Crispin and list

    1.  This looks like excellent new data.  Congratulations to SeTAR for 
putting this out.

    2.   Small correction on "H2 and CO is surprisingly constant".   At the 
beginning,  H2 is about 1/4 as high as CO, but towards the end is 2/3 as large 
(2% vs 3%).  Understanding the origin of such huge numbers may be helped by 
understanding why H2 relative growth is worse than CO.  Of course understanding 
why there is growth of both/either  is critical.

     I have no ideas on either topic.  But these numbers further justify not 
trying to consume char in a TLUD.

    3.  A recent article by Dean Still and others emphasized that charcoal 
using stoves perform better with a small starting fuel load.  If anyone at 
SeTAR is listening, I think this is a very important topic and the list would 
benefit a lot from hearing more on the test.

   4.  The label on the graph says 0% O2.  Are there tests with added O2?  
Results of that?

   5.  There are 3 or 4 vertical colored lines roughly 13 minutes apart.  The 
label might say "Pot".  What are these about?

   6.   You (Crispin) were talking recently about excess air computations 
involving CO.  I guess that the 2% H2 number is equally important in an energy 
sense as the 3% CO.  True?

   7.  Is this a typical run or exceptionally bad?   What is being done to 
improve these numbers?

Ron





On Sep 6, 2013, at 1:31 PM, Crispin Pemberton-Pigott <[email protected]> 
wrote:

> Dear Friends
>  
> This is a plot of CO(EF) and H2(EF) for a charcoal stove.
>  
> <image001.jpg>
> What do you suppose is the source this hydrogen?
>  
> Note for interest that the ratio between H2 and CO is surprisingly constant 
> throughout the test. It is not the ratio of the H and C in the fuel (at all).
>  
> Regards
> Crispin
>  
>  
>  
>  
>  
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