TY - JOUR
T1 - Modeling of ascending/descending velocity of metal droplet emulsified in Pb-salt system
AU - Song, Duk Yong
AU - Maruoka, Nobuhiro
AU - Gupta, Govind Sharan
AU - Shibata, Hiroyuki
AU - Kitamura, Shin Ya
AU - Kamble, Smita
N1 - Funding Information:
The authors would like to acknowledge gratefully the financial support provided by Nippon Steel Corporation, the Global COE Program of Materials Integration (International Center of Education and Research, Tohoku University), and Grant-in-Aid for challenging Exploratory Research (Grant 23656473), Japan Society for the Promotion of Science (JSPS). Govind S. Gupta thanks Tohoku University, Sendai, Japan for inviting him as a Visiting Professor.
PY - 2012/8
Y1 - 2012/8
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84865318556&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84865318556&partnerID=8YFLogxK
U2 - 10.1007/s11663-012-9642-6
DO - 10.1007/s11663-012-9642-6
M3 - Article
AN - SCOPUS:84865318556
SN - 1073-5615
VL - 43
SP - 973
EP - 983
JO - Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
JF - Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
IS - 4
ER -