[Gasification] drawings for gasifier systems

[Paul S. Anderson]

Tom and all,

I usually agree with Tom Reed, but this time I must comment that his message
mixes statements appropriate for "gasifiers for IC engines" with statements
appropriate for "gasifiers for thermal output."

Tom's Campstove is for thermal, and his large unit is for electricity.  
He says
"Tars are the Achilles Heel of gasifiers. ......  If a gasifier manufacturer
claims that he can gasify a wide variety of fuels, run the other way."

Both are comments for the power producers, and are incorrect for the heat
producers.  Tars are not a problem if you burn them while hot, and not 
in an IC
engine.  And really we can burn many many different fuels in true 
gasifiers for
the heat production.  I expect to see more of this tar burning and diverse
fuels at the China conference this month about gasifiers for thermal
applications in cottage industries.  I will be showing a much improved version
of the thermal gasifier (updraft, not T-LUD) that I had at ETHOS last 
January. I will also take it to Stove Camp.  By September I hope to 
have enough written
description and pictures for people to make their own copies of my unit.

So, for the newcommers to gasifiers, just be sure that you reading the right
advice for the different types of gasifiers.

Paul
-- 
Paul S. Anderson, Ph.D., Geography professor - Emeritus
Telephone:  USA-309-452-7072 (residence and office)
Internet site:  www.ilstu.edu/~psanders
For my gasifier stoves info, go to:
http://bioenergylists.org/contributors#Paul_Anderson


Quoting Thomas Reed <tombreed at comcast.net>:

>> Dear John, Ruth and All Gasifier Gonnas;
>>
>> We are currently building a 15-20 kW gasifier for generating power and
>> heading toward an 80 kW minigrid system.  We thought both would be easy
>> with our long experience and knowledge of the WWII experience.  We have
>> a 3000 ft2 lab with metal working capabilities and make several runs a
>> week complete with computer recording and data analysis.
snip......
>> Tars are the Achilles Heel of gasifiers.  Our mantra is that the
>> gasifier can and should be operated to destroy most of the tars inside
>> the gasifier, rather than having to add on filters.
>>
>> There is a great variability in the chemical properties and
>> gasifiability of different biomass fuels.  If a gasifier manufacturer
>> claims that he can gasify a wide variety of fuels, run the other way.


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