[Gasification] Chunking wood for small scale biochar production, fotos !

Erin Rasmussen erin at trmiles.com
Tue Jan 7 11:58:20 CST 2014

Rolf's previous photos of the Jensen woodchoppers are here:
- Erin Rasmussen
erin at trmiles.com 

-----Original Message-----
From: Energies Naturals C.B. [mailto:energiesnaturals at gmx.de] 
Sent: Tuesday, January 07, 2014 8:34 AM
To: gasification at lists.bioenergylists.org
Cc: energiesnaturals; Discussion of biomass pyrolysis and gasification
Subject: Chunking wood for small scale biochar production, fotos !

On Thu, 02 Jan 2014 01:43:37 +0100
energiesnaturals <energiesnaturals at gmx.de> wrote:

> 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
> 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
> _______________________________________________
> Gasification mailing list
> to Send a Message to the list, use the email address 
> Gasification at bioenergylists.org
> to UNSUBSCRIBE or Change your List Settings use the web page 
> http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bi
> oenergylists.org
> for more Gasifiers,  News and Information see our web site:
> http://gasifiers.bioenergylists.org/

More information about the Gasification mailing list