Im planning on that one for sure. Im going to try and build the automation systems for it. If I can Id like to get a new Evolution Mini SS built to also bring. But might keep it light this year 
Yeah, I think we have the theory, we are all on the right track. I think this is major step in design evolution.
Oh, you are right! I though it was reading like 1500 degrees on the top one, but it is reading 150.0. I missed the decimal. I watched the video like 10 times before I noticed that. i couldn’t figure out why what you were saying and what I was seeing were two different things. But that was totally my mistake.
It is basically a closed top drizzler. you have enough space between the inlet and the wood/char to not burn up the nozzle. It keeps the air gap because of the top restriction, and it can’t fill up the bottom completely with pellets because they don’t flow freely and self-level.
Shaking it too much may cause it to level a bit, and you would lose some of the airflow gap. So you may need to extend the top inlet down a little bit, or add a chamber to the top of the bottom piece it attaches to.
I am not sure you -need- two chambers but it might be balancing some of the air pressure, and it is pre-heating/drying prior to entry into the second chamber. Did it help protect the fire from running up into the hopper without intervention?
I would try the cheaper softwood pellets in it, and see if you get similar results. The high ash for clinkers/bridging and I would guess higher tar would be a good challenge for it.
Hello Matt,
I am admiring your seriousness in your work, it includes a documentation on the same process that you test, the small passage between the two reactors, you will get a better result than xylowatt, which they, a passage too important, it is important that you send air in the second part, but it requires electronic management for good result.
Just for -that- it is totally worth having the 2 chambers. I was thinking you might be able have the 2 air inlets but skip the top chamber and reduce material costs. But it isn’t worth even testing if the second one stops the hopper from catching on fire.
seen that one before… remarkable… how similar minded people find similar examples…
Yup that is basically my original concept, I agree 100% on controlling the lower and thought of that to sustain the upper. But what Im seeing now and the way it it is working; with the absence of the hopper gases Im happy with the way it is working this way. Less complicated and the outcome is still the same of what I was trying to achieve with it.
Now I got to come up with smarty pants terminology for this reactor. The upper isnt really a reactor distillation Chamber?
Looking forward to seeing this up and running making wood chips to wood pellets for fuel, it is the main reason I have stayed away from a pellet gasifier, you had to buy the pellets. Might as well buy dino fuel. Well not really but close.
Bob
Looky what showed up today!!
This is 45 thou nickle screen for the Sabatier Reactor I will be experimenting with soon.
Are you tapping into your septic tank gasses?
No thats not how this reactor works. It uses engine exhaust gases and mix with the H in the gas to make CH4
You might be getting some shift already if you are using Stainless Steel. Honestly, I would think about wrapping it on the inside of the firetube, like just roll it up and let it spring back tightly against the tube. then put a clip or something to kind of hold it in place.
Well moving along here. Been running the Flex Mini here for a few weeks, ran into an issue, it started clogging up on me. Chased my tail around trying to figure out what was going on, so I decided to put a cross up inside the reduction that is welded to the grate. The only thing I could think of causing this was accumulation along the walls inside the reduction. Well I tore apart and found the actuator arm that rotates the grate was loose. So that was most likely the issue, but since I was already going to do this I and its a proto why not experiment with inserting the cross in there. So far so good, but not enough time with it to make any conclusion of whether or not its doing anything. Im working on a new mixer controller for it, that just uses an O2 sensor with out the use of any kit for the 5 volt conversion. Hope to have this up in action by end of day tomorrow.
So with this revelation of how this works, I am now working on another very small prototype for sawdust. This has a unique grate and jet planes are omitted and this one has stacked plates that are chambered to create jets and are angled. The air intake should swirl inside the void of the lower hearth bowl before contacting the fuel. The grate is a series of stacked rings each step up the ring gets smaller. This one is tiny so there is only three grate rings.
I started work on the new Evolution Mini, Im hopping to get this one complete to take along to argos along with the “Dustifier” and the Flex Mini prototype. The ovel construction method worked out well and was easier than anticipated. The crab steering turned out very well and is also simpler than the old version. This new machine is going to be much more compact and a better machine over all then the Utility predecessor. 
I am looking forward very much to Argos this year. Looks like it will be well worth the effort to drive out!
Robin,
Any chance that I will get to see you on your way to or from Argos?
Hi Bruce,
There might be a chance on the way back, the following Monday, if you aren’t at work when we pass by. We would love to visit and see what you’ve been up to these last few years!
Well the agitator cross is a no go. It melted in half!! haha. Interesting it goes from melting metal down to 450*f gas exit temps in this short of distance.
Here is progress on the Evolution Mini. I think I have all I need on order to get this complete and ready to go for Argos. The saw dust machine didnt quite work but was fun to experiment. I may make a few changes to run on pellets and bring along for fun as its a tiny little machine.
Have you tried ceramic blanket inside the fire tube yet. I am moveing my heat recovery too after the ceramic blanket, too hopefully retain more heat in the reaction zone, bringing hot recovery heat back too the hot blanket.??? BBB.SWEM.
Yes, since this new version, we are not flowing the gas up the outer jacket that surrounds the reduction core, this chamber is now void and filled with ceramic. Also since the cyclone is eliminated there is no longer an exit port coming off the gasiifer. So as you see there the SS jacket can now extend down to the collection tank. There is also a void between this jacket and the reduction core. This is also filled with ceramic.
