Updraft Countercurrent Woodchip Gasifier Model

This small gasifier can burn damp, dirty woodchips cleanly. It employs countercurrent gasification that produces gas that is NOT SUITABLE for fueling engines but is suitable for heating. The exhaust from this kind of burner is quite clean and won't foul a heat exchanger.

[@briannugent5518]

A great feature is the no welding requirement for a lightweight gasifier system!.

[@meredithromo6353]

Good project. Your initial smoke is due to the moisture in the wood chips. Once that is overcome you're burning clean. Note than when you add new chips you have smoke in the chamber again, but by then you're running so hot in doesn't leave the chamber. Thanks for sharing. I picked up some key knowledge in a personal rocket stove project.

[@senorjp21]

Thanks for your comment. I found a better way to start the gasifier by "priming" it with charcoal. This is a pretty smokeless way to start up. During operation the gasifier produces its own charcoal.

[@MAGnetICus_Attractus]

@@senorjp21 I wet the pellets with 95% everclear. You will see a lot less smoke on start up.

[@bluehydrogen1]

Very simple but, lot of knowledge . Thanks

[@thekoolkidsrock]

Very interesting video holy. I would love to make one, all I think I need is a proper fan

[@pakjokohartono]

Thank for sharing the great video, keept safe and healthy

[@Mladen365]

Very cool,nice burn,greeting

[@wjstewdog]

Great invention!

[@CNCmachiningisfun]

That flame represents a fair number of kilowatts.
If processed, and fed to a generator, you'd have a lovely collection of electricities :) .

[@senorjp21]

Absolutely. There is a lot of biomass energy lying around, but it is typically very poor quality fuel: wet, contaminated with dirt, high-ash. This type of gasifier is capable of burning those poor fuels cleanly (at operating temperature.)

[@CNCmachiningisfun]

@@senorjp21
Indeed. You have a very capable system there.
I bet it would serve very effectively in a water heating application.

[@jacklarson6281]

this is awesome. I'm surprised others have not picked up on it yet
defiantly an Archimedes screw to feed chips in at a constant rate would make it the Bees Knees..
keep working on this one bro. 🤙

[@senorjp21]

Thanks. Note that this isn't a gasifier for running an engine. This design of gasifier is just for heat. I'm hoping to make a very clean way to burn very poor biomass fuels for heating. Although... I think it might be possible to tap off some engine grade gas from a point in the column while the gasifier is running e.g. at the top of the charcoal layer.

[@shtfengineering7472]

@@senorjp21 I am building an updraft gasifier now. My plan was to filter the output through a bubbler with water and store in a gasometer to filter the smallest particles out over time. The result should be very clean gas suitable for engines and cooking food. I hope this helps. Great job with this build man!

[@metheewatchakittikorn4796]

Love it.

[@BAMBANGSUGENGRIADI]

Thanks for sharing

[@senorjp21]

Thanks for watching!

[@downunder5594]

I think this has potential

[@senorjp21]

This technology is in use today. Most gasification research is for "engine grade" fuel gas, and that is much more challenging. For heat, updraft countercurrent is a slamdunk. I know some lumber mills that use this kind of gasifier to run kilns, etc. They burn soaking wet bark mixed with dirt and gravel - no use if you were trying to run an internal combustion engine.

[@ramzeneger]

Thank you and thank you!!!

[@r.connor9280]

I've had an idea for a gasifier based off the idea of Hero's steam jet system
Any thoughts from more informed folks?

[@wnik1388]

Good explanation, this I'm looking for . do you have combutiin inner drawing

[@senorjp21]

Sorry. I only have the videos. You can find diagrams of updraft countercurrent gasifiers on the web. They are often just called "updraft" gasifiers. They are simple compared to downdraft gasifiers.

[@dantronics1682]

Very good! pity you didnt have some sort of time stamp to give us an idea of how often you were feeding it,

[@senorjp21]

Short answer: constantly. This kind of gasifier needs an even, continuous supply of fuel - e.g. supplied by an auger using a level sensor

[@GENECARP]

Holy shit

[@williammcallen6808]

Initially instead of wood pellets, try charcoal,.

[@greghackney8437]

Good for junk mail?

[@markoaviator4141]

Hello mr Jesse. Can you send me some drawings of these Updraft Countercurrent Woodchip Gasifier I would like to try to made one for my workshop.
Thanks in advance.

[@senorjp21]

Try here biofuelsacademy.org/index.html%3Fp=197.html Counter-current gasifiers like this are for making heat, not running an engine. Good luck.

[@TecKnowFreak]

Thing is you have no efficiency when u force the air in all the time you just made a blast burner to burn a ton of wood chips but loose out on the benefits of the gasification of wood updrafts just need a gas flow pipe threw the fuel to move the gas up making the draft side on its own! no reason to force air but to get it lit and going!

[@senorjp21]

Yes it would be better to operate at negative pressure. The reason I'm interested in updraft is to dry wet fuels so low quality fuels can be burned cleanly

[@mr_korwagdy1257]

@@senorjp21 i have a question, i have a barrel and i want to use what i watched with your video as a flame or fuel but the point here is when the temperature goes to 120C or much i want to decrease it to reach 60 f or 70 C so how can we control the temperature ?

[@senorjp21]

Sounds like you will need some kind of control system to measure temperature and adjust the power level. If you tell me some more details I might have more to suggest. Cheers