Experimental study of a stoichiometric propylene–oxygen–argon mixture ignition behind a reflected shock wave

P. V. Kozlov; Козлов П. В.; M. A. Kotov; Котов М. А.; G. Ya. Gerasimov; Герасимов Г. Я.; V. Yu. Levashov; Левашов В. Ю.; N. G. Bykova; Быкова Н. Г.; I. E. Zabelinskii; Забелинский И. Е.

doi:10.31857/S0207401X24080056

Experimental study of a stoichiometric propylene–oxygen–argon mixture ignition behind a reflected shock wave

作者: Kozlov P.V.¹, Kotov M.A.¹^,2, Gerasimov G.Y.¹, Levashov V.Y.¹, Bykova N.G.¹, Zabelinskii I.E.¹
隶属关系:
1. Moscow State University
2. Ishlinsky Institute for Problems in Mechanics, Russian Academy of Sciences
期: 卷 43, 编号 8 (2024)
页面: 42-48
栏目: Combustion, explosion and shock waves
URL: https://cijournal.ru/0207-401X/article/view/681883
DOI: https://doi.org/10.31857/S0207401X24080056
ID: 681883

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A study on the self-ignition of a propylene–oxygen–argon stoichiometric mixture with a volumetric argon content of 95% was carried out. The experiments were performed on a shock tube, which is part of the “Shock Tube” experimental complex of the Institute of Mechanics of Moscow State University, in conditions behind the reflected shock wave. The time dependences of signals from a piezoelectric pressure sensor, a thermoelectric detector and an optical section configured to record the radiation of electronically excited radicals OH^• (l = 302 nm), CH^• (l = 427 nm, and molecular carbon C₂^• (l = 553 nm) were analyzed. The ignition delay times τ_ign were measured in the temperature range T = 1200–2460 K and pressures p = 4.5–25 atm. The data obtained are compared with the results of other authors.

关键词

propylene, argon, shock tube, ignition delay time, thermoelectric detector

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俄罗斯联邦, Moscow

参考

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2. Fig. 1. Shock tube diagram: D – diaphragm, P – pressure sensor, TD – thermoelectric detector, OS – optical section.

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3. Fig. 2. Spectral radiation density of the mixture, I, during its ignition at T = 1505 K and p = 5.9 atm.

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4. Fig. 3. Evolution of pressure P and radiation intensity of electronically excited radicals CH• (1), OH• (2) and molecules C2• (3) at T = 1868 K and p = 4.44 atm.

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5. Fig. 4. P, TD and OS readings indicating ignition of the mixture at T = 2457 K and p = 20.6 atm.

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6. Fig. 5. Ignition delay times in the stoichiometric C3H6/O2/Ar mixture measured in this work at p = 4.5–6.0 atm (1) and p = 12–25 atm (2), in comparison with the experimental data from [11], obtained at p = 4.5 atm (3), and from [20], obtained at p = 15 atm (4). Lines are approximation curves.

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