[Stoves] Stoves Digest, Vol 32, Issue 29

[Boll, Martin Dr.]

Frank,

I remind what AJH a lot of time ago said about same stoves which are run in different countries.
In GB there is a total different climate compared with the Sahel-zone. The same wood (as the real same exists) has normally different moisture, and so needs other stove-settings or even different stoves.

Think as well of different altitude, of different windy conditions, different surrounding temperature.
A stove by the Inuit in winter will perform different from a likely stove run in Mexico in summer, even when run with the same fuel.  -Light e.g. two small cans filled with alcohol by -15°C or by 20°C and try to ignite with a spark. The cold is difficult to start, the warm excellent.
- The spitting type of the fuel(wood) matters and differs, e.g. kindling cut in square sticks differ from kindling cut in triangle-sticks. 
There is _so many_    _ much_  different, that your work will be very hard. Some things could be not comparable because of important differences in (outer) circumstances during the run of the stove

I don't know if it would be helpful to differentiate between regions which have different given facts to run a stove, and make a clusters of regions which are close to the same circumstances.
It would connect locally far distant areas with the same needs closer together in (their people's) thinking about same needed stoves,
 It would give some not respected, or less respected aspects for the stove-developping a bigger weight, which possibly is needed in  _that_ (related/connected) regions.

Seen from the point of view of one of those "region"-clusters, I think your boxes will fit far better and fail less, and give better information because the outer circumstances are more or less the same.

Regards

Martin 



> 
> Message: 1
> Date: Tue, 23 Apr 2013 11:31:04 -0700
> From: "Frank Shields" <frank at compostlab.com>
> To: "'Discussion of biomass cooking stoves'"
> 	<stoves at lists.bioenergylists.org>
> Subject: [Stoves] Six BOX Program
> Message-ID: <009c01ce4050$b6c18420$24448c60$@compostlab.com>
> Content-Type: text/plain; charset="iso-8859-1"
> 
> Dear Stovers,
> 
> 
> 
> Getting Organized with the Six Box Program
> 
> BOX 1: Fuel(s)
> 
> BOX 2: Fuel manipulation between BOX 1 and BOX 3
> 
> BOX 3: Stove(s)
> 
> BOX 4: Utensil(s)
> 
> BOX 5: Manipulation between BOX 4 and BOX 6
> 
> BOX 6: Task(s)
> 
> 
> 
> The final report conclusion is the fuel used from BOX 1 to do the task in
> BOX 6 to come up with a (Fuel / Task) value. Fuel being so variable but all
> having the common element Carbon we convert the fuel used to carbon used for
> the final result of (Carbon / Task). The body of the report has all the
> parameters for each of the six variables (BOXES) that resulted in the
> conclusion. That so this process can be repeated by any lab and NGOs can
> pick from a list of stoves that have been tested using the fuel and tasks
> common to the location.  
> 
> 
> 
> Example report might go something like this:
> 
> 
> 
> BOX 1: Fuel used is: sticks, 25 to 30cm long, 10 to 20 % moisture, ~? bark
> and ? split, curve ~ 1 to 5 % length off center, ????  Carbon content to be
> determined later if not available or estimated at 44% dw.     
> 
> 
> 
> BOX 2: How and how frequent the fuel is placed in the stove. As Paul
> Anderson pointed out this should be as it will be done in the field with
> possibly one person cooking and adding fuel at the same time. A lab
> instruction for operating the stove is based on observations.
> 
> 
> 
> BOX 3: Stoves; name, model number, designer etc. Also within this BOX 3 is
> where HHV, LHV, condensation, tar build-up, particles, gas emissions, heat
> transfer and other stove research is conducted. The better the workings of
> BOX 3 (same for the other 5 BOXES) the better the overall Carbon / Task data
> will look. 
> 
> 
> 
> BOX 4: This is describing the Utensil (pot, pan) used for the particular
> stove and task. Size, metal thickness, metal type, cover, etc. 
> 
> 
> 
> BOX 5: The heat from the stove splits and some go into and through the
> Utensil and the rest up the stack. The heat coming through the Utensil hits
> the Task. This is where the How and Frequency the cook manipulates the
> cooking process to distribute the heat is recorded. Stir the pot of water or
> flipping the pancake. Instructions for this should also be based on
> observation in the field to instruct the lab. 
> 
> 
> 
> BOX 6: Completed Task recording quality and how well liked in the field (?)
> the process went etc. 
> 
> Conclusion is the Carbon used / Task. There can be more than one task during
> this process if the stove is kept fuelled to heat a room or for light or to
> keep hot coals to make easy to start the next fire. Or this program can be
> added on to another Six BOX Program using the left over char as BOX 1. 
> 
> 
> 
> Just some ideas.
> 
> 
> 
> 
> 
> Thanks
> 
> 
> 
> Frank
> 
> 
> 
> 
> 
> Thanks 
> 
> 
> 
> Frank Shields
> 
> 
> 
> BioChar Division
> 
> Control Laboratories, Inc. 
> 
> 42 Hangar Way
> 
> Watsonville, CE  95076
> 
> 
> 
> (831) 724-5422 tel
> 
> (81) 724-3188 fax
> 
> frank at biocharlab.com
> 
> www.controllabs.com
> 
>