tone, you need a car for resolving your fuel problems…both mazda´s are waiting…
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Thierry, the screw branch cutter is the optimal solution for my needs, it pulls branches much better than the Rebak and smoothly cuts all the small twigs, the cutting speed is indeed a bit slower and it needs more power to drive, but one person has to work quickly to add branches to the chute, well, my son Domen helps me.
Giorgio, I really “urgently” need another wood fuel consumer - Mazda,… Too bad Goran lives so far away,…
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and i would say, how we know tone, he likes to make some experiments with the outdoor stored fuel…when the free water in the pile is more or less evaporated, can the new gasifier with hopper heating by exhaust and umidity remove by water cooled shell digest this kind of stored fuel…?would be a revolutionary fuel storage method, without buildings and roofs…
i think he can
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Tone seems to have excess wood fuel. You wish there were a market for that. We need more woodgas drivers!
Rindert
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Today was a warm spring day, I started the gasifier early in the morning and then drove to the plot where I clean the bushes, there were still a few branches left for my chipper, I deposited them outside again, then I used a wedge harrow to grab the remaining small branches into a pile, Fergie is a good helper.
A neighbor lent me a manure spreader, I distributed 4 loads to two fields, here is a picture when I stopped the tractor for lunch,…
quick start after lunch
If you have the right tools, work is fun.
Fergie worked hard practically from morning to night…
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If only more people understood this.
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Tone, a question that keeps coming up. Do you think your gasifier can run on sawdust?
Maybe, with all those nozzles?
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Joep, I don’t know how to answer this question. Sawdust is a very light material, when drying and pyrolysis are done, these small pieces of charcoal are easily removed in the process gas flow, in order to provide a layer with glowing charcoal, a special design of this area is needed. Down through the grate, according to the “classical” method, I don’t think it will work, suction to the side will quickly empty the gasifier and will not ensure that the hot zone with activated charcoal is maintained, … I imagine that the gasifier for sawdust should perform drying and pyrolysis according to the classic downward process, then the gas flow would push the fine charcoal into the center tube, where the reduction would take place in the upward process, fresh air would flow from below through the middle nozzle, …
I will try to draw a sketch, …
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you thought about it, that is something.
Keep it coming Tone, I love it.
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Didn’t the Drizzler design use some form of auger fed saw dust? I don’t recall if they ever got the bugs out or not. With my limited knowledge the design didn’t make much sense to me.
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Well. I liked the design but it made tar. For me as an unexperienced guy it is impossible to determine if it is a lot, or not.
Look at Tone s design or the WK, heat is the key. The Drizzler guys were even cooling the gasifier. Anyway, they were offered a job somewhere and never heard of.
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Joep, this is how I imagine a sawdust gasifier,…
-above is the condensation zone
-fresh air creates a thermal barrier for heating the condensate
-sawdust dries and settles to an area with a higher temperature, the transverse pipes that lead the gas from the hot zone are made of rectangular pipes, which do not represent a big obstacle
-when the sawdust reaches the hot area with the air supply, pyrolysis occurs quickly, and the gas flow carries small pieces of charcoal inward past the narrower ring of air nozzles, then the gas flow is redirected upwards
-the upward flow lifts and mixes the remaining pieces of charcoal, which turn into ash, well, the gas flow continues its path upwards along the narrower pipe and then through four outwards to the jacket, which forces the hot gas mixed with ash to descend downwards, where it deposits most of the ash due to the reduced speed
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Hi Tone
Why was the gas channeled towards the center of the gasifier? Was it to concentrate the heat and achieve maximum conversion of all products, without loss? The saw probably facilitated this design; small pieces of wood were more likely to bridge. 
Thierry Québec
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These days I was loading compost at my neighbor’s, his landfill was about a kilometer and a half away, well, the afternoon is short and it gets dark quickly,…
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Thierry, it’s hard for me to answer a question that I don’t know the answer to myself, I just imagine and think about what happens in a gasifier of small pieces of wood. Now that I’m using a new gasifier and testing it on different sizes of wood, there’s also bark dust in between and I’ve already burned some logs in it, it’s really not picky about fuel,… I can say that the very bottom nozzles work “clean” the bottom of the hot zone, while the middle nozzle provides heat in the middle and cleans the grate through the restriction opening. We must be aware that there must always be an excess of charcoal behind the nozzle, otherwise “hot leaks” occur, how to ensure this when gasifying sawdust? If the gasification is going down, either a blockage or a “hot leak” will occur, so I imagine that the gas flow would push the light little pieces of charcoal into the center tube, where they would float in the gas flow and create conditions for reduction. The diameter of this tube would provide a slow gas flow, so that the charcoal would stay there until ash was formed.
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tone, impressive power of fergie, good days now become longer…generally you would need a 30 hours day
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That reminds me of one of the Ten Commandments that I could never keep - “six days shall you labor and do ALL thy work” I could never seem to do it ALL.
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Don, that’s true. But, of course it depends on what you consider labour. For instance, I prefer chunking on a sunny day before coctail partys, champagne and caviar. Does that count? 
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I love ya and all, but for some reason, I just can’t imagine you at a cocktail party. I can’t even comprehend it. 
Maybe I just need to get back to boiling sugar water.
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Preparing the fields for sowing,… I don’t save fuel, even though diesel fuel is getting expensive,…
It took me a while to set up my phone to record the video, so the tractor didn’t run at full power the first lap around the field, you can see the difference in performance later when I shifted into a higher gear,…
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