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Re: Minimum Ignition Energy (mJ) of gases
Posted by:
dcarpenter (IP Logged)
Date: January 02, 2018 05:25PM
"Was there any variance in the concentration? If I were to have altered the concentration by .01% how much would that have changed the value, if any?"
There is variance in any calculated or measured value including fuel/air concentrations and ratios.
Using "numerical methods," one can potentially create a continuous function based on the discrete data and knowledge of how it trends mathematically. So, you can estimate the change in MIE with an incremental change in gas concentration.
I would suggest that this would be fundamental knowledge implicitly required under NFPA 1033.
Douglas J. Carpenter, MScFPE, CFEI, PE, FSFPE
Vice President & Principal Engineer
Combustion Science & Engineering, Inc.
8940 Old Annapolis Road, Suite L
Columbia, MD 21045
(410) 884-3266
(410) 884-3267 (fax)
www.csefire.com