Flame Speciation and Laminar Burning Velocity of Tetralin Flames Under Atmospheric Pressure

Vladislav V. Matyushkov (), Anatoly A. Chernov, Mikhail V. Novikov, Ksenia N. Osipova, Tatyana A. Bolshova, Artëm M. Dmitriev, Denis A. Knyazkov and Andrey G. Shmakov
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Vladislav V. Matyushkov: Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, Novosibirsk 630090, Russia
Anatoly A. Chernov: Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, Novosibirsk 630090, Russia
Mikhail V. Novikov: Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, Novosibirsk 630090, Russia
Ksenia N. Osipova: Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, Novosibirsk 630090, Russia
Tatyana A. Bolshova: Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, Novosibirsk 630090, Russia
Artëm M. Dmitriev: Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, Novosibirsk 630090, Russia
Denis A. Knyazkov: Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, Novosibirsk 630090, Russia
Andrey G. Shmakov: Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, Novosibirsk 630090, Russia

Energies, 2025, vol. 18, issue 22, 1-25

Abstract: We present a combined experimental and modeling study of premixed atmospheric-pressure tetralin flames. Chemical speciation in near-stoichiometric (φ = 0.8–1.0) tetralin/O 2 /Ar flames was characterized by probe-sampling molecular-beam mass spectrometry (MBMS) with soft ionization (12.3–18 eV). Total ionization cross-sections (TICSs) for heavy intermediates were computed ab initio to enable quantitative MBMS processing. Laminar burning velocities (LBVs) of tetralin/air flames were measured in a range of equivalence ratios (φ = 0.75–1.5) on a nozzle burner via the stretch-corrected total area method. This is the first reported LBV data for tetralin/air flames (maximum LBV was 47.3 ± 2 cm/s at φ = 1.1). The experimental mole fraction profiles and LBVs were interpreted using three detailed mechanisms. None of the mechanisms were able to correctly describe the LBV profile, and a number of discrepancies were observed in the mole fraction profiles. Reaction network and sensitivity analyses were performed to identify specific sub-mechanisms requiring refinement. In particular, the subchemistry of naphthalene and indene strongly affects the accuracy of model predictions, whereas the flame speciation data indicate large uncertainties in the simulated concentrations of these species.

Keywords: tetralin; flame speed; chemical flame structure; molecular-beam mass-spectrometry; kinetic mechanism (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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