Experimental analysis of pressure drop and flow redistribution in axial flows in rod bundles



Título del documento: Experimental analysis of pressure drop and flow redistribution in axial flows in rod bundles
Revista: Journal of the Brazilian Society of Mechanical Sciences
Base de datos: PERIÓDICA
Número de sistema: 000312039
ISSN: 0100-7386
Autores: 1
2
Instituciones: 1Centro Tecnológico da Marinha em Sao Paulo, Sao Paulo. Brasil
2Universidade Federal Fluminense, Departamento de Engenharia Mecanica, Niteroi, Rio de Janeiro. Brasil
Año:
Volumen: 22
Número: 4
Paginación: 599-612
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico
Resumen en inglés Fuel elements of PWR type nuclear reactors consist of rod bundles, arranged in a square array, and held by spacer grids. The coolant flows, mainly, axially along the rods. Although such elements are laterally open, experiments are performed in closed type test sections, originating the appearance of subchannels with different geometries. In the present work, utilizing a test section of two bundles of 4x4 pins each, experiments were performed to determine the friction and the grid drag coefficients for the different subchannels and to observe the effect of the grids in the crossflow, in cases of inlet flow maldistribution
Disciplinas: Ingeniería,
Física y astronomía
Palabras clave: Ingeniería de energéticos,
Ingeniería química,
Termodinámica y física estadística,
Reactores nucleares,
Flujo,
Distribución,
Presión,
Fricción,
Mallas
Keyword: Engineering,
Physics and astronomy,
Chemical engineering,
Energy engineering,
Thermodynamics and statistical physics,
Nuclear reactors,
Flow,
Distribution,
Pressure,
Friction,
Grids
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