Re: Carbon Monoxide

In message <001801c6e35c$f744dea0$0201a8c0@default>, Ron Jones 
<ronjones-4yx4YNPSuoZDPfheJLI6IQ@xxxxxxxxxxxxxxxx> writes
>
>Sounds spot on advice to me.  Density is proportional to molecular weight
>for a gas
>Nitrogen = 28
>Oxygen = 32
>Air is therefore 4 parts N2 and 1 part O2 = approx 29 effective
>CO = 28
>CO2 = 44
>
>So CO tends to rise

CO is lethal at levels of around 100 ppm and unless one goes out of the 
way to do it efficiently, will be produced as a small admix in a larger 
volume of CO2 from coal burning. CO2 is denser than air. Gases don't 
spontaneously separate. If burning propane or butane, water vapour comes 
into the equation too.

All this is irrelevant however, as most leaks of hot gas to the boat 
will tend to be well mixed by convection currents and tend to rise.

>(and  warm air rises as well).

Dominant effect, unless one can find a source of cold flue gas. Not 
impossible, but less probable.

Wassail!
-- 
Martin E Phillips      http://www.g4cio.demon.co.uk
Homebrewing, black pudding, boats, morris dancing, ham radio and more!
The Gloucester-Sharpness canal web page http://www.glos-sharpness.org.uk


 
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