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</o:shapelayout></xml><![endif]--></head><body lang=EN-CA link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Dear Friends<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 style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Paul Montgomery can be assumed to be a student of Steve Garrett and Matt Poese of the GACC Roadmap fame. He is the leading authority on thermoacoustic refrigeration (which is what that device in his had is).<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 style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Ultimately it is a form of Stirling Engine. There is some work on generating power from stoves going on in the UK (incl Univ of London and others) but they have not made much progress on a practical device. <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 style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Steve and his former student (now head at the Los Alamos T/A Lab) Dr Backhaus showed that for power under 20 watts this approach is probably the best and cheapest. TEG’s are fragile (as Biolite has found several times) so there is real progress for us from Montgomery. You can see that he is working in a possible Delta T of 800 degrees. Now that is really useful!<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 style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Regards<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Crispin<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 style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US 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>CEDESOL Foundation<br><b>Sent:</b> Monday, February 20, 2012 12:25 PM<br><b>To:</b> Discussion of biomass cooking stoves<br><b>Subject:</b> Re: [Stoves] Biolite gets a mention on Engadget<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'>and another but of a different process using sound waves <a href="https://www.engineeringforchange.org/news/2011/03/15/how_a_loudspeaker_in_a_cookstove_can_power_appliances_and_cut_pollution.html">https://www.engineeringforchange.org/news/2011/03/15/how_a_loudspeaker_in_a_cookstove_can_power_appliances_and_cut_pollution.html</a><o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>On Mon, Feb 20, 2012 at 1:20 PM, CEDESOL Foundation <<a href="mailto:lists.cedesol@gmail.com">lists.cedesol@gmail.com</a>> wrote:<o:p></o:p></p></div></div></body></html>