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