Kevin, thank you. You were wery close! Didnt actualy measure it…
This thick steel nozzle pipe in on the bottom faceing up for a updraft sistem.
What Til sayd. Here, the soot will be sprayed trugh the exhaust injector stright in to the air intake. No long pipes, danger of ash plugging.
I dubt a larger nozzle wuld help, the problem is the mailbox is just 30 cm wide. The nozzle-outtake height is about the same.
I was thinking if making that grinding knife in the cyclone, but decided to try as it is. The perforation on gas outtake is wery small.
Pellet char. You are right. I got a sack for my birthsday as a funny gift and l made charcoal out of them. This is premium stuff. Ideal size, no dusting, mechanicly stable and have a bulk density of 350g/l. Mixed wood char is 170g/l.
This sayd, a full hopper of pellet char shuld drivel me about 200km!
Regarding the insulation in the reactor. It seems some will still be neaded. Right now l am thinking either a metalic iner liner with chardust around the walls, or a perlite/refractory lineing, or rockwool. Any suggestions? Cheramic wool wuld be best but its expensive and l dont kniw where to get it.
Oh, and one other thing. Where wuld it bebest to take the exhaust from? I was thinking just before the first mufler. Reasonably cool and still enough pressure.