Mathematical Simulation of the Crystallization Process in a Continuous Linear Crystallizer
| Autor: | V. A. Kashcheev, S. N. Veselov, E. A. Posenitskiy, T. V. Podymova, V. I. Volk |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Nuclear fuel Computer simulation 020209 energy General Engineering chemistry.chemical_element Thermodynamics 02 engineering and technology Uranium 010403 inorganic & nuclear chemistry Condensed Matter Physics 01 natural sciences 0104 chemical sciences law.invention chemistry.chemical_compound chemistry Uranyl nitrate Nitric acid law Scientific method 0202 electrical engineering electronic engineering information engineering Crystallization Dissolution |
| Zdroj: | Journal of Engineering Physics and Thermophysics. 90:140-150 |
| ISSN: | 1573-871X 1062-0125 |
| Popis: | A mathematical model of the crystallization of uranium in a continuous linear crystallizer, designed for the crystallization separation of desired products in the processing of an irradiated nuclear fuel, is proposed. This model defines the dynamics of growth/dissolution of uranyl nitrate hexahydrate crystals in a nitric acid solution of uranyl nitrate. Results of a numerical simulation of the indicated process, pointing to the existence of stationary conditions in the working space of the crystallizer, are presented. On the basis of these results, the characteristic time of establishment of the stationary regime at different parameters of the process was estimated. The mathematical model proposed was validated on the basis of a comparison of the results of calculations carried out within its framework with experimental data. |
| Databáze: | OpenAIRE |
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