Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/4634
Title: Effects of equivalence ratio on species and soot concentrations in premixed n-heptane flames
Authors: İnal, Fikret
Senkan, Selim M.
Keywords: Flame research
Equivalence ratios
Atmospheric pressure
Benzene
Gas chromatography
Mass spectrometry
Publisher: Elsevier Ltd.
Source: İnal, F., and Senkan, S. M. (2002). Effects of equivalence ratio on species and soot concentrations in premixed n-heptane flames. Combustion and Flame, 131(1-2), 16-28. doi:10.1016/S0010-2180(02)00388-7
Abstract: The micro-structure of laminar premixed, atmospheric-pressure, fuel-rich flames of n-heptane/oxygen/argon has been studied at two equivalence ratios (C/O = 0.63 and C/O = 0.67). A heated quartz microprobe coupled to an online gas chromatography/mass spectrometry (HP 5890 Series II/HP 5972) has been used to establish the identities and absolute concentrations of stable major, minor, and trace species by the direct analysis of samples withdrawn from the flames. Benzene was the most abundant aromatic compound identified. The largest PAH detected were the family of C18H10 (molecular weight of 226) that include cyclopenta[cd]pyrene and benzo[ghi]fluoranthene, with peak concentrations reaching 8 ppm and 6 ppm, respectively. Soot particle diameters, number densities, and volume fractions were determined using classical light scattering and extinction measurements. The largest soot particle diameter measured was about 18 nm and the soot volume fraction reached the amount of 4.9 × 10-7.
URI: http://doi.org/10.1016/S0010-2180(02)00388-7
http://hdl.handle.net/11147/4634
ISSN: 0010-2180
0010-2180
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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