Due to a very hot and dry summer here in Australia , i have not had much need to run my charcoal generator that often the past few months , well that was up until a few weeks ago when i noticed the lack of sunshine on my panels due to the smoke from the bushfires and then 4 days ago clouds covering us for about 4 days , i live half way up a mountain and so we often have our heads in the clouds up here and its at least 4 degs cooler .
I have limited amount of charcoal left to see me through the fire ban period , so no burning off out side and far too hot to light my wood burning stove indoors , that’s where most my daily engine running charcoal comes from , and so the other day i ran my generator a lot longer than normal , well till the engine stopped if i am honest , and to show you what i found the next day when i went out to refill my system .
First i have to let you know that i have changed my typical 55 gal updraft Gasifer slightly i have a 30 gal barrel within the 55 gal drum while experimenting and not got round to changing it just yet ,and anyway this is what greeted me when opening up and cleaning my system .
notice the white ash covering everything !
this is the lid
from the outlet fitting on the lid the 1 inch pipe goes off to a cyclone with a condensation trap on the bottom ( forgot to take a photo of that as there was nothing showing in the jar at the bottom , so strange will open that up in a while and maybe the cyclone is gummed up with damp charcoal dust )
from the cyclone it feeds into a 8 inch x 32 inch tall thick walled tube that was once my small gasifier , this tube i fill with open cell foam and lambs wool , this tube i have now found out was once part of a sausage meat stuffing machine
this is the open cell foam and lambs wool
Again you can see that the white dust has managed to get past the filter material and carry on up stream towards the engine where i have the last line of defense , and that’s a inline water filter with a fine mesh basket , and i have wrapped a small piece of micro cleaning cloth around it this is what it looked like before and after i gave it a wash out out
So the next photo is the inlet barb into the gas/air mix valve
And as you can see no white dust what so ever managed to get past that micro cloth and into the engine .
Ok so now what do you think that white dust could be ? , i have always had a little on the outer walls of all my gasifers builds when i have run low , but never this amount before maybe its a mineral or something along those lines
I have decided to pull my finger out and do what i said i would do a year or so back and try building a simple downdraft charcoal gasifier i have 1 maybe 2 idea’s i want to try and wondered does anyone else have thoughts on what they they would try ? i know Kristijan’s multi nozzle downdraft looked real good and had plenty of gas .