Crispin, see below:
Am 12.10.2011 um 15:19 schrieb Crispin Pemberton-Pigott:
There are other initiatives to make stoves based on the approach
Alexis has taken. Paul has other models that show some promise as
well.
CR: Which Paul do you mean? I was talking of Paul Olivier below, who
has taken Belonios concept to a new era.
The Mayon Turbo Stove is not perfected yet and I don’t think much is
being invested in trying. It holds promise from the point that it
does not require a fan. I worked on one here (in Waterloo) earlier
this year together with two interns from REAP. We doubled the
overall efficiency but created new problems that it got too hot. It
needs additional work to keep the fuel cool. There are of course
other ways to burn the fuel with natural draft. Maybe with the
advent of cheap power from TEGs we will all make fan stoves and not
worry about natural draft any more.
The MTS has the important advantage that is can be refuelled
continuously at your convenience. It does not need to be loaded in
batches.
CR: But the disadvantage I noted is that it needs a lot of attention:
we had to tap the stove every two minutes last year in Belchertown
with the colleagues from REAP to assist gravity and make the rice
husks fall down, otherwise there was no continuous feed adn the fire
would go out. Maybe that 'spoonfeeding' can be reduced with skills and
acquired habits, but as an unskilled user I found it rather
inconvenient.
Regards
Crispin
+++++++
The best rice-husk burning stoves I know of are the ones based on
the tremendous work of Alexis Belonio. Paul Olivier' s work in
Vietnam has taken rice-husk burning stoves in the household-size
range to another level, uncomparable with natural-draft stoves like
the Mayon Turbo, LoTrau or whichever. Paul has generously shared a
lot of his work on this list in the last days, so you can look more
details up from the links provided there or consult the section on
rice-husk burning gasifiers, pages 43-48 of the manual
microgasification http://www.gtz.de/de/dokumente/giz2011-en-micro-gasification.pdf
,
it contains all I found as per last year. If anybody knows of models
that are not included there, please let me know, so that they can be
included in the next update.
regards
christa
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