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Kiln Flue Gas Analysis


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#1 Mudlark

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Posted 25 November 2013 - 10:07 PM

Has anyone info., about modifying an auto exhaust gas analyser for use on gas fired pottery kilns?



#2 JBaymore

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Posted 25 November 2013 - 11:39 PM

There was an article years ago in Ceramics Technical, I think. Maybe it was CM .... but I don;t think so. Do some searching. It can be done.

 

best,

 

................john


John Baymore
Immediate Past President; Potters Council
Professor of Ceramics; New Hampshire Insitute of Art

http://www.JohnBaymore.com

#3 justanassembler

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Posted 26 November 2013 - 01:11 AM

http://members.optus...ust_sniffer.pdf

 

thats the article John was referring to.



#4 Frederik-W

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Posted 27 November 2013 - 06:12 AM

I built a system like that for a gas kiln,

but the results were not very good because the sensor was situated in the kiln flue and the flames made the readings fluctuate a lot.

Also the common (cheaper) variety of sensors are very non-linear - i.e. they are designed to go from hard-on to hard-off, and you do not get much in-between. So the accuracy of your readings suffer.

I still want to improve on this but I am too busy with other things at the moment.

The newer "wideband" type of sensors are accurate and give a more linear output put the electronics to build one is more complex and if you buy a ready-built one (for cars) they are quite expensive (for someone like me).



#5 Mudlark

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Posted 27 November 2013 - 04:56 PM

Thanks for your response I now have something to follow up on.




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