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| Gasification Archive for October 2002 |
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| 28 messages, last added Tue Nov 26 17:18:30 2002 |
[Date Index][Thread Index]
> 10,000 gasifier types
Dear Paul and Aul:
When I was younger and I first started working on gasifiers at SERI/NREL, I
gave a talk to the Industrial Wood Energy Forum in 1982 on "Present Status
of Gasifiers in the U.S.". I claimed that there are a bewildering number of
gasifier types depending on the choices in the following 8 term matrix;
1. Fuel type (4): Wood, ag, densified, SMW
2. Fuel form: (2): Particulate, chunky
3. Fuel Feed: (2); Continuous Batch
4. Energy Source (4):
Partial combustion Air Oxygen
Pyrolysis slow Fast
5. Heat/Mass Contact (8)
Direct Suspension Fluidized
Downdraft Updraft
Indirect Liquids Solids Gases
Wall
6. Ash State (2) Molten Dry
7. Pressure (3) Suction low Positive
Elevated
8. Product mix (7) Gas Oil Char G/O G/C
O/C G/O/C
(Unfortunately there are no gasifiers in the "gas only" category).
Multiplying these options together we get 21, 504 types of gasifiers,
smaller than the 6 Million plus patents in the whole U.S. patent system, but
still allowing for a lot of creativity.
No doubt if I were doing it today I would get a different, probably larger,
number.
~~~~~~~~~~`
What to do in the face of so many possibilities?
I believe that the fundamental principles of gasification can be reduced to
a much smaller, (but still significant) number and that they would
automatically generate many of the above and eliminate a large number that
have low probability of working.
Unfortunately, no one funds research on the fundamental principles. I have
a number of seminal experiments in mind for when I get the time/money.
~~~~~~~~~
Lost of scope here for the inventors, none for the government labs.
Yours truly, TOM REED BEF
----- Original Message -----
From: "Paul S. Anderson" <psanders@ilstu.edu>
To: "Victor Hsu" <vjh201@stern.nyu.edu>; <stoves@crest.org>
Sent: Wednesday, October 23, 2002 9:24 AM
Subject: Re: GAS-L: Market for small scale gasifiers & open burning
regulations
> Victor,
>
> The discussion on "small scale gasifiers" has centered in the Stoves List
> Serve. If you are not subscribed there, I suggest that you do so.
>
> Much confusion on the meaning of "small scale". Mine are "tiny" or
> "micro". Gus Johansson's company in South Africa has a 6kwh unit that
sell
> for about US$14,000 complete with IC motor to run generator. And he has
> made others even smaller but focuses on 100 kwh and I think up to 300 kwh
> systems. He is elderly and not on any List Serve, but can be contacted
via
> me or via Tom Reed.
>
> Would you please define what is "small scale" and what you would actually
want.
>
> Paul
>
> At 11:15 PM 10/21/02 -0400, you wrote:
> >I have been very impressed with the dearth of knowledge on this listserv.
> >
> >I am curious if anyone knows what the market is like for small scale
> >gasifiers. The sort of markets that I would be looking at are smaller
scale
> >i.e., farms, municipalities...
> >
> >Also, does anyone have any information on which states have enacted open
> >burning regulations? In other words, regulations that forbid local
burning?
> >As far as I know, there are laws at the state level that forbid or
regulate
> >local burning, but no Federal laws.
> >
> >Thanks guys.
> >
> >-Victor Hsu
> >
> >
> >Gasification List Moderator:
> >Tom Reed, Biomass Energy Foundation, tombreed@attbi.com Biomass =
> >Energy Foundation, www.woodgas.com
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> >-
> >Gasification List Archives
> >http://www.crest.org/discussion/gasification/200202/
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> >http://crest.org/discussiongroups/resources/gasification/200kWCHP.html
> >Gasification Reference
> >http://www.crest.org/articles/static/1/1011975339_7.html
> >
> > >
>
> Paul S. Anderson, Ph.D., Fulbright Prof. to Mozambique 8/99 - 7/00
> Rotary University Teacher Grantee to Mozambique >10 mo of 2001-2003
> Dept of Geography - Geology (Box 4400), Illinois State University
> Normal, IL 61790-4400 Voice: 309-438-7360; FAX: 309-438-5310
> E-mail: psanders@ilstu.edu - Internet items: www.ilstu.edu/~psanders
>
>
> -
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> >
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>
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>
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-
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>
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http://www.crest.org/articles/static/1/1011975339_7.html Gasification
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