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=EN-CA>News on the side.... im contemplating about joining a humanitarian mission next week. <span style='color:red'>There are close to 3,000 refugees that fled from a conflict zone</span>. The place is Tandag in the province of Surigao del Sur. Their <span style='color:red'>tribal leaders and their teacher </span>wer<span style='color:red'>e executed by a paramilitary group who was organized by the Philippine Army</span>.. the evacuees are in a sports complex. My friends are going for a feeding mission. am raising some funds for my plane fare. also thinking about bringing my stove and have it tested there... .. to cook, to make bio char.. to use the biochar for sanitation.. to make compost,.... to teach people on approtech.... <o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-CA><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=EN-CA>Regards<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-CA><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=EN-CA>Jed <o:p></o:p></span></p></div></div></div><div><div><div><div><div><div><div><div><div><div><div><div><p class=MsoNormal><b><span lang=EN-CA style='font-family:"Garamond","serif"'>Joshua B. Guinto<br></span></b><span lang=EN-CA style='font-family:"Garamond","serif"'>Specialist, Appropriate Technology</span><span lang=EN-CA><o:p></o:p></span></p></div><p class=MsoNormal><span lang=EN-CA style='font-family:"Garamond","serif"'>MSc Management of AgroEcological Knowledge and Social Change (MAKS)</span><span lang=EN-CA><o:p></o:p></span></p></div><p class=MsoNormal><span lang=EN-CA style='font-family:"Garamond","serif"'>Wageningen University, The Netherlands</span><span lang=EN-CA> </span><span lang=EN-CA style='font-family:"Garamond","serif"'>2006 to 2008</span><span lang=EN-CA><o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-CA style='font-family:"Garamond","serif"'>Recipient, International Fellowships Programme Award (IFP) 2005</span><span lang=EN-CA><o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-CA style='font-family:"Garamond","serif"'>Ford Foundation </span><span lang=EN-CA><o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-CA><o:p> </o:p></span></p></div></div></div></div></div></div></div></div></div><div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt'><div><div><p class=MsoNormal style='background:white'><span lang=EN-GB style='font-family:"Calibri","sans-serif";color:#1F497D'>Dear Jeb<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span lang=EN-GB style='font-family:"Calibri","sans-serif";color:#1F497D'><br>With that layout and refuelling you will able to offer something that can be run indefinitely. Very good. <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span lang=EN-GB style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span lang=EN-GB style='font-family:"Calibri","sans-serif";color:#1F497D'>The way we handled the coke and ash was to tilt the grate downwards toward the fire. In the set of drawings on my website (Library/Stoves/GTZ7) the grate is not tilted enough. It should be about 20 degrees at least. The far end is upturned a little to catch the coke/char and not let it pile up against the far wall. <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span lang=EN-GB style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span lang=EN-GB style='font-family:"Calibri","sans-serif";color:#1F497D'>The TLUD fire is built on top of the grate perhaps 250 mm high. The final version has a 50 watt 12 volt TEG on the heat exchanger with two computer fans cooling it. The idea is it can run a TV and lights. <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span lang=EN-GB style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span lang=EN-GB style='font-family:"Calibri","sans-serif";color:#1F497D'>I found in experiments at YDD that the grate for wood should have quite small gaps - 4 to 5mm. It really reduces the char loss in the ash. For reasons which are not clear, round bars accomplish this better than flat upper surfaces. Still thinking about that. <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span lang=EN-GB style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span lang=EN-GB style='font-family:"Calibri","sans-serif";color:#1F497D'>Regards <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span lang=EN-GB style='font-family:"Calibri","sans-serif";color:#1F497D'>Crispin <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span lang=EN-GB style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p></div><div><div><p class=MsoNormal style='background:white'><span lang=EN-GB>Dear Crispin<o:p></o:p></span></p><div><p class=MsoNormal style='background:white'><span lang=EN-GB><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span lang=EN-GB>I just realized now reading from your remarks... that what im doing is a cross draft gasifier. Thanks for bringing that up. <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span lang=EN-GB><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span lang=EN-GB>The material from YDD will surely help. My crossdraft feeding of fuel on the side port comes in contact with the hot charcoal bed. The fresh fuel either comes on the side, or on the top of the hot char bed. But wood sticks can be poked under the hot char bed and they give better results. <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span lang=EN-GB><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span lang=EN-GB>Im writing a narrative of the details of the anatomy of the stove as Dr. Paul requested. Will post it as soon as i was able to get the size of the document down to less than 1.5 MB. <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span lang=EN-GB><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span lang=EN-GB>Regards<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span lang=EN-GB><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span lang=EN-GB>Jed <o:p></o:p></span></p></div></div></div></div></blockquote></div><p class=MsoNormal><span lang=EN-CA><o:p> </o:p></span></p></div></div></body></html>