GAS-L: gasifiers for logs

[Harmon Seaver <hseaver@cybershamanix.com>]

     I've been looking at some of the gasification archive stuff on
gasifiers for green wood and for logs, rather than chips, and started
thinking of building a gasifier out of a 55 gal drum, horizontally,
essentially like a common barrel stove, except that the door and draft
on the end would be at the top, and the flue opening would be on the
bottom, perhaps in the middle of the barrel.
    Maybe a bed of firebrick loosely laid over some sort of rack or
grate, so that the gas flow wouldn't be impeded, then a collector
chamber underneath out of a 5 gallon can maybe with some sort of ash
cleanout at the bottom (or maybe the whole thing just taken off
periodically) with the gas pipe outlet higher up on the pail -- then
just standard filter/cooler stuff after that.
      Has anyone tried such a design? I'm also wondering about wrapping
copper tubing for heating water around the firebox and gas outlet
--would that have any bad effect on the gasifier, cool it down too much?

--
Harmon Seaver, MLIS
CyberShamanix
Work 920-203-9633
Home 920-233-5820
hseaver@cybershamanix.com
http://www.cybershamanix.com/resume.html



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