Modeling of Ascending/Descending Velocity of Metal Droplet Emulsified in Pb-Salt System

Song, Duk-Yong and Maruoka, Nobuhiro and Gupta, Govind Sharan and Shibata, Hiroyuki and Kitamura, Shin-Ya and Kamble, Smita (2012) Modeling of Ascending/Descending Velocity of Metal Droplet Emulsified in Pb-Salt System. In: METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 43 (4). pp. 973-983.

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Abstract

Metal-slag emulsion is an important process to enhance the reaction rate between the two phases; thus, it improves the heat and mass transfer of the process significantly. Various experimental studies have been carried out, and some system specific relations have been proposed by various investigators. A unified, theoretical study is lacking to model this complex phenomenon. Therefore, two simple models based on fundamental laws for metal droplet velocity (both ascending and descending) and bubble velocity, as well as its position at any instant of time, have been proposed. Analytical solutions have been obtained for the developed equations. Analytical solutions have been verified for the droplet velocity, traveling time, and size distribution in slag phase by performing high-temperature experiments in a Pb-salt system and comparing the obtained data with theory. The proposed model has also been verified with published experimental data for various liquid systems with a wide range of physical properties. A good agreement has been found between the analytical solution and the experimental and published data in all cases.

Item Type:	Journal Article
Publication:	METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
Publisher:	SPRINGER
Additional Information:	Copy right for this article belongs to the Minerals, Metals & Materials Society and ASM International 2012
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	21 Aug 2012 04:04
Last Modified:	21 Aug 2012 04:04
URI:	http://eprints.iisc.ac.in/id/eprint/44959

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