Estimation of Flammability Limits of Selected Fluorocarbons with F(sub 2) and CIF(sub3) Page: 13 of 78
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During gaseous diffusion plant operations, conditions leading to the formation of flammable gas
mixtures may occasionally arise. Currently, these could consist of the evaporative coolant
CFC-114 and fluorinating agents such as F2 and CIF3. Replacement of CFC-114 with non-ozone-
depleting substitutes such as c-C4F and C4F0 is planned. Consequently, in the future, these too
must be considered potential "fuels" in flammable gas mixtures. Two questions of practical
interest arise: (1) can a particular mixture sustain and propagate a flame if ignited, and (2) what
is the maximum pressure that can be generated by the burning (and possibly exploding) gas
mixture, should ignite? Experimental data on these systems are limited. To assist in answering
these questions, a literature search for relevant data was conducted, and mathematical models
were developed to serve as tools for predicting potential detonation pressures and estimating
(based on empirical correlations between gas mixture thermodynamics and flammability for
known systems) the composition limits of flammability for these systems. The models described
and documented in this report are enhanced versions of similar models developed in 1992.
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Trowbridge, L.D. Estimation of Flammability Limits of Selected Fluorocarbons with F(sub 2) and CIF(sub3), report, September 1, 1999; Tennessee. (https://digital.library.unt.edu/ark:/67531/metadc623234/m1/13/: accessed May 20, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.