Shock-tube study of high-temperature ignition of propane-air mixtures at elevated pressures

Авторы: Tereza A.M., Kozlov P.V., Gerasimov G.Ya, Levashov V.Yu, Zabelinsky I.E., Bykova N.G.
Журнал: Acta Astronautica
Том: 204
Год издания: 2023
Издательство: Pergamon Press Ltd.
Местоположение издательства: United Kingdom
Первая страница: 705
Последняя страница: 710
DOI: 10.1016/j.actaastro.2022.11.001
Аннотация: Ignition delay time measurements in high- emperature propane-air mixtures have been performed behind reflected shock wave at temperatures T = 1043 ÷ 1778 K, pressures p = 17.7 ÷ 42.8 atm, and equivalence ratios φ = 0.5, 1.0, and 2.0. Simultaneously, the emission characteristics of the flammable mixture associated with the emission of electronically excited OH* radical were recorded. The available detailed kinetic mechanisms of propane ignition were used to describe the obtained experimental data. Sensitivity analyses of the propane-airmixtures with various equivalence ratios was carried out to single out the key reactions proceeded in these mixtures. The data obtained make it possible to specify the available information on the ignition of combustiblemixtures and thereby to improve the understanding of the processes occurring in the combustion chambers.
Добавил в систему: Герасимов Геннадий Яковлевич

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