[Stoves] Stove Definition - Char production

Ray Menke ray.menke at gmail.com
Sat May 4 19:40:41 CDT 2013


Crispin,
My char yield is much higher when I use Mesquite because it has a high
Lignin content.  Pine and cedar seem to make more ash.  (Referring to TLUD
use.)
Ray


On Sat, May 4, 2013 at 7:26 PM, Crispin Pemberton-Pigott <
crispinpigott at gmail.com> wrote:

> Dear Ron and All Char Retainers****
>
> Would any of you agree with the following method of determining, but the
> most direct possible mathematical route, the ‘char producing efficiency’ of
> an appliance as follows:****
>
> Fraction carbon in the char remaining divided by Fraction of carbon in the
> original dry fuel, expressed as a percentage****
>
> ** **
>
> This captures the original carbon % of the raw fuel on a dry basis, and
> the same value for the char remaining (on average of course).****
>
> Dividing one by the other gives the % of carbon that was in the original
> fuel retained in the char remaining.****
>
> Would you accept this as a realistic measure of the char production?  I
> will consider offering it to the Standards Committee to be included in the
> document. Maybe they will like it. It adds cost to testing but it might not
> be much.****
>
> It does not address the temperature at which it was processed, but that
> might be very difficult to assess without looking at the chemical structure
> for telltale signs.****
>
> Regards****
>
> Crispin****
>
> ** **
>
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-- 
Ray  Menke
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