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</o:shapelayout></xml><![endif]--></head><body lang=EN-ZA link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Cooling is directly related to the wet bulb temperature of the environment. In Johannesburg South Africa (5000 ft amsl) the design wet bulb temperature is 21oC for day time. The trick is to keep the pot itself in the shade and somewhere where there is at least a small breeze so that fresh air can replace the air around the pot. The air around the pot clearly gains water vapour and its micro climate wet bulb temperature will rise…<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'>Rex<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"'> Jason [mailto:urepedese@gmail.com] <br><b>Sent:</b> 25 December 2013 11:00 AM<br><b>To:</b> Discussion of biomass pyrolysis and gasification<br><b>Subject:</b> Re: [Gasification] [biochar] Pine char gasification<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal style='margin-bottom:12.0pt'>Regarding evapourative coolers, 8°C is about the maximum available in a dry climate. About 2°C in my local temperate climate and very little if any in a hot humid one I would think. This I learnt from someone in a position to know :-)<o:p></o:p></p></div><p class=MsoNormal>Regards<br><br>Jason<o:p></o:p></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p><div><p class=MsoNormal>On Wed, Dec 25, 2013 at 5:00 PM, Jeff Davis <<a href="mailto:jeffdavis0124@gmail.com" target="_blank">jeffdavis0124@gmail.com</a>> wrote:<o:p></o:p></p><div><div><p class=MsoNormal>I'm sure this is not the case but a refrigerator can be made from two clay pots, one smaller than the other, charcoal and a cloth top. The smaller pot fits inside the larger one with charcoal (or sand) betwixt them. Add water to the charcoal and cloth plus evaporation. I also doubt that it would work in the steamy jungles. Just thought I'd toss that out there.<br><br><a href="http://www.youtube.com/watch?v=ZNKifJHqScc" target="_blank">http://www.youtube.com/watch?v=ZNKifJHqScc</a><br><br><br><br>Marry Christmas,<br>Jeff<o:p></o:p></p><div><p class=MsoNormal><br><br><br><br>On 12/24/2013 02:52 PM, Ronal W. Larson wrote:<o:p></o:p></p></div></div><div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><p class=MsoNormal><b> I hope someone on this list has looked at efforts to mimic the Terra Preta soils. It seems clear they did much more than just put out ash - which seems to have been what the vast majority of aboriginal slash and burn cultures did. I favor an argument that the char came from what happened during and after cooking (If wood is easy to come by, you can make a lot of char in a 3-stone arrangement. I have seen one argument for an approach like HTC.</b><o:p></o:p></p></blockquote><p class=MsoNormal><o:p> </o:p></p></div></div><p class=MsoNormal style='margin-bottom:12.0pt'><br>_______________________________________________<br>Gasification mailing list<br><br>to Send a Message to the list, use the email address<br><a href="mailto:Gasification@bioenergylists.org">Gasification@bioenergylists.org</a><br><br>to UNSUBSCRIBE or Change your List Settings use the web page<br><a href="http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org" target="_blank">http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org</a><br><br>for more Gasifiers, News and Information see our web site:<br><a href="http://gasifiers.bioenergylists.org/" target="_blank">http://gasifiers.bioenergylists.org/</a><o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p></div></div>
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