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100 _a20181023a2018 k y0engy50 ba
101 0 _aeng
102 _aNL
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aThe gel fuel ignition at local conductive heating
_fD. O. Glushkov, A. G. Nigay, O. S. Yashutina
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 42 tit.]
330 _aAn experimental study of ignition of a gel fuel at local conductive heating has been performed. The initial temperatures of the fuel samples were 120, 260, and 290?K. Metal particles in the shape of a sphere, a disk, and a parallelepiped with a characteristic size of 10?mm were used as ignition sources. The initial temperature of the heating sources varied in the range of 1050–1350?K. The use of software and hardware high-speed video recording (4200 frames per second at a maximum resolution of 1280?Ч?800 pixels) allowed analyzing the regularities of physical and chemical processes, occurring during the induction period. Limit conditions necessary for stable ignition of a gel fuel and dependences of ignition delay time on parameters of a local heating source have been established. A low-inertia (sampling rate of 100?Hz) measuring system based on miniature thermocouples and an oscilloscope served to establish the velocities of the gel fuel melting front motion from the contact boundary between the metal particle and the fuel in the direction of the thermal wave propagation during induction period and under stationary combustion. The mathematical model of ignition of the gel fuel has been developed within the framework of the mathematical apparatus of continuum mechanics and the theory of chemical kinetics. The results of numerical simulation are in good agreement with the experimental data obtained. The applicability limits of the developed model within which it reliably describes characteristics of ignition have been established. The mathematical model may be used to develop advanced energy-efficient technologies for ignition of new fuels in wide ranges of parameters of the system gel fuel/local heating source.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tInternational Journal of Heat and Mass Transfer
463 _tVol. 127, pt. C
_v[P. 1203-1214]
_d2018
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aгелевое топливо
610 1 _aнизкие температуры
610 1 _aгорячие частицы
610 1 _agel fuel
610 1 _alow temperature
610 1 _ahot particle
610 1 _amelting rate
610 1 _alnition delay time
700 1 _aGlushkov
_bD. O.
_cspecialist in the field of power engineering
_cAssociate Professor of Tomsk Polytechnic University, Candidate of physical and mathematical sciences
_f1988-
_gDmitry Olegovich
_2stltpush
_3(RuTPU)RU\TPU\pers\32471
701 1 _aNigay
_bA. G.
_cspecialist in the field of informatics and computer technology
_cengineer of Tomsk Polytechnic University
_f1992-
_gAleksandr Gerasimovich
_2stltpush
_3(RuTPU)RU\TPU\pers\37189
701 1 _aYashutina
_bO. S.
_cspecialist in the field of heat and power engineering
_cResearch Engineer of Tomsk Polytechnic University
_f1993-
_gOlga Sergeevna
_2stltpush
_3(RuTPU)RU\TPU\pers\44658
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИсследовательская школа физики высокоэнергетических процессов
_c(2017- )
_h8118
_2stltpush
_3(RuTPU)RU\TPU\col\23551
801 2 _aRU
_b63413507
_c20191002
_gRCR
856 4 _uhttps://doi.org/10.1016/j.ijheatmasstransfer.2018.08.103
942 _cCF