[Gasification] [Stoves] Fuel Moisture and Stove Performance

[Thomas Reed]

Dear All:

WoodGas produced in WWII gasifiers is typically

H2 - 18%; CO-22%; CO2-4%; H2O-3%; CH4 - 3%; and N2 - 50%

The H2 greatly improves its flammability.  The energy content is ~ 150 
BTU/ft3 or 6 MJ/m3.

However, the flaming pyrolysis in the WoodGas stove produces a gas that 
is closer to

H2 - 31%; CO-27%; CO2-7%; H2O-5%; CH4 - 2%; and N2 - 25%.  The energy 
content is 210 BTU/ft3 or 8.4 MJ/m3.

(These figures come from experience and also from the thermodynamic 
calculations of Reed and DesRosiers in our Encyclopedia of Biomass 
Thermal Conversion.)

TOM REED                   BEF
------------------------------------------------------------------------

steve wrote:
> ----- Original Message -----
> From: AJH <list at sylva.icuklive.co.uk>
> To: Discussion of biomass cooking stoves
> <stoves at listserv.repp.org>
> Subject: Re: [Stoves] Fuel Moisture and Stove Performance
> Date: Sat, 28 Oct 2006 14:14:40 +0100
>
>   
>> On Fri, 27 Oct 2006 21:59:34 GMT, steve wrote:
>>
>>     
>>> Is wood gas largely CO ?
>>>       
>> Steve this depends on what you mean by wood gas. 
>>     
>
> That makes devising a suitable burner geometry a bit tricky
> then I think. Anyone who want a custom jet cutting for a
> trial could ask me, we can cut holes down to 100 u if
> needed. 
>
> Steve
>
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