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Cold Model Study of Local Liquid Holdup in the Dropping Zone Using X-ray

Chemeca 2006: Knowledge and Innovation

Abstract: It is important to know and to quantify the liquid holdups both dynamic and static at local levels as it will lead to understand various blast furnace phenomena properly such as slag/metal.gas.solid reactions, gas flow behaviour and interfacial area between the gas/solid/liquid. In the present study, considering the importance of local liquid holdup and non-availability of holdup data in these systems, an attempt has been made to quantify the local holdups in the dropping and around raceway zones in a cold model study using a non-wetting packing for liquid. In order to quantify the liquid holdups at microscopic level, a previously developed technique, X-ray radiography, has been used. It is observed that the liquid flows in preferred paths or channels which carry droplets/rivulets. It has been found that local holdup in some regions of the packed bed is much higher than average at a particular flow rate and this can have important consequences for the correct modelling of such systems.

To cite this article: Gupta, Govind S and Naveen, K. Cold Model Study of Local Liquid Holdup in the Dropping Zone Using X-ray [online]. In: Chemeca 2006: Knowledge and Innovation. [Auckland, N.Z.]: Engineers Australia, 2006: [401]-[405]. Availability: <http://search.informit.com.au/documentSummary;dn=119425380597959;res=IELENG> ISBN: 0868691100. [cited 03 Dec 16].

Personal Author: Gupta, Govind S; Naveen, K; Source: In: Chemeca 2006: Knowledge and Innovation. [Auckland, N.Z.]: Engineers Australia, 2006: [401]-[405]. Document Type: Conference Paper, Research ISBN: 0868691100 Subject: Radiography; Blast furnaces; X-rays--Industrial applications; Peer Reviewed: Yes Affiliation: (1) Department of Metallurgy, Indian Institute of Science, Banglore, 560 012, India, email: govind@met.iisc.ernet.in
(2) Department of Metallurgy, Indian Institute of Science, Banglore, 560 012, India

Database: Engineering Collection