[Gasification] drawings for gasifier systems

[jim mason]

> I highly recommend the below three books.
>
> 1.      Handbook of Biomass Downdraft Gasifier Engine Systems
> 2.      Generator Gas
> 3.      Contaminant Testing Method for Gasifier Engine Systems
>
> >From http://www.woodgas.com
>

i have to third this.

for the last month, i've finally been reading the books from BEF.
what had long been opaque and vaguely understand by me, is now rather
clear, and more imporantly, begging for various imaginative/innovative
engagements.

gasification and its related processes are far more rich and widely
resonating of energy systems and processes than i realized.  what
actually lurks under this single name "gasification" is multitenacled
beast of related problems and processes, nearly all guaranteed to warm
the heart of gearheads and general pyros everywhere.  the related and
engageds of gasification are broad and deep. understanding
gasification plants one knee deep in the chemistry of life.
gasification is the sensual and sweaty technology of humans hacking
the carbon cycle of hte planet, with artificial organisms of metal and
grease.  any biomass in.  tweak this and that.  and nearly any
hydrocarbon fuel, chemical or product out.  i never realized organic
chem was so interesting.

i read the books in a little different order.  i started with the
thick "theory" one, the "encyclopedia/handbook of gasification,
pyrolysis and combustion".  it can be rather technical at times, but
non-specialists can plow through.  go slow and you will understand.
it lays the foundations of chemistry, thermodynamics and kinetics of
the processes, so that all the later tweakings here and there to solve
x or y problem, or design around z fuel, or go a different route and
optimize for direct liquid fuel production, all start to follow
logically from the nature of the processes.  the indexes of current
research circa 1979 and current businesses all follow closely from the
obvious problems and opportunities one discovers in the "theory".

it is 600 or so pages.  i went and holed up in the mts and read it
cover to cover in three days.  it may be stretching a bit, but i'll
call it a bit of a page turner . . .

then i went through the mobile gasification specific books in temporal
order.  they pretty much summarize the learnings at each of the main
flourishings of gasification: one post wwII (the gengas sweedish
experience with gasification), one post NREL work, and the current
"survey of gasification from 2001", updating the outcomes of the
"current" work in previous editions.  well actually, there are two
NREL gasification era books.  the "handbook of biomass downdraft
gasification systems" and the "state of the art for small scale
producer gas systems".  i've yet to read the second one.

i found it very rewarding to read them in this temporal order.  not
only does it give several passes through the same material, but you
see progress (and lack thereof, after much forgetting) in the later
ones.

now i need to get the tars and containment books.  as well as the
oxygen blown gasifier one, as i become quite interested in the various
schemes for getting rid of the diluting nitrogen typical in air blown
gasification. well, and the municipal solid waste gasification
schemes, as pelletized municipal waste is the most realistic larger
scale fuel where i am (an urban area).

unfortunately, i am not yet seeing good complete drawings of the rigs.
 it would seem that cad drawings of original imbert's and the current
"archived" sweedish designs in three sizes could and should be
available.  the books dont' really have completely drawings.  but they
do give good doc of criticial dimensions.  but much more is needed for
building.

so in short, i encourage all here to do what kevin told me to do about
two months ago,

"read the books".

it is highly rewarding, even more so than this list, if such is
possible . . . ;-)

j






> I recommend no plans! Because I feel that you need to understand the
> system and not just weld something together. A gasifier is worthless to an
> untrained operator.
>
>
> Jeff
>
>
>
> > I have been following the chat for some time and would now like to build a
> > unit from gasifier,cooler?,cleaner filter to motor.I would like to fit
> > unit to a2000cc petrol truck.Would the group be able to tell me where to
> > get drawings? Would like to use wood as I have plenty of gum trees and
> > would like to split and cut into short lengths.  Regards John Appleton
> > _______________________________________________
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> > http://www.repp.org/discussiongroups/resources/gasification
> >
> >
>
>
> --
> Jeff Davis
>
> Some where 20 miles south of Lake Erie, USA
>
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