[Gasification] Chunking wood for small scale biochar production, fotos !
Energies Naturals C.B.
energiesnaturals at gmx.de
Wed Jan 8 09:27:46 CST 2014
On Thu, 02 Jan 2014 01:43:37 +0100
energiesnaturals <energiesnaturals at gmx.de> wrote:
See http://www.gasification.bioenergylists.org/uhlejensenchopper
> Hello chunkers,
>
> For small manual chunking devices I cannot help much, but I see that there
is also some interest in more mecanized solutions.
>
> At least in Europe you can still find many of the old Jensen woodchoppers
with 6 and 12 cm long chunks produced and up to15 cm diameter.
>
> I remember putting a series of fotos on the list some years ago, perhaps
on the bioenergy list.
>
> Have a good year!
>
> Rolf
>
>
>
>
> Enviado desde Samsung tabletDavid Coote <dccoote at mira.net> escribió:An
inexpensive tool to chunk efficiently wood for small scale biochar
> production would be very handy. I have loads of waste woody biomass on
> my farm. There's no community scale biomass energy plants in the
> northern hemisphere sense in Gippsland (SE corner of Australia) so no
> local markets of this nature for the material. This may change in the
> next few years but in the interim I'd like to make some char as a
> weekend project. One of my nephews is a qualified boiler maker with
> tickets for various specialist welding techniques. He's interested in
> building a small char system. This would probably be similar to the
> popular 44 gallon drum with internal retort (so an indirect
> implementation) but using a better quality steel so a bit longer
> lasting. And we'll lag the drum, put a safety enclosure around it and so
on.
>
> One of the challenges of trying to do this beyond a hobby approach is
> chunking the material to be used for combustion and char. I haven't got
> time to lovingly handcarve the feedstock into the appropriate size and
> form. Using an axe, saw, firewood splitter, bypass pruners would all be
> possible for different sized feedstocks (windthrow, prunings, thinnings,
> harvest residue etc) albeit labour intensive. Something like an old
> chaff cutter would be very useful for some feedstocks. I think there are
> some commercial chunkers that would do what I want but they are
> prohibitively expensive
>
> David
>
>
>
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