Analysis of radionuclide retention in water pools

A Theoretical Model for Deposition of Aerosols in Rising Spherical Bubbles due to Diffusion, Convection, and Inertia

“…In recent years, -several computer programs, addressing aerosol transport in bubbles rising in liquid pools, have been developed (Owczarski et al, 1985;Wassel et al, 1985;Jonas and Schiitz, 1988;Ghiaasiaan et al, 1993;Calvo et al, 1991).…”

“…Fuchs (1964) modeled aerosol removal in spherical bubbles due to the combined effects of diffusion, inertia, and sedimentation, assuming that aerosol fluxes resulting from different mechanisms, each modeled separately, can be added together to find the total aerosol flux. Accordingly, for monodisperse aerosols in spherical bubbles (Fuchs, 19641, Fuchs's aforementioned method for modeling aerosol removal in bubbles has been widely applied in the past (Wassel et al, 1985;Heinscheid and Schiitz, 1988;Ghiaasiaan et al, 1993;Pich and Schiitz, 1991). Removal coefficients representing other mechanisms, including thermophoresis, diffusophoresis, and convection, have also been derived and included in Eq.…”

“…(1). For convection (Wassel et al, 1985;Ghiaasiaan et al, 19931, Fuchs's model for Brownian aerosol removal has been shown to be inadequate (Mills and Hosseyni, 1988;Ghiaasiaan and Yao, 1995). Aerosol removal due to two different mechanisms has been rigorously modeled for several simple configurations, generally indicating the significance of coupling among the removal mechanisms (Yu et al, 1977;Taulbee, 1978;Homsy et al, 1981;De la Mora and Rosner, 1981;Mills et al, 1984;Opiolka et al, 1994;Stratmann et al, 1994;Keh and Yu, 1995).…”

Estimation of the radioactive aerosols capture in accidental sequences of nuclear power plants

“…In addition, to set up a sound database on aerosol retention, deep insights into aerosol behavior have been gained and, as a result, semi-empiric models have been developed. Several specific codes for pool scrubbing were developed in the late 80s and early 90s, such are SPARC90 [Owczarski, 1991], BUSCA and SUPRA [Wassel, 1985]. All of them modeled gas injection under the "globule regime", so that gasliquid interactions under jet injection regime are missing.…”

“…Several specific codes for pool scrubbing were developed from the middle 80s until the early 90s, such are SPARC90 [Owczarski, 1991], BUSCA and SUPRA [Wassel, 1985]. All of them modeled gas injection under the "globule regime", so that gas-liquid interactions under jet injection regime are missing.…”