Molina, Tomás (2023) Validación experimental de modelos numéricos con aplicación a reactores de sales fundidas / / Experimental validation of numerical models with application to molten salt reactors. Maestría en Ingeniería, Universidad Nacional de Cuyo, Instituto Balseiro.
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| PDF (Tesis) Español 13Mb |
Resumen en español
En esta tesis se implementó un modelo computacional basado en el método numérico de volúmenes finitos para simular el experimento de flujo de sal fundida en un canal rectangular realizado por el grupo Physique des Reacteurs Nucleaires en el Laboratoire de Physique Subatomique et Cosmologie. El experimento tiene como objetivo estudiar la transferencia de calor por radiación térmica en un flujo de la sal fundida FLiNaK. Para el desarrollo del modelo, primero se estudió el campo de velocidades en el circuito experimental realizando simulaciones numéricas y mediciones experimentales con la técnica PIV como validación del modelo. Con estos resultados se pudo confirmar la condición de desarrollo fluidodinámico en la zona de la sección de prueba en que se realizaron las mediciones de temperatura del experimento con sales fundidas. Luego, se desarrolló el modelo que simula la transferencia de calor en un canal rectangular, incorporando el mecanismo de transferencia de calor por radiación térmica. Se ajustaron los parámetros del modelo a los ensayos realizados en FLiNaK y se contrastaron los resultados con las mediciones obtenidas. El modelo fue capaz de reproducir parcialmente las mediciones experimentales.
Resumen en inglés
In this thesis, a computational model based on the finite volume numerical method was implemented to simulate the molten salt flow experiment in a rectangular channel performed by the Physique des R´eacteurs Nucl´eaires group at the Laboratoire de Physique Subatomique et Cosmologie. The experiment aims to study the heat transfer by thermal radiation in a flow of molten salt FLiNaK. For the development of the model, first the velocity field in the experimental circuit was studied by performing numerical simulations and experimental measurements with the PIV technique as validation of the model. With these results it was possible to confirm the fluid dynamic development condition in the area of the test section where the temperature measurements of the experiment with molten salts were performed. Then, the model that simulates heat transfer in a rectangular channel was developed, incorporating the mechanism of heat transfer by thermal radiation. The model parameters were adjusted to the tests performed in FLiNaK and the results were compared with the measurements obtained. The model was able to partially reproduce the experimental measurements.
| Tipo de objeto: | Tesis (Maestría en Ingeniería) |
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| Palabras Clave: | Fluid mechanics; Mecánica de fluidos; Thermal radiation; Radiación térmica; Molten salts; Sales fundidas; [ Numerical modeling; Modelado numérico] |
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| Materias: | Ingeniería mecánica > Termohidráulica |
| Divisiones: | Gcia. de área de Aplicaciones de la tecnología nuclear > Gcia. de Investigación aplicada > Materiales metálicos y nanoestructurados |
| Código ID: | 1191 |
| Depositado Por: | Tamara Cárcamo |
| Depositado En: | 14 Aug 2023 14:44 |
| Última Modificación: | 14 Aug 2023 14:44 |
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