Dynamic ignition regime of condensed system by radiate heat flux; Journal of Physics: Conference Series; Vol. 830 : Energy Fluxes and Radiation Effects 2016

Dynamic ignition regime of condensed system by radiate heat flux

Bibliografiska uppgifter
Parent link:	Journal of Physics: Conference Series Vol. 830 : Energy Fluxes and Radiation Effects 2016.— 2017.— [012136, 9 p.]
Institutionell upphovsman:	Национальный исследовательский Томский политехнический университет (ТПУ) Энергетический институт (ЭНИН) Кафедра атомных и тепловых электростанций (АТЭС)
Övriga upphovsmän:	Arkhipov V. A., Zolotorev N. N., Korotkikh A. G. Aleksandr Gennadievich, Kuznetsov V. T.
Sammanfattning:	Title screen The main ignition characteristics of high-energy materials are the ignition time and critical heat flux allowing evaluation of the critical conditions for ignition, fire and explosive safety for the test solid propellants. The ignition process is typically studied in stationary conditions of heat input at constant temperature of the heating surface, environment or the radiate heat flux on the sample surface. In real conditions, ignition is usually effected at variable time-dependent values of the heat flux. In this case, the heated layer is formed on the sample surface in dynamic conditions and significantly depends on the heat flux change, i.e. increasing or decreasing falling heat flux in the reaction period of the propellant sample. This paper presents a method for measuring the ignition characteristics of a high-energy material sample in initiation of the dynamic radiant heat flux, which includes the measurement of the ignition time when exposed to a sample time varying radiant heat flux given intensity. In case of pyroxyline containing 1 wt. % of soot, it is shown that the ignition times are reduced by 20–50 % depending on the initial value of the radiant flux density in initiation by increasing or decreasing radiant heat flux compared with the stationary conditions of heat supply in the same ambient conditions.
Språk:	engelska
Publicerad:	2017
Serie:	Radiation physics and chemistry of condensed matter
Ämnen:	электронный ресурс труды учёных ТПУ динамический режим конденсированные системы радиационные потоки тепловые потоки воспламенение высокоэнергетические материалы пропелленты лучистый поток
Länkar:	http://dx.doi.org/10.1088/1742-6596/830/1/012136 http://earchive.tpu.ru/handle/11683/39508
Materialtyp:	Elektronisk Bokavsnitt
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=654953

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