[Stoves] Biomass testing questions

[AJH]

On Fri, 16 Jan 2009 14:51:32 -0800, frank wrote:

>1) If I test the char for carbon and nitrogen can I assume the rest to 
>be hydrogen and that there is no oxygen left in the char?

No if there's still hydrogen with the char I'd expect the tarry bits
that this hydrogen is part of also to include oxygen at this low
pyrolysis temperature.

>3) Can we (should we) assume most all ash free biomass to have 6% 
>hydrogen?

On the basis that most biomass takes the approximate form C6H7O3
shouldn't that be 7.5%?


> So I can determine the amount of hydrogen in the volatile HO 
>fraction (subtract from that in the char) and then have both the Oxygen 
>and hydrogen values?  

You've lost me there, isn't water the only volatile component that
just consisted of H and O with no carbon involved?

AJH