Gasifier Experimenters Kit - Pole Shift Survival Information

Quadrafierthe draft is working against gravity. but not yet a fluidized bed.tar seemed modest, but it was difficult to really tell, as much time was spentstarting and stopping and getting fuels packed in it, during which the coolrunning would produce tar. but once hot, things seemed ok, though i don't havehave a tar testing rig set up.we piped the gas into a 5kw genset, a typical 10hp briggs and stratten generactype. using a ball valve and some pipes, we made a wood gas "carburetor",retaining the original carburetor butterfly as the throttle. then we started theengine on gasoline. turned the gasoline off, fiddled with the air/woodgasmixture, and it continued to run just fine. we were all a bit stunned. soon wewere making sparks with the power out of the generator.V3.0: Crossdraft Gas-Can-i-FierThe crossdraft unit was built from a 5 gal jerry type metal gas can. the existingfuel bung was piped with 2" black pipe for the gas exit, using some stainlesssteel mesh for the grate. The air inlet is movable so the distance between airinlet and grate can be varied for different load conditions. plumbing reducercouplings on the end of the air inlet allow for easy changing of air inlet volumes.I did not allow myself to use the welder for this version. The only power toolused in the making was a drill and an angle grinder with a cut off wheel to makethe fuel loading hopper. The fuel hopper doesn't even have a hinge other thanbending the metal back to fill it. It doesn't get much easier that this. Build time:4 hours.We are running wood pellets in the pictures below. The first run melted thesealtite electrical flex conduit i was testing, so i went back to the flexibleexhaust pipe and aluminum tape.The sealed hopper proved to be much more sensitive to fuel moisture thaneither the open hopper stratified downdraft, or the updraft. On the first real run,it started strong, but was quickly overwhelmed by steam from the drying fuelinside the gasifier. Seeing the increased sensitivity to fuel moisture with thesealed hopper design was rather interesting. The argument for an open hopperor monorator type design clear.http://whatiamupto.com/gasification/quadrafier/index.html (4 of 6) [10/9/2008 08:00:07]