RE: CO meters (again)

["Bruno M." <brunom1@yucom.be>]

hi stovers,
i don't have much recent experience with CO measuring,
but since there were so much postings about it,
and I just received there 2000 page catalog in my mailbox;
I like to give you this link (FWIW), they are a worldwide distributor
of lab and testing devices : Cole-Palmer,
See   http://www.coleparmer.com/index.asp
When you put "combustion analyzers" in there search window :
You'll get different types of hand held, portable and lab analyzers,
some of them with datalog function.
http://www.coleparmer.com/catalog/search_proc.asp?src=Combustion%20Analyzers&cat=1,14,15
You'll find specifications and prices, but I didn't find anything
about response times of there CO cells however :-(

And a small question to Brian, about the "suspending pot"
Don't you lose a little bit of heat transfer to the pot, if you like
also to measure the time to heat or boil a certain amount of water?
I mean : because you lose the heat transfer by <conduction> between the
(hot) ( metal) support and the pot.
If your test is only about CO and other flue gas specs it makes no 
difference off corse.

Kind regards

Bruno Meersman

==========================================
At 12:18 22/09/2002 -0700, TAMI BOND wrote:

>Crispin,
>
> > I do have the capability to weight the entire stove to 2 grams and we do
> > watch the fuel burn and the water temp rise. This is very good for the 
> short
> > time (3 or 4 mintes) until the water starts boiling and then it is a guess
> > thereafter because some of the loss is water and some is fuel.
>
>Bryan had lots of good ideas here (suspending pot etc). Another thing you
>need is a measure of flow rate through your hood-- I assume you have a
>hood collecting the exhaust. Since you are measuring the CO after the
>stove exhaust has entrained some air, the concentration is affected by how
>much dilution has occurred. To remove that effect, and to allow you to
>calculate total CO emitted, you have to measure either volume flow rate at
>the point of CO measurement, or CO2 at the point of measurement. (Another
>way to do it, which has been discussed on this list, is to dump the
>exhaust into a known volume. But this does not allow you to look at your
>transients very well.)
>...cut...
>Tami

-----------------------------------------------------
Reply's to BrunoM1@yucom.be


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