[Stoves] re-kindling stoves

[ajheggie at gmail.com]

On Sunday 26 December 2010 01:00:07 Richard Stanley wrote:
> Aj,
>
> It looks like you have now come to the same conclusions of several
> hundred actual users !

Ah, I hadn't realised it was a loaded question, still it looks like 
conjecture meets practice.
>
> Really though for real analysis, Rok Oblak <www.rokstoves.org> 

My browser reports "server not found"


>
> I agree to that excess air can well quench the fire  but what is
> happening in the combustion of the hollow core Bq is a bit different..
> It is picking up  radiated heat from the  burning core (at its
> combustion chamber-end) and that has the effect of heating the incoming
> feed air supply. 

This radiative feedback is probably important, there were experiments with 
lots of different shaped holes by the early pyrotechnic rocket pioneers 
with this hole shape for solid propellants. It's not necessarily only the 
air that benefits.


> The combustion zone if untended, tends to creep back 
> out through the whole briquette. 

Which is what happens with a tlud stove if you think about it, the 
difference is the space between the end of the briquette and the 
pyrolysis front is kept oxygen free. The question is how uniformly does 
the fire creep back in a horizontal feed.

AJH