Effect of the n-butanol addition on cyclopentadienyl radical formation during benzene combustion

The PREMIX code in conjunction with Chemkin II and models resulting from the merging of validated kinetic schemes describing the oxidation of the components of the n -butanol-benzene mixtures were used to investigate the effect of n -butanol addition on the formation-depletion of cyclopehtadienyl radical (C 5 H 5 ), a soot precursor in the flames of mixtures of n -butanol-benzene formed under fuel-rich conditions. The first part of this study deals with the validation of the proposed combined model on benzene and n -butanol flames. The second part describes the dependence of the amount of cyclopentadienyl radical on the percentage of benzene replacement by oxygenate additive. The third part deals with the causes of the variation of mole fractions of this species with n -butanol. The principal objective of this work was to obtain fundamental understanding of the mechanisms through which an oxygenate affects amounts of C 5 H 5 . It was found that the cyclopentadienyl radical concentration was lower in the flame of the n -butanol-benzene fuel mixture than in the pure benzene flame.

• n-butanol
• benzene combustion
• cyclopentadienyl radical
• soot precursors
• oxygenate additives
• fuel-rich flames
• fuel blending

• Advanced Combustion Engine Technologies
• Combustion and flame dynamics
• Coal Combustion and Slurry Processing
• n-butanol
• benzene combustion
• cyclopentadienyl radical
• soot precursors
• oxygenate additives
• fuel-rich flames
• fuel blending
• Fluid Flow and Transfer Processes
• Computational Mechanics
• Mechanical Engineering
• Chemical Engineering
• Engineering