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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Dear Crispin,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Do I have it right that LHV = HHV – (LHV is the latent heat of evaporation from the hydrogen in the biomass)? and the effective heating value is from the moisture in the wood) ? <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Thanks<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Frank<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> stoves-bounces@lists.bioenergylists.org [mailto:stoves-bounces@lists.bioenergylists.org] <b>On Behalf Of </b>Crispin Pemberton-Pigott<br><b>Sent:</b> Monday, June 25, 2012 1:00 PM<br><b>To:</b> Stoves<br><b>Subject:</b> [Stoves] Calculating HHV<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-CA>Dear Friends<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-CA>The publication <a href="http://www.dse.vic.gov.au/__data/assets/word_doc/0015/122208/Firewood_Use_in_Victoria.doc">http://www.dse.vic.gov.au/__data/assets/word_doc/0015/122208/Firewood_Use_in_Victoria.doc</a> <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA>has formula given for the calculation of Higher Heating Value (dry basis) of firewood, citing Stucley et al (2004).<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA><o:p> </o:p></span></p><p class=MsoNormal style='text-align:justify;line-height:150%'><i><span lang=EN-CA>HHV <sub>d.b.</sub> = 0.3491*<b>C</b> + 1.1783*<b>H</b> + 0.1005*<b>S</b> - 0.0151*<b>N</b> - 0.1034*<b>O</b> - 0.0211*<b>ash</b> MJ/kg <sub>d.b.</sub><o:p></o:p></span></i></p><p class=MsoNormal style='text-align:justify;line-height:150%'><span lang=EN-CA>Where the firewood content of each of the elements listed is entered:<o:p></o:p></span></p><p class=MsoNormal style='text-align:justify;text-indent:.5in'><b><span lang=EN-CA style='font-size:8.0pt'>C</span></b><span lang=EN-CA style='font-size:8.0pt'> = Carbon<o:p></o:p></span></p><p class=MsoNormal style='text-align:justify;text-indent:.5in'><b><span lang=EN-CA style='font-size:8.0pt'>H</span></b><span lang=EN-CA style='font-size:8.0pt'> = Hydrogen<o:p></o:p></span></p><p class=MsoNormal style='text-align:justify;text-indent:.5in'><b><span lang=EN-CA style='font-size:8.0pt'>S</span></b><span lang=EN-CA style='font-size:8.0pt'> = Sulphur<o:p></o:p></span></p><p class=MsoNormal style='text-align:justify;text-indent:.5in'><b><span lang=DE style='font-size:8.0pt'>N</span></b><span lang=DE style='font-size:8.0pt'> = Nitrogen<o:p></o:p></span></p><p class=MsoNormal style='text-align:justify;text-indent:.5in'><b><span lang=EN-CA style='font-size:8.0pt'>O</span></b><span lang=EN-CA style='font-size:8.0pt'> = Oxygen</span><span lang=EN-AU style='font-size:8.0pt'><o:p></o:p></span></p><p class=MsoNormal style='text-align:justify;text-indent:.5in'><b><span lang=EN-CA style='font-size:8.0pt'>Ash</span></b><span lang=EN-CA style='font-size:8.0pt'> = ash<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA><o:p> </o:p></span></p><p class=MsoNormal style='text-align:justify'><span lang=EN-CA style='font-size:8.0pt'>Stucley, C.R., Schuck, S.M., Sims, R.E.H, Larsen, P.L., Turvey, N.D. and Marino, B.E. (2004) <b><i>Biomass energy production in Australia: Status, costs and opportunities for major technologies.</i></b> RIRDC/FWPRDC L & W Australia / MDBC Joint Venture Agroforestry Program. Publication No. 04/031.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-CA>If that looks familiar you have been paying close attention. The LHV is calculated as usual based on the moisture content subtracting the latent heat of evaporation.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA><o:p> </o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:5.0pt;margin-right:0in;margin-bottom:5.0pt;margin-left:0in;text-align:justify;line-height:150%'><span lang=EN-CA>The project brief was (in part) a complete a high-level economic analysis of Victoria’s firewood market that delivers an estimation of:<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:5.0pt;margin-right:0in;margin-bottom:5.0pt;margin-left:.75in;text-align:justify;text-indent:-.25in;line-height:150%;mso-list:l0 level1 lfo2'><![if !supportLists]><span lang=EN-CA style='font-family:Wingdings'><span style='mso-list:Ignore'>Ø<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-CA>Firewood consumption patterns, including volume, species preferences, the source of firewood and end uses, with a particular focus on Melbourne and other major regional centres; <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:5.0pt;margin-right:0in;margin-bottom:5.0pt;margin-left:.75in;text-align:justify;text-indent:-.25in;line-height:150%;mso-list:l0 level1 lfo2'><![if !supportLists]><span lang=EN-CA style='font-family:Wingdings'><span style='mso-list:Ignore'>Ø<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-CA>Firewood supply patterns, including volume, species, region of origin, tenure of origin, pricing and resource security; and<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:5.0pt;margin-right:0in;margin-bottom:5.0pt;margin-left:.75in;text-align:justify;text-indent:-.25in;line-height:150%;mso-list:l0 level1 lfo2'><![if !supportLists]><span lang=EN-CA style='font-family:Wingdings'><span style='mso-list:Ignore'>Ø<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-CA>The extent to which firewood supplied from public land, administered through DSE, influences Victoria’s firewood market. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-CA>Regards<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA>Crispin<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA><o:p> </o:p></span></p></div></body></html>