Double-diffusive convection affected by conductive and insulating side walls during physical vapor transport of Hg₂Br₂
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In last few decades, although thermal and/or solutal buoyancy-driven recirculating flows in a closed ampoule have been intensively studies a s a model problem, t here exist interesting total molar f lux of Hg₂Br₂ that have been unreported in the literature. It is concluded that the total molar flux of Hg₂Br₂(A) increases linearly and directly as the temperature difference regions in the range of 10°C≤ΔT≤ 50°, 3.5×10³≤ Grt≤4.08×10³, 4.94×10⁴≤Grs≤6.87×10⁴. For the range of 10 Torr≤ PB≤ 150 Torr, the total molar flux of Hg₂Br₂(A) decays second order exponentially as the partial pressure of component B (argon as an impurity), PB increases. From the view point of energy transport, the fewer the partial pressure of component B (argon), PB is, the more the energy transport is achieved.
Abstract
In last few decades, although thermal and/or solutal buoyancy-driven recirculating flows in a closed ampoule have been intensively studies a s a model problem, t here exist interesting total molar f lux of Hg₂Br₂ that have been unreported in the literature. It is concluded that the total molar flux of Hg₂Br₂(A) increases linearly and directly as the temperature difference regions in the range of 10°C≤ΔT≤ 50°, 3.5×10³≤ Grt≤4.08×10³, 4.94×10⁴≤Grs≤6.87×10⁴. For the range of 10 Torr≤ PB≤ 150 Torr, the total molar flux of Hg₂Br₂(A) decays second order exponentially as the partial pressure of component B (argon as an impurity), PB increases. From the view point of energy transport, the fewer the partial pressure of component B (argon), PB is, the more the energy transport is achieved.
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