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- W2094408042 abstract "A study of the different mechanisms which govern the evolution of particulate pollution in the atmosphere of a gallery of a uranium mine (deposition on the walls, coagulation) is presented. As a first step, the numerical coefficients which characterize the aerosol are determined from the air flow and the surface state of the walls. From these results a theoretical model is constructed and applied to a simplified type of mine gallery, a cylindrical duct with turbulent air flow. The results obtained with this model are compared with experimental values. In the second step, these results help to forecast the evolution of particulate pollution for different conditions of the mining environment. This work gives some ideas for research on methods of decreasing the particle concentration and the radioactive aerosol in the air of a uranium mine. Nous proposons uneétude des différents mécanismes qui régissent l'évolution de la pollution particulaire dans l'atmosphère d'une galerie de mine d'uranium (déposition sur les parois, coagulation). Dans un premier temps sont déterminés les coefficients numériques caractéristiques de l'aérosol, de l'écoulement de l'air et de l'état de surface des parois. A partir de ces résultats un modèle théorique est réaliséet appliquéàune galerie de mine schématisée sous forme d'un cylindreàl'intérieur duquel règne unécoulement d'air turbulent. Les résultats obtenusàl'aide de ce modèle sont comparésàceux obtenus expérimentalementàl'intérieur de la mine. Ils sont utilisés pour prévoir l'évolution de la pollution particulaire en fonction des caractéristiques du milieu minier. Ce travail donne deséléments pour la recherche de solutions qui permettraient de diminuer les concentrations en particules radioactives dans l'air des galeries de mine d'uranium." @default.
- W2094408042 created "2016-06-24" @default.
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- W2094408042 date "1976-01-01" @default.
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- W2094408042 title "Etude de l'evolution de la pollution particulaire dans l'atmosphere confinee d'une mine d'uranium" @default.
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- W2094408042 doi "https://doi.org/10.1016/0021-8502(76)90010-0" @default.
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