[Stoves] Lowering emissions

[frank]

Crispin and others,

One way I tried was to wet wood with water and coat with #30 sand. 
Worked somewhat. I calibrated with weight of sand per unit area. Powders 
did not work.
So I do not have a good method. I think it would be a useful measurement 
if someone can think of a good way to test it.  But think we can work 
around that with 1) particle size - void space ratio for ball or block 
shaped particles, 2) diameter of long particles (sticks) - void space 
ratio etc. The choice of the two methods to pick from could be based on 
an agreeable length to width ratio value. As you say it gets complicated! 

Frank






Crispin Pemberton-Pigott wrote:

>Dear Frank
>
>I have another question you might have some thoughts on.
>
>How can I measure the surface area of a selection of firewood, compared with 
>its volume?
>
>Your sand method will find the volume.  An important number is the ratio of 
>area to volume: M^2/M^3.
>
>Ideas anyone?
>Crispin 
>
>
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-- 
Frank Shields
Soil Control Lab
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