Gasifier Experimenters Kit - Pole Shift Survival Information

Woodgas truckParticipants in Workshop and FabricationJim Mason, Jessica Hobbs, Chicken John, Phil Glau, Alec Plauche, LesYoung, Bruce Arneson, Steve Nelson, Roger Carr, Eric L. Forsman,Kiko Almund, Dov Jelen, Caroline Miller, Chris Schardt, PatrickBuckley, Dann Davis, Darrel Licks,Notes on ConstructionWe decided to start with the most simple type of downdraft gasfier: thestratified downdraft, based on the Reed/LaFontaine design in the FEMA,Building a Simplified Downdraft Gasifier book.Our main variation on standard construction was to make the firetubeeasily replaceable. In fact, in the end our "gasifier" tank is really only agas cowling and ash catcher. Firetubes or any other gasifier hearth centerdesign can eaily slide into the center and bolt down. This easy changeout of the critical hearth/firetube section makes experimentation mucheasier, as well as adjustment of the gasifier size to match gas flow needs.Running all the "tubes within tubes" at the same time, down to thedesired smallest one for fire, also creates excellent insulation of theoperating firetube. We can restart the gasifier without a match after a fullnight of rest. The heat retention is exceptionally good with essentially athree or four wall tank.Here's what we used in construction.- a 25 gal propane tank, 14" in diameter, is the starting fire tube, with a50 gal vehicular propane tank making the external gas cowling.- inside this cowling, we can insert 12, 10, and 8 inch firetubes at themoment. more variations to come soon.- the cyclone is made from a 8" diameter welding bottle with hvacreducers press fit inside to establish the needed taper.- the radiator is 4" square tubing for tanks, with 3/4" emt conduit as thetubes, with the galvanizing removed in acid before welding.- the dry filter is a shop vac filter in a 5 gal bucket- the carburetor is a pipe T at the stock air cleaner inlet, with a butterflyvalve on the air side. the buterfly in the stock carburetor is the throttle,as usual. gas is shut off to the carburetor to change over to woodgas.both woodgas and air pass through the stock air filter.- plumbing is shop vac hose after the radiator. before the radiator is allsteel drain piping, hard welded.http://whatiamupto.com/gasification/woodgastruck.html (4 of 5) [10/9/2008 08:00:11]