RE: GAS-L: Re: [biofuel] Re wood gas emissions

["Gavin Gulliver-Goodall" <Gavin@roseplac.worldonline.co.uk>]

Yes you could use all your "normal" gas appliances on wood gas with
modification to the air mixture.
Th UK had Coal gas for a long time and when we changed over to "natural gas
(methane) they had to change all the burners.
The issues with woodgas are to do with making a clean gas and storage youo
should review the archives of this list.
Coal gas was made industrially for many years and the process is very
similar however the Coal gasification process would not now be economic due
to the high labour input and horrible emissions. Biomass could be gasified
in that manner but would not solve anybodies problems. The key on this list
is to do it small scale and/or automatically and basically we are gasifying
at point of use here.
Cheers
gavin

-----Original Message-----
From: Harmon Seaver [mailto:hseaver@cybershamanix.com]
Sent: Saturday, October 06, 2001 6:32
To: biofuel@yahoogroups.com
Cc: gasification@crest.org
Subject: Re: GAS-L: Re: [biofuel] Re wood gas emissions

Gavin Gulliver-Goodall wrote:

> Yes burning on stoves will be just as clean depending on the nozzle design
> to ensure optimum gas-air mixing.
> CV of woodgas varies according to fuel, gasifier etc but 4 Mj/kg seems a
> realistic number from memory Stoichiometric ration with air is about 1:1
> where as propane is 22:1
> Depending on temperature and exact conditions of combustion you may have
NOx
> or CO in the exhaust too.

      I'd think that more likely to occur with an open burner than in an
engine, especially if you had optimized the engine (advanced the spark at
least) for woodgas. I wonder how easy it would be to run all the regular
house
stuff (natural gas boiler, hotwater heater, cookstove) on wood gas? Seems
like
I used to have a book that had all that info, but can't remember if I gave
it
to someone or what, but anyway, at most it should just require opening up
the
gas jets a bit, maybe not even that, maybe just adjusting the air intakes on
the burners.


--
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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