Heat transfer in packed beds: experimental evaluation of one-phase water flow



Título del documento: Heat transfer in packed beds: experimental evaluation of one-phase water flow
Revista: Brazilian journal of chemical engineering
Base de datos: PERIÓDICA
Número de sistema: 000308969
ISSN: 0104-6632
Autors: 1
2
Institucions: 1Universidade Estadual Paulista "Julio de Mesquita Filho", Departamento de Engenharia e Tecnologia de Alimentos, Sao Jose do Rio Preto, Sao Paulo. Brasil
2University of British Columbia, Department of Chemical and Biological Engineering, Vancouver, Columbia Británica. Canadá
Any:
Període: Ene
Volum: 21
Número: 1
Paginació: 13-22
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés Experimental heat transfer studies were carried out in 50.8 mm diameter packed beds of glass beads percolated by water and heated from the wall. The tube-to-particle diameter ratio (D/d p) ranged from 1.72 to 13.7 and the water flow rate from 1.1 to 9.9 l/min. Bed heights ranged from 100 mm to 700 mm. The radial temperature was measured above the bed surface by five aligned sheathed thermocouples. Variations in angular temperature were observed, independent of both radial position and particle diameter. Results of repeated tests with the same packing and with repacking did not differ statistically. The radial temperature profile at the bed entrance, measured by a ring-shaped sensor, was uniform except very close to the tube wall
Disciplines Química
Paraules clau: Ingeniería química,
Transferencia de calor,
Flujo de agua monofásico,
Temperatura radial,
Perfiles de temperatura,
Lechos empacados
Keyword: Chemistry,
Chemical engineering,
Heat transfer,
One-phase water flow,
Radial temperature,
Temperature profiles,
Packed bed
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