[Stoves] Stove Camp Newsletter 2013

[Dean Still]

Hi Rogerio,

The IAP meter hood is being developed and tested. Email Sanya and she can
keep you informed.
 I think it will cost less than $4,000 and be useful for improving stoves
but not for comparison of different stoves.

sanya at aprovecho.org

Best,

Dean

On Fri, Aug 2, 2013 at 3:39 AM, Rogerio carneiro de miranda <
carneirodemiranda at gmail.com> wrote:

> 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 <deankstill at gmail.com>
>
>>
>>
>>
>>      [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
>> sanya at aprovecho.org regarding subscription to these updates.
>>
>>
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