[Stoves] Broken Brick Mixed with Charcoal

[frank]

Dear Paul and others,

Paul S. Anderson wrote:

>Of course, I could be quite incorrect in this matter.  So I await confirmation
>or an alternative explanation.
>
>Paul
>
>  
>
I suggest it is the void space in the fuel that may be important because 
that is what determines the speed air squeezes through the fuel. Time to 
get hot, contact time, oxidation with increased surface area etc. Add 
large particles and increase void and the air travels slower around the 
particles.  Perhaps less (or more) channeling.  So much going on  I 
think it's a  'look and see'  problem. Void space, air flow  and carbon 
density is what I see as important.

Frank

-- 
Frank Shields
Soil Control Lab
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