[Stoves] Charcoal Rocket Stove, Charing in a "low-cost retort kiln" ICPS

[adam u partner]

Crispin Pemberton-Pigott schrieb:

Dear Crispin,
thanks for giving a word that there is enough bio mass left-overs
in a forest to be charred efficiency (... There are many losses in
the forest all of which could be charcoaled, especially using
the retort systems that nearly eliminate the negative emissions...)

I just concepted that 8 oils drums (à 200 litres) will fit perfectly
into the "low-cost retort kiln". (ICPS,
Improved Charcoal Production System).
The oils drums would give 3 advantages:
(It would work in a way similar to the ARTI Retorts)

 *  Bio mass can be easily and quickly loaded and offloaded into the retort
* Batch cycles to operate the retort will be shorter because the
charcoal will not cool any more in the retort, however outside.
* High efficiency because the heat of the fire box will first concentrate
on the 1st two oil drums and provoke pyrolysis gases (wood gas).
This heat available from burning the wood gases will push the next
2 oil drums, again this will push the next two oil drums and finally push
carbonization in the last drums 7 and 8.
(This would be different to the ARTI retort as they do not get heat one 
by one)
Best
Chris ADAM


> Dear Dr Tom
> I want to disagree slightly with your "red herring" comment.  I was in 
> agreement with this until recently when a lot more charcoal from 
> non-traditional sources became available.
>
> Yes, it was about forests and inefficient conversion and better wood stoves 
> and alla that.
>
> Bu-u-ut.... now we have bullrushes compacted into 'wood' and charcoaled, we 
> have sugar cane leaves made into custom shapes exacly suited to highly 
> efficient stoves.  This is a major change in the stove industry because it 
> means we are looking at using a very nice fuel in the longer term, freed 
> from the need to cut trees to get it.
>
> There are many losses in the forest all of which could be charcoaled, 
> especially using the retort systems that nearly eliminate the negative 
> emissions.  Obviously burning the gases for some useful purpose like 
> kiln-drying wood would be a good use.  Agreed.
>
> But charcoal, like paraffin, is here permanently as part of the fuel supply. 
> Paraffin?  Yes, because it can be made from all sorts of bio-oils. 
> Bio-paraffin.  Just like bio-diesel.
> Best regards
> Crispin
>
> So, while charcoal is easier to use, efficiency, economy and
> environmental cleanliness favor clean combustion of wood in WoodGas
> stoves or other improved stoves.  *Charcoal is a red herring* *fuel *in
> the larger overall view of biomass fuels (unless you are using the
> energy from the volatiles for other purposes).
>   
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