International WoodGas Forum

Hi
I have built a gasifier from a 200 l barel but when I light it is vibrating a lot . Can you help me with some advice please, and also how big the fan to use ?
Thank you
Gabi

Hey Gabi
please posts some pictures of your gasifier.
i think it would be easier to say something about it.

regards Pascal

take shelter .... lol

gabi hat geschrieben: it is vibrating a lot .

Maybe it is frightened

Welcome Gabi
there could be a lot of reasons for that. I dont know which fan you use might this is the reason for your viration.
But I think it could be something much more dangerous ! If your gasifier is not seald it could be a lot of smal explosions. I had something similare and it is a really strange feeling. Please search for smal wholes!

it's most likely an air leak, which causes sucking in air at a resonance frequency of the gasifier. Clearly DON'T operate it until you have found the leak !!

Gabi,

Good you found the way to our forum. Be welcome. As you read in the answers most likely you have a leak. Either on welding seams either through the snapring around your lid. (If you are using such a lid seal).
If you have leaktested your barrel and you have no lidseal leak, so from those side everything seems ok then I can only think your gasifier is strangled say your gasifier is working on the starving limit or the gas has to fight itself through a big amount of charcoal dust. You can observe that by a flare that is burning inside the flaremouth making a virulent howeling noice and the tip of the flare is clear blue, has a point shape and pulses with a horrible frequency and speed.
I sometimes observed this phnomene if I stopped feeding fuel and let the gasifier burn out while still sucking on it.

Luk