Effet des paramètres physiques et d’additifs sur l'allumage du n-décane par claquage laser non résonant

Abstract : Ignition by non-resonant laser breakdown of quiescent reactive mixtures was considered in this experimental study working with gaseous state. In this work, we mainly study the ignition of n-decane / air (C₁₀H₂₂+N₂+O₂) mixtures. This system is considered promising in different future strategies regarding ignitions systems for internal combustion engines. The breakdown is generated by focusing a high intensity laser beam for a few nanoseconds using Nd: YAG laser operating at 1064 nm, it is chosen as the laser source for all experiments conducted here. The experimental plan conducted allows to examine the effect of physical, optical, thermodynamic (pressure) and chemicals (additives: H₂O, Ar) on the characteristics of the laser ignition. This study implements a statistical approach on all the experimental cases taking into account all the measures during breakdown and combustion. This manuscript provides bibliographic basis for understanding combustion and laser breakdown phenomenology.
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Nabil Mokrani. Effet des paramètres physiques et d’additifs sur l'allumage du n-décane par claquage laser non résonant. Autre. Université d'Orléans, 2016. Français. ⟨NNT : 2016ORLE2062⟩. ⟨tel-01713092⟩

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