2016
DOI: 10.1021/acs.energyfuels.6b02459
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Extended Adiabatic Flame Temperature Method for Lower Flammability Limits Prediction of Fuel-Air-Diluent Mixture by Nonstoichiometric Equation and Nitrogen Equivalent Coefficients

Abstract: The extended adiabatic flame temperature method aims at predicting the lower flammability limits of fuel-airdiluent mixtures (including fuel mixtures and diluent mixtures) by nonstoichiometric equation and nitrogen equivalent coefficients. A cubic function is introduced to describe the relation between the critical adiabatic flame temperature and inert volume concentration. This method applies to ten compounds including methane, propane, iso-octane, ethylene, acetylene, benzene, methanol, dimethyl ether, methy… Show more

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Cited by 16 publications
(8 citation statements)
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“…However, relevant differences can be found for very diluted mixtures, where the absence of ethane makes the flammable area narrower. The obtained CAFT for diluted mixtures are in agreement with the cubic function proposed by Li et al (2017) to correlate the CAFT and inert mole fraction, as discrepancies smaller than 5% are observed.…”
Section: Resultssupporting
confidence: 87%
See 1 more Smart Citation
“…However, relevant differences can be found for very diluted mixtures, where the absence of ethane makes the flammable area narrower. The obtained CAFT for diluted mixtures are in agreement with the cubic function proposed by Li et al (2017) to correlate the CAFT and inert mole fraction, as discrepancies smaller than 5% are observed.…”
Section: Resultssupporting
confidence: 87%
“…For these purposes, the functional dependency of the lower and upper flammability limits (FLs) and the minimum oxygen concentration with temperature is needed. Clearly, standard empirical models have been first tested (see Li et al, 2017 for a complete review). These methods are, however, validated only for ambient (or more elevated) temperatures and may be completely inadequate at lower temperatures, due to the expected strong non-ideality of the physical properties affected by the proximity of the vapour temperature to the boiling temperature.…”
Section: Introductionmentioning
confidence: 99%
“…The empirical coefficients and heat of formation classified in Table 5 can be retrieved from the relevant literature 36 :…”
Section: Theory Of Calculated Flame Temperature (Cft) Modelingmentioning
confidence: 99%
“…Among the others, critical adiabatic flame temperature (CAFT) [78] and limiting laminar burning velocity [45] theories are worth mentioning. The first alternative assumes that flammability limits can generate a given value of adiabatic flame temperature; i.e., thermal and kinetic aspects are balanced and able to self-sustain a flame [79]. However, although the threshold value should depend on the fuel composition and operative conditions, it is commonly considered within the range of 1200-1350 K [80], leaving a degree of freedom for the estimation of flammability limits.…”
Section: Flammability Limitsmentioning
confidence: 99%