Calculating Lower Explosive Limit (LEL) for Gas Mixture

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Calculating the lower explosive limit (LEL) for a gas mixture using the LELs of individual components is complex and not straightforward. While experimental determination of the mixture's LEL is the most reliable method, some suggest that analyzing the partial pressures of each gas in the mixture could provide insights into the air/fuel ratios. However, this approach may not accurately predict ignition potential due to the complexities of reaction kinetics. For more detailed guidance, consulting specialized literature, such as Section 2.3 of a referenced technical report, may be beneficial.
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Can the lower explosive limit (LEL) be calculated for a gas composition if you have each components LEL but not the mixtures LEL? Or does this need to be determined experementially?
 
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Good bloody question.

I don't know.

Easy answer would be to determine experimentally. I would imagine the difficult answer involves looking at the part pressures of each individual component gas in the mixture to give you an air/fuel ratio for each component, and assuming that the component with the lowest LEL will ignite the rest (though reaction kinetics being complicated as they are, I doubt this would be correct!).

I don't know. Perhaps asking a mod nicely to move this to the chemistry house would be more useful?
 
Section 2.3 of http://www.pnl.gov/main/publications/external/technical_reports/PNNL-13933Rev1.pdf" and references therein.
 
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