Thanks Dean and Ron for the good reporting from this Stove Summer camp Dean please provide more details and cost of the IAP in a box system, which seems very interesting and affordable....
Regards Rogerio 2013/8/2 Dean Still <[email protected]> > > > > [image: ARC_Logo] > > *Aprovecho Summer Newsletter* > > August 1, 2013 > > *Summer Stove Camp comes to a close* > > [image: Sidwell_StoveCamp][image: Sidwell_StoveCamp]Sometimes Stove Camp > goes so well and summer 2013 was one of those occasions. Many folks camped > out and cooked delicious meals for everyone. Large projects, like a couple > of bread ovens, were made and used. Manufacturers spent long, long hours > testing and improving their products. Everyone worked hard and made huge > progress throughout the week, especially the two prize winners. > > There were two challenges for the week. One was sent to us by Jordan > Kowalke who is working for Total Land Care in Malawi. He is designing a > TLUD that will be used to burn wood chips for which he requested the > assistance of Stove Camp participants. Jordan sent a list of specifications > that the winning TLUD design must reach. This prize was awarded to Mick > Black and Jeffrey Santiago who tweaked Paul Anderson's Quad 3 stove until > it cleanly burned the wood chips and lasted long enough to make *posho*, > a typical meal in Malawi. > > [image: Dona_Dora]The other prize was for any stove that met the Tier > rating of 2-3-3-3-3 (Thermal Efficiency, High & Low power PM, and High and > Low power CO). Many stoves met this criteria so participants were allowed > to vote for their favorite. The prize was awarded to David Evitt with his > Guatemalan Doña Dora stove which he toiled to improve all week. > > During camp there was a ‘shotgun’ approach of many individual tests done > by many operators. For this we had three testing locations set-up. The two > Laboratory Emissions Monitoring Systems (LEMS) in the lab and a new > configuration we are calling “IAP-in-a-Box”, which is a test kitchen with a > basic hood and collection chamber that holds the Indoor Air Pollution Meter > (IAPM). This system was set up with the idea that testers can watch the > live output from the meter and gauge their design’s progress without having > to do a full test with the more complicated LEMS equipment. The > “IAP-in-a-Box” is being documented for those who wish to test total stove > emissions using the small, portable, IAP Meter. Please contact us if you > are interested in getting a system. > > [image: Dr_TLUD_Graph]Last summer people did many tests on charcoal > stoves and it was obvious looking at the results that although charcoal > stoves emitted a lot of CO they were almost all very low for PM. This year > we created a large graphic representation of all the tests on the wall and > added to it everyday. The conclusion was that TLUDs generally produce lower > amounts of PM than Rocket stoves but there seemed to be two classes of > TLUDS: really clean ones and only moderately clean ones. Both Rockets and > TLUDs were improved by paying greater attention to heat transfer. Even > though getting excellent heat transfer is well described and doesn’t have > to cost more it is amazing that getting more heat into the pot is so > frequently ignored. As Dr. Winiarski and Dr. Baldwin point out, optimized > heat transfer is a vitally import element in a good stove. > > [image: StoveCampFood]The progress with the TLUDs was impressive. Several > of the stoves worked well with different fuels and had adequate turn down > ratio. Paul Anderson helped everyone to understand TLUD mechanics and air > control. He was joined by Ron Larson, Art Donnelly, and others who are > evolving the TLUD approach. > > There is so much work that any motivated person could do, solving problems > of the poor and moving humanity towards a more fulfilling and elegant > future. Dean joked that even a monkey could follow the iterative design > method and would eventually come up with innovative solutions to issues > such as food drying, desalinization, solar heating, and stoves. All it > takes is making a change or two per day in the prototype and seeing if it > performs better or worse. That’s what we do here at Aprovecho and we hope > that it catches on. > > Sincerely, > > The Aprovecho Team > > Photos by Simon Anderson and Sanya Detweiler. Aprovecho Research Center > is a lab based in Cottage Grove, OR--visit the main > website<http://aprovecho.org/lab/index.php>for more information. Please email > [email protected] regarding subscription to these updates. > > > _______________________________________________ > Stoves mailing list > > to Send a Message to the list, use the email address > [email protected] > > to UNSUBSCRIBE or Change your List Settings use the web page > > http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org > > for more Biomass Cooking Stoves, News and Information see our web site: > http://stoves.bioenergylists.org/ > > >
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