Heat transfer in packed beds: experimental evaluation of one-phase water flow
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Data
2004-01-01
Autores
Thoméo, J. C. [UNESP]
Grace, J. R.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Brazilian Society of Chemical Engineering
Resumo
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.
Descrição
Palavras-chave
heat transfer, one-phase water flow, radial temperature profile
Como citar
Brazilian Journal of Chemical Engineering. Brazilian Society of Chemical Engineering, v. 21, n. 1, p. 13-22, 2004.