DIRECT CONTACT EVAPORATION OF A WATER DROPLET IN A MOLTEN-METAL POOL

Equipment ◽  
2006 ◽  
Author(s):  
Y. Saito ◽  
K. Mishima ◽  
M. Matsubayashi
Keyword(s):  
Molten Metal ◽  
Water Droplet ◽  
Direct Contact ◽  
Metal Pool ◽  
Molten Metal Pool

Minimization of Thermal Stresses in Continuously-Cast Ingot with Restriction on its Molten-Metal Pool Volume

1999 ◽  
Vol 30 (4-6) ◽  
pp. 296-302
Author(s):  
F. V. Nedopekin ◽  
Victor K. Tolstykh ◽  
N. A. Volodin ◽  
V. V. Belousov ◽  
S. V. Gridin
Keyword(s):  
Molten Metal ◽  
Thermal Stresses ◽  
Metal Pool ◽  
Cast Ingot ◽  
Continuously Cast ◽  
Molten Metal Pool

scholarly journals A Comprehensive Mathematical Model of Electroslag Remelting with Two Series-Connected Electrodes Based on Sequential Coupling Simulation Method

Metals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 658
Author(s):  
Wenjie Tong ◽  
Wanming Li ◽  
Ximin Zang ◽  
Huabing Li ◽  
Zhouhua Jiang ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Molten Metal ◽  
Skin Effect ◽  
Simulation Method ◽  
Melting Rate ◽  
Joule Heat ◽  
Electroslag Remelting ◽  
Metal Pool ◽  
Sequential Coupling ◽  
Molten Metal Pool

A comprehensive mathematical model of electroslag remelting with two series-connected electrodes (TSCE-ESR) was constructed based on sequential coupling method. The influence of droplet effect on electroslag remelting process (ESR) was considered in this model. Compared with one-electrode electroslag remelting (OE-ESR), the multi-physics field, droplet formation and dripping behavior, and molten metal pool structure of TSCE-ESR process were studied. The results show that during the process of TSCE-ESR, the proximity effect of the electrodes suppresses the skin effect, and Joule heat is concentrated in the area between the two electrodes of slag pool, making the temperature distribution of the slag pool more uniform. The heat used to melt the electrode in the process of TSCE-ESR accounts for about 34% of the total Joule heat, which is lower than the OE-ESR (17%). Therefore, it makes a higher melting rate and a smaller droplet size in the process of TSCE-ESR. Compared with OE-ESR, TSCE-ESR process can realize the unification of higher melting rate and shallow flat molten metal pool. Compared with the results without droplet effect, it is found that in the simulation results with droplet effect, the depth and the cylindrical section of molten metal pool increased, and the width of the mushy zone is significantly reduced, which is more consistent with the actual electroslag remelting process.

Numerical Simulation of Electroslag Remelting Process for Producing GH4169 under Different Current Frequency

2012 ◽  
Vol 482-484 ◽  
pp. 1556-1565 ◽  
Author(s):  
Qiang Liang ◽  
Xi Chun Chen ◽  
Hao Ren ◽  
Cheng Bin Shi ◽  
Han Jie Guo
Keyword(s):  
Molten Metal ◽  
Simulation Software ◽  
Electroslag Remelting ◽  
Metal Pool ◽  
Current Frequency ◽  
Volumetric Heating ◽  
Physical Fields ◽  
Physical Phenomena ◽  
Insight Into ◽  
Molten Metal Pool

A comprehensive analysis of the physical processes that occur in Electroslag Remelting (ESR) process under steady state conditions and axisymmetric was performed using the simulation software MeltFlow. The detailed plots of current distribution, volumetric heating, flow, temperature and turbulent mixing provide insight into the various physical phenomena that occur in ESR process. The effect of current frequency on various physical fields was analyzed. It is shown that, the current in the slag tends to become more uniform due to the low electrical conductivity of the slag; after the current enters the ingot, the skin effect increases with the increase of the current frequency; the Joule heating and the Lorentz force are highest near the tip of the electrode in the slag, and increase with the increase of the current frequency; the velocities in the slag are slightly higher than those in the molten metal pool; with the increase of the current frequency, the liquidus temperature moves down, and the molten metal pool is deepened. Simulation results agree well with experimental results. Therefore, the generation and extent of defects could be predicted in different process.

scholarly journals Effect Of Technological Parameters On Sizes Of Molten Metal Pool In Plasma-arc Surfacing Of Copper Plates Of Mccb Moulds

2015 ◽  
Vol 2015 (1) ◽  
pp. 21-25 ◽  
Author(s):  
V.G. Kozhemyakin ◽  
◽  
V.A. Shapovalov ◽  
V.R. Burnashev ◽  
D.V. Botvinko ◽  
...  
Keyword(s):  
Molten Metal ◽  
Metal Pool ◽  
Plasma Arc ◽  
Technological Parameters ◽  
Molten Metal Pool

scholarly journals Experimental research and numerical simulation of moving molten metal pool

2015 ◽  
Vol 1 (0) ◽  
pp. 15-00367-15-00367 ◽  
Author(s):  
Penghui CHAI ◽  
Nejdet ERKAN ◽  
Masahiro KONDO ◽  
Koji OKAMOTO ◽  
Hongyang WEI
Keyword(s):  
Numerical Simulation ◽  
Molten Metal ◽  
Experimental Research ◽  
Metal Pool ◽  
Molten Metal Pool

Molten metal and water direct contact interaction research – I. Photographic experiment study

2014 ◽  
Vol 70 ◽  
pp. 248-255 ◽  
Author(s):  
Yuan Zhou ◽  
Meng Lin ◽  
Mingjun Zhong ◽  
Xiao Yan ◽  
Yanhua Yang
Keyword(s):  
Molten Metal ◽  
Contact Interaction ◽  
Direct Contact ◽  
Experiment Study ◽  
Interaction Research

Molten metal and water direct contact interaction research – II. Numerical analysis

2014 ◽  
Vol 70 ◽  
pp. 256-265 ◽  
Author(s):  
Meng Lin ◽  
Yuan Zhou ◽  
Mingjun Zhong ◽  
Xiao Yan ◽  
Yanhua Yang
Keyword(s):  
Numerical Analysis ◽  
Molten Metal ◽  
Contact Interaction ◽  
Direct Contact ◽  
Interaction Research

scholarly journals Direct Contact Heat Exchange Interfacial Phenomena for Liquid Metal Reactors: Part I — Heat Transfer

2002 ◽  
Author(s):  
D. H. Cho ◽  
R. J. Page ◽  
D. Hurtault ◽  
S. Abdulla ◽  
X. Liu ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Heat Exchange ◽  
Molten Metal ◽  
Direct Contact ◽  
Water Flow Rate ◽  
Contact Heat ◽  
Saturated Water ◽  
Contact Heat Exchange ◽  
Initial Results ◽  
Steam Production

Experiments on direct-contact heat exchange between molten metal and water for steam production were conducted. These experiments involved the injection of water into molten lead-bismuth eutectic for heat transfer measurements in a 1-D geometry. Based on the initial results of the experiments, the effects of the water flow rate and the molten metal superheat (temperature difference between molten metal and saturated water) on the volumetric heat transfer coefficient were discussed.

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