Experimental and numerical investigation of kerosene flammability

Sochet, Isabelle; Pascaud, J. M.; Gillard, Philippe

doi:10.1051/jp4:20020312

Cited by 1 publication

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the continuity of previous work, , it is chosen to investigate the kerosene explosion in gas phase because the combustion initiation first appears in the gaseous reactive fluid. This assumption has been validated by comparing the data from the open literature.…”

Section: Introductionmentioning

confidence: 99%

“…This assumption has been validated by comparing the data from the open literature. Several experimental studies exist on combustion of kerosene vapor induced by liquid evaporation. , The gaseous explosions of light hydrocarbons from methane to propane generally present explosion pressure on the initial ratio of 6−9 depending on the conditions and fuel nature. − When considering a liquid phase in the tank, this ratio decreases slightly, for example from 7.18 to 7.1 with a liquid loading of 200 kg·m −3 . This diminishing trend is known and it is attributed to the heat sink that the liquid represents.…”

Section: Introductionmentioning

confidence: 99%

“…Indeed, when the ammunition impacts the metallic surface of the tank, it looses some energy. This can be computed by the Thor law. , But it is not possible to evaluate the number, the size, and the energy of the possible produced fragments, which may participate to a time-delayed multipoint ignition. Furthermore, the ammunition speed is highly supersonic.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Confined Kerosene Vapor Explosion: Severity Prediction Laws Based on Numerical Simulations.

Gascoin¹,

Gillard

2010

Energy Fuels

Self Cite

View full text Add to dashboard Cite

The vulnerability of aircraft, if attacked by conventional weapons, depends notably on the possibility to initiate and to propagate a combustion reaction in the multicompartmented kerosene tanks. After a review of the related mechanisms and existing studies, the numerical simulation tool MIRAGE (french acronym for gas flow adaptable and transient reactive modeling) is used extensively to investigate the effects of four parameters: the ignition energy (from 5 to 1000 J), the equivalence ratio in air (from 0.3 to 2.19), the tank pressure (from 1 to 1.8 bar absolute), and its volume (from 0.4 to 2 m 3 ). A detailed kinetic mechanism is considered (207 species, 1592 reactions) to properly represent the chemistry. The maximum pressure after explosion is found to depend mainly on the initial pressure and on the equivalence ratio, but not on the tank volume or the applied energy. A critical value of the energy, corresponding to the limit between ignition and no ignition, is shown depending on the equivalence ratio but also on the initial pressure of the tank. Thanks to these results of "numerical experiments", empirical laws are proposed to estimate the overpressure and its dynamic depending on the preceding four parameters. These laws are also applied to some test cases of the literature, with good agreement.

show abstract

Section: Introductionmentioning

confidence: 99%