[Stoves] Only high-power combustion (extracted from: Report on institutional stoves in Uganda

[Paul S. Anderson]

Stovers,

First:  Damon's report on the Uganda institutional cooking data is 
excellent.  I
recommend it to everyone who does comparisons of stoves for usage and 
for costs.
The URL is below.

Second:  From that report I have copied 3 sentences relating to high-power
stoves:

"The actual procedure for cooking beans in northern Uganda uses high 
power only.
There is no simmering period. Beans are boiled vigorously for the entire time
they are cooking."   Also noted:  No saving of char.

How common is ONLY "high power" combustion in various societies?  Please note
that "simmering" (low-power cooking) is still possible at the edges of the
high-power stove.  The question is about the continual use of high 
power in the
stove, or if a stove is operated at high power for MOST of the time, and then
simply allowing the fire to burn itself out instead of being fed fuel only for
simmering.

Plancha stoves (common in Latin America and including tortilla making) seem to
be operated mainly on high power, and some pots can be set partially on the
side of the plancha to have a simmer.  Plancha stoves are relatively high-mass
stoves (even when insulative materials are used) compared to the 
smaller, metal
one-pot stoves that we so often think of.

Most stoves, including my gasifiers, will operate more cleanly if operated at
high power.  In some societies, the amount of fuel used is NOT as important as
we tend to make it.

Paul

Quoting OGLE-D/M <monogle at oregoncoast.com>:

> See: http://www.bioenergylists.org/en/ogleuganda07
>
>    I am attaching a report on the institutional barrel stove pilot
> project in Uganda.
>
>    I think people will find it interesting as it gives a comparison
> between WBT (lab) results and CCT (field) results for the same stove.

-- 
Paul S. Anderson, Ph.D., Geography professor - Emeritus
Telephone:  USA-309-452-7072 (residence and office)
Internet site:  www.ilstu.edu/~psanders
For my gasifier stoves info, go to:
http://bioenergylists.org/contributors#Paul_Anderson



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