Ive read some of your other post and seen some of your excellent work. Im jelouse!!
You do some awsome work and I have much to learn from you.
As for filters Ive played around with different filter medias and just did not have much luck. Either the tars got thru any ways or it was too restrictive. Ive built a bulbler/media filter combo that worked OK but the bubbler was to restrictive. So I went back to tuning the gassifier until it made clean gas with out any filters.This took lots of pacients and days of tweaking.
Wood pellets I think is the way to go with the small gassers. Once I was able to get consitant fuel flow going thru the gasser, I could then establish the best possible perameters that the unit would produce good gas. Its not 100% as conditions change all the time in the gasser but it does recover.
I am open to ideas for additional filtration. My question is do you really need to filter the tars or can they be condensed?? To me (and Im still learning here) it seems when the tars come out they are in a gas form just like the moisture. Does the tar just need a lower temp than the moister to be condensed out?
Also I do have a simple cyclone/water trap, That I have just before the ICE that I mix the air fuel in. The idea there is to introduce cold air to further condense the gas and get out any remaining tars and moister. What Im now considering is a finnal filter that will use the activated char that comes out of the gassifier as a finnal filter and have this after that.
Thanks for the kind words I look forward to your respnce.
Im still working on getting wood chips and chunks to work and I do think I will get there. I have not been able to test the new design yet with these fuel medias. I think with the new design and the addition of a hopper shaker it will work though.