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</o:shapelayout></xml><![endif]--></head><body lang=EN-CA link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D;mso-fareast-language:EN-US'>Thanks Tom. <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D;mso-fareast-language:EN-US'>></span><span lang=EN-US style='color:#1F497D'>Good proposal.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>>A char making appliance is a gas making appliance that makes char as a byproduct. By this definition it converts 85%, or less, of the solid fuel to gas. The remainder is char and ash (15%). <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>I want ot quibble slightly with the 15%. I am saying 15% of the original carbon so if it is in the form of char, I am not thinking it is 15% of the original whole dry fuel mass. This takes care of any implicit assumption that biomass has any particular carbon % or ash %.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>>…Since most biomass is 50% carbon that’s 45-48% of the mass. 15% carbon would be about 7.5% of the biomass. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Exactly. But for rice hull or switchgrass or palm fronds or coconut husks it is quite to be quite different. If the main purpose of make the char is either as a fuel or biochar, it is the carbon that can be used as a guide. I don’t want to make a stove test a slave to a current interpretation of what constitutes ‘biochar’. The biochar community is still in its Wild West phase.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Regards<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Crispin<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p></div></body></html>