[Stoves] Hydrogen from charcoal

[Paul Anderson]

Dear all,

Some instruments provide "derived measurements" based on from 
calculations from other truer, actual measurements.  Could this be the 
case of H2 amounts being derived from the CO measurements? If so (or 
only mostly so), that would explain the nearly perfect (>97%) 
correlation between the two lines on the graph.

What do we know about the instrument?    And specifically how is H2 
detected and quantified?

This is NOT my forte, so I am just raising the questions and am open to 
factual responses.

Paul

Doc  /  Dr TLUD  /  Prof. Paul S. Anderson, PhD
Email:  psanders at ilstu.edu
Skype: paultlud      Phone: +1-309-452-7072
Website:  www.drtlud.com

On 9/11/2013 7:17 AM, Crispin Pemberton-Pigott wrote:
>
> Dear Andrew
>
> Hydrogen is highly reactive in gaseous form and influences many 
> electrochemical cells. It is detected electrically, usually in the CO 
> cell. I agree with Harold that we should rule out some sort of 
> instrument error, but then the CO level is compensated for the H2 
> meaning they both should be working if the H2 is.
>
> It remains an interesting problem.
>
> Re the town gas, a major step in the production was to spray the hot 
> coal with water to fracture it creating CO and H2 in the process 
> (water gas) and when I first heard that I was amazed.
>
> What crazy guy thought of that??
>
> J
>
> Crispin
>
> >Charcoal stove, was operating, but "everything was cooled"??? Meaning
>
> >that there was no "serious" (as in glowing red) char in the stove, but
>
> >emissions were still coming off, correct?
>
> If this was the case then I would expect the char would still be 
> undergoing pyrolysis and the higher tar molecules splitting. As you 
> all know town gas was originally made by heating coal to drive off CO 
> and H2.
>
> That these molecules would survive the combustion is interesting but 
> could simply be the dilution by other combustion products putting the 
> air:fuel ratio out of range.
>
> How does a hydrogen cell sense the presence of hydrogen i.e. what 
> mechanism is involved in the measuring instrument?
>
> AJH
>
>
>
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