Briggs running on woodgas with the first rig

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This is the first good video of the briggs running on woodgas on the first rig. It ran great for about 4 hours but after letting it rest for 2 days, the intake valve was stuck open because of the excess tar buildup. That is what prompted me to add a cyclone separator and new filter to the unit. In some other videos, you will see the new flare and the collection canister of the cyclone.

Category:

Science & Technology

Tags:

• gengas
• woodgas
• wood
• gas
• gasification
• biomass
• gasifier
• briggs
• pellet
• green
• energy
• renewable
• project
• diy
• home

[jsmythib]

I just had the same thing happen to my intake valve and searched on youtube to see who else had the same problem :) Cyclone seperator you say? Thanks :)

[nebraska98]

@jsmythib Well, the cyclone will only remove particulates from the gas stream. I had to add a restrictive filter as well to make the gas tar free with this unit. That is why I abandoned the tarmaker and built a new gasifier. Check out my Minifier in my other vids. You really don't want to stay on the FEMA targas. It is also really wasteful as all that tar could have been cracked to become useful fuel.

[ils360]

what is wood gas

[nebraska98]

It is methane, hydrogen, carbon monoxide, and nitrogen with a little of this and that thrown in. What you can do with it is run boilers, stoves or engines.

[ucrash2]

you cool the gas before the engine, how do you control the ratio of air to gas?

very interesting, keep it up!

[nebraska98]

The air fuel ratio can be controlled by any valve system in a few different configurations. The one you see here is just two different ball valves to control it. In my minibike video, I used the stock carb butterfly to control the overall flow and a choke valve as in the FEMA design. Oh and the gas is being cooled with that radiator you see made from conduit.

[WorldStove]

sweeeeeeet little gasifier!

[BasementBen]

Oh wow! That is such a practical way to use woodgas!! :)

Good job, keep up the research.

Is that a type of downdraft sucking up the woodgas from the engine intake? I also noticed tar is a major contaminate.

Thanks,

Ben

[nebraska98]

It actually runs great at high speeds too. I have another viedo on here that shows a high speed run. The producer gas is kept up by a 3" firetube. It is a little oversized for this engine but the main reason for this whole rig is to eventually put a larger one on an old truck. This one is going to run a small generator.

[ChilesGreen]

Nice Design utilizing a common propane bottle.

It produces enough gas to sustained a high idle. How does it perform at various engine speeds?