Study of solid hydrocarbon gasification in spherical bedding under high-temperature gas flow
K.Yu. Arefyev1,2,3, K.V. Fedotova1,2, L.S. Yanovsky1,4, M.A. Ilchenko1, and K.T. Niazbaev1,2
1Baranov Central Institute of Aviation Motors, Moscow, Russia
2Bauman Moscow State Technical University, Moscow, Russia
3Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, Russia
4Institute of Problems of Physical Chemistry, Chernogolovka, Moscow Region, Russia
E-mail: fedkv_89@mail.ru
Keywords: solid hydrocarbons, simulation, two-chamber low-temperature gas generator, LTGG, sublimation, azines
Pages: 917–928
Abstract
The paper presents a
mathematical model and calculation results for the process of gasification of
solid hydrocarbons (SHC) placed in form of spherical bedding inside channels
with variable cross section and washed with high-temperature gas. Parametric
study was performed for analysis of generator performance (mass flow rate and
gasification products) as function of different parameters: temperature and
composition of gas phase, thermophysical properties of SHC, sphere diameter in
the bedding, and channels configuration. The method for estimating the SHC
gasification process in a flow duct of low temperature gas generator (LTGG)
without loss of spheres shape (due to melting) was developed. The method offers
recommendations for obtaining the required level of mass flow rate and gas
temperature at the generator exit. These data can be used for analysis of
experimental results on SHC sublimation at the stage of preliminary
designing of the LTGG.
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