Abstract
The paper presents experimental data on convective heat and mass transfer during sublimation of a single spherical particle of a mixture of organometallic compounds Zr(dpm)4/Y(dpm)3 in a high-temperature flow of an inert gas (He, Ar). The influence of the carrier gas velocity and composition on the characteristics of the mass transfer processes is considered. Data on dynamics of changes in the size and temperature of a sample during sublimation are obtained.
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Abbreviations
- U :
-
average flow rate, m/s
- Q :
-
volumetric flow rate, l/min
- T g :
-
flow temperature, °C
- T s :
-
sample temperature, °C
- d :
-
sample diameter, mm
- d 0 :
-
initial sample diameter, mm
- t :
-
time, s
- Re:
-
Reynolds number
- T melt :
-
melting temperature, °C, ΔsublH oT — sublimation heat, kJ/mole
- P :
-
saturation vapor pressure, Pa.
References
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The work on the creation of the experimental setup was supported by the program of fundamental scientific research of the Russian Academy of Sciences (AAAA-A17-117030310010-9). The studies of heat and mass transfer during sublimation of organometallic compounds were carried out with the financial support of the Russian Foundation for Basic Research within the framework of scientific project No. 18-38-00426.
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Bochkareva, E.M., Lukashov, V.V. & Miskiv, N.B. Features of convective sublimation in gas mixtures. Thermophys. Aeromech. 27, 839–846 (2020). https://doi.org/10.1134/S0869864320060050
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DOI: https://doi.org/10.1134/S0869864320060050