Thanks Thierry for the kind words. The spirit might be inexhaustible but I feel the body is starting the exhaustible journey.
Gasifying/carbonizing straw can be performed with little or no
additional air. Slow go method. Once some activation energy (like a lite
match) is applied there is enough air in the stem and around it to keep
it smoldering or gasifying slowly for a long time.
Why not use the Roger Sampson Rice Husk Carbonizer method to make
biochar in the field with no equipment…?? I did. Here’s the method…
Make a tin fire box with a chimmeny. Chop and blow or pile your straw
around the ignitor you made. When you get the time drop some fuel down
the chemmeny and into the box. Some diesel and drop a lighted rag down
the hole. Hose it down when fire shows up on the surface. Better yet
wait till winter with a few feet of snow on it… That’s what I wanted
to try but got out of weed before I had the time. Make sure you don’t do
this under electric lines the first time. You will need to spray water on the pile at the right time in order to keep the fire from burning up the charcoal.
Wet weed or rain… No problem because the compost bugs will dry it
out. Plus you will have a nice 8" layer of wet weed or straw to help
stop the burn.
Fire box and stack.
Opps, that was a large photo… Anybody know if I can delete that…???
Years later when I drag a log over this area it turns up nice black soil. But it is interesting that you could not tell from the vegetation that is growing in this area.