INVESTIGADORES
MAZZA German Delfor
artículos
Título:
On the influence of Liquid Distribution on Heat Transfer Parameters in Trickle Bed Systems
Autor/es:
N. J. MARIANI; G. D. MAZZA; O. M. MARTÍNEZ; A. L. CUKIERMAN ; G. F. BARRETO
Revista:
THE CANADIAN JOURNAL OF CHEMICAL ENGINEERING
Editorial:
JOHN WILEY & SONS INC
Referencias:
Lugar: New York; Año: 2003 vol. 81 p. 814 - 819
ISSN:
0008-4034
Resumen:
The aim of this work is to analyse experimental results on radial heat transfer in a packed bed column with cocurrent downflow of liquid and gas, focused on the influence of radial liquid distribution and column to particle diameter ratio. For this purpose two kinds of measurements were carried out: radial liquid distribution and radial temperature profils. Heat transfer data is analysed with a model consisting of two regions: a lumped wall zone up to a distance of a particle radius from the tube wall, and a distributed core region covering the rest of the bed. Three parameters arose: the radial effective thermal conductivity of the core region (ker,c), the heat transfer coefficient between two zones(hl) and the heat transfer coefficient from the wall region to the tube wall (hw,w). Suitable correlations for the mentioned parameters as a function of gas and liquid Reynolds number and particle diameter were developed.
