Thank you Joni for huge amount of information. And congratulations because you have excellent results. I am thinking a lot now.
Rindert
this is an achievement report from two years ago so thank you to all the band members!
Steve,
from the removal of large coals from the gas generator, I used a mesh with a cell of 2 mm (located inside the gas generator), and almost no settling at the bottom of the cooler was observed (the pipe was thin enough and the gas velocity prevented clogging), in addition, there was condensation on the walls, which washed everything away into the filter, the lower part of which served as a collector of condensate and debris.
Do you want to see a diagram of this gas generator, with dimensions? 
I want a lot of likes! Very many likes! 
this video of work GJ -8
One like from me.
But be warned this is open source to all searchable here. Members or not.
Only behind the Premium wall has some protection.
S.U.
Ha! But I’m not a premium class member, and I can’t go there!
Don’t forget, this is already an outdated model!
In Ukraine, it is freely available!
Joni; Looking at the far side (inside), about a hand width down, there appears to be a shelf. I don’t see it in the next picture. TomC
Joni: What is this square opening ( a drain for condensate?) Looks like a inside circumferential weld. Is that a condensation gutter? TomC
Joni; Are these covers feeding the tyeres with air from the hopper?
In a video, when you closed the hopper lid, I heard a ‘‘clank’’. How does it seal. I’d like to see your lid in more detail. TomC
TomC,
in the lid there is a double collar with an embedded fireproof fiberglass cord.
Hi Tom, I build my inspection hatch on my truck Gasifier this way it never leaks, and it is by my cross over area. It get to 800 *f in this area.
Bob
I like you air inlet safety flap. Many do not as a point that can tar stick shut. Many now have evolved to lighting down from the top by a tool bored hole in the char stack.
So they forget to flick this flapper loose free.
On stationary systems I can audibly judge a systems gas loading by the “tic-tic” frequency.
So to me these are always friendly “all-is-well” tic-tic valves.
Yes I can see your char capture grid in the diagram.
Your dimensions are all accepted ranges.
Now. Read this next very carefully. Many, many even on the DOW still look for a barriers-breaking; new-design; all-problems-solver, system.
And fail to realize it is many, many small details working in balance.
And you, Sir: design and build elements balanced systems.
Regards
Steve unruh
Topic bump up.
Here is a completely different newly designed system from a completely different source and no interests? No additional questions?
Shame. Shame.
Joni in the cooler tube assembly on post #12 the cooler tubes have a standing up rib on their upper side.
Is this a welded on stiffening rib?
Or was this tube formed from flat sheet metal around a forming mandrel. With the flat sheet stock edges then pulled into then a standing edge? Those edges then welded?
Thank you
Steve unruh
S.U.
Hi Steve, ever since Joni posted this diagram on his thread I have been studying it hard. Just trying to figure out how he welded it all up. It is a solid weld unit. Like Kristijan does.
It is causing a bald spot on my head from all the head scratching I have done.
The screen that keeps the char from leaving the gasifer, that has got me stumped. I know it has to be done with a stick welder. Maybe I am not seeing something that is very obvious. JONI has really got me thinking on this one.
Do you notice how he has the gas FLOWING through the gasifer in a Diagonal flow path two different directions.
The extension of the fire tube barrel below the grate, and then the gas goes up to the char screen. This causes the ash to drop out. The gases are vortexng at the edge before it gets to the screen. Also look at the offset that causes a pressure difference from one side to the other side. This is like having a cyclone spinning efficient. Look closely to his five nozzle preheat cover it does not go all the way around. There is a space, I think this is the area where the gases leave the gasifer. This build is very different from other builds that I have looked at, I have looked at a lot of designs in our library. My thought is by shortening the nozzles you will even create a longer diagonal drop distance for the gases to travel. I need to look at this a lot more and study it.
Bob
Compare to this for the removable floor plate! Production details versus his admitted build from scrap, trial unit.
Note also that on both of these the whole guts are shifted to one side to allow for a larger collected up volume flowing space on the outlet side.
Devilish details Bob. Thoughtful flow gas, clever.
With Joni I now look for experienced based reasons for everything he has evolved to doing.
Search my own operational units experiences (and constant velocity carburetors SU’s and Solex’s experiences), and then . . . of course!
S.U.
Steve,
This is a factory-made pipe, accidentally hitting me at a metal collection point. It is made of sheet and the stiffener is the joint.
Steve; If ypu go back to the beginning, you will see that I asked several questions. I got one answer on one of the simplest questions. From that and the comments about this being an early design and newer versions were redably available in the Ukraine, (post #27)made me think if we aren’t willing to openly share ‘‘ours’’, we can go dig the details out for ourselves. To that I say, if he contacts me, I would do what I can to ‘‘gift’’ him a copy of DOW and get him a ‘‘premium’’ membership. TomC