Richard,
One observation that does not refute anything you wrote, except to point
out that the TLUD micro-gasifers are somewhat different regarding the
re-circulation (re-processing) of created char being put into new
briquettes.
Essentially, char that is mixed into a fuel briquetted will pass through
the pyrolysis process of a TLUD without being burned. And TLUDs are not
intended to be charcoal burners. Therefore, char that is created in
TLUDs should either be used as biochar or be burned (as briquettes or as
whole pieces of char) in stoves specifically designed to burn charcoal.
Paul
Doc / Dr TLUD / Prof. Paul S. Anderson, PhD
Email: [email protected]
Skype: paultlud Phone: +1-309-452-7072
Website: www.drtlud.com
On 11/11/2013 7:45 AM, Richard Stanley wrote:
Dean;
here here !
And when one adds up the cost of making the char, it does not make sense
economically for the small biomass briquetter to spend their time making it as
an added activity for their group. Not here in Sacapulas or in Sta Eulalia,
Lanquin san Pablo or anywhere else in Guatemala that we can see, and not in
East africa and not in the rest of the 67 odd nations who are briquetting now
either. And it is the economic sense of it all that determines its
sustainability, not our personal feelings about the envionment and such.
Bio char is great in itself but for budda's sake, I fee that one should be
using the char from the previous fire and from the charcoal seller to make more
charcoal briquettes which makes more char etc… Our numbers suggecst that its
quite sustainable as a fuel source --as blended (up to 50% --dry weight to dry
weight) into the standard variety of agro-residue briquette at least..
Multiosh a todos,
Richard Stanley
Guatemala
====
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