scholarly journals Cold Model Study on Melting of Ice Made by KCl Solution in Gas-Water Two-Phase Plume Area

2021 ◽  
Vol 290 ◽  
pp. 01023
Author(s):  
Tao Wang ◽  
Kanghua Pei ◽  
Jian Zhao ◽  
Zhao Li ◽  
Huan Wang ◽  
...  
Keyword(s):  
Bath Temperature ◽  
Melting Rate ◽  
Water Systems ◽  
Cold Model ◽  
Two Phase ◽  
Melt Temperature ◽  
Model Study ◽  
Plume Area ◽  
Ice Water ◽  
State 1

With the increasing of scrap usage in steelmaking processes, the melting of scrap becomes a very important phenomenon that limits the productivity and tap-to-tap time. Ice-water systems have been widely used to study the melting of scrap and alloys. In this study, the melting rate of saturated KCl solution ice spheres in gas-water two-phase plume zone are studied as a function of height of location, gas flowrate, and melt temperature. The results show that the shape of the ice sphere gradually changes firstly from spherical to elliptical, and finally becomes an irregular state. 1) The decreasing of the distance between the ice sphere and the bottom plugs, 2) the increasing of the gas flowrate, 3) the slightly increasing of bath temperature will all benefits the melting rate of ice spheres.

Immiscible Two-Phase Parallel Microflow and Its Applications in Fabricating Micro- and Nanomaterials

2021 ◽  
pp. 200-224
Author(s):  
Yujie Li ◽  
Jie Wang ◽  
Shijie Wang ◽  
Di Li ◽  
Shan Song ◽  
...  
Keyword(s):  
Driving Force ◽  
Water Systems ◽  
Liquid Interface ◽  
Parallel Flow ◽  
Two Phase ◽  
Friction Resistance ◽  
Interface Reactions ◽  
Oil Water ◽  
Proper Balance

The immiscible two-phase flow behaves nonlinearly, and it is a challenging task to control and stabilize the liquid-liquid interface. Parallel flow forms under a proper balance between the driving force, the friction resistance, and the interfacial tension. The liquid-solid interaction as well as the liquid-liquid interaction plays an important role in manipulating the liquid-liquid interface. With vacuum-driven flow, long and stable parallel flow is possible to be obtained in oil-water systems and can be used for fabricating micro- and nanomaterials. Ultra-small Cu nanoparticles of 4~10 nm were synthesized continuously through chemical reactions taking place on the interface. This makes it possible for in situ synthesis of conductive nanoink avoiding oxidation. Well-controlled interface reactions can also be used to produce ultra-long sub-micro Cu wires up to 10 mm at room temperature. This method provided new and simple additive fabrication methods for making integrated microfluidic devices.

scholarly journals Cold Model Study of a 1.5 MWth Circulating Turbulent Fluidized Bed Fuel Reactor in Chemical Looping Combustion

2020 ◽  
Vol 34 (7) ◽  
pp. 8575-8586
Author(s):  
Hu Chen ◽  
Zhenshan Li ◽  
Xinglei Liu ◽  
Weicheng Li ◽  
Ningsheng Cai ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Chemical Looping Combustion ◽  
Chemical Looping ◽  
Cold Model ◽  
Model Study ◽  
Turbulent Fluidized Bed ◽  
Fuel Reactor

scholarly journals 3D Integrated Modeling of Supersonic Coherent Jet Penetration and Decarburization in EAF Refining Process

Processes ◽  
2020 ◽  
Vol 8 (6) ◽  
pp. 700
Author(s):  
Yuchao Chen ◽  
Armin K. Silaen ◽  
Chenn Q. Zhou
Keyword(s):  
Liquid Steel ◽  
Flow Characteristics ◽  
Bath Temperature ◽  
Integrated Model ◽  
Refining Process ◽  
Computational Time ◽  
Reacting Flow ◽  
Two Phase ◽  
Decarburization Rate ◽  
Coherent Jet

The present study proposes a complete 3D integrated model to simulate the top-blown supersonic coherent jet decarburization in the electric arc furnace (EAF) refining process. The 3D integrated model avoids the direct simulation of the supersonic coherent jet interacting with the liquid steel bath and provides a feasible way to simulate the decarburization in the liquid steel-oxygen two-phase reacting flow system with acceptable computational time. The model can be used to dynamically predict the details of the molten bath, including 3D distribution of in-bath substances, flow characteristics and bath temperature and provide a basis for optimizing the decarburization rate or other required parameters during the refining process.

Research the Equilibrium Distribution of Puerarin in Aqueous Two-Phase Combine with Temperature-Induced Phase Separation EOPO/ K2HPO4 /Water Systems

2011 ◽  
Vol 138-139 ◽  
pp. 1162-1167
Author(s):  
Xue Mei Gu ◽  
Qing Huo ◽  
Qiang Lin
Keyword(s):  
Partition Coefficients ◽  
Equilibrium Distribution ◽  
Random Copolymer ◽  
Water Systems ◽  
Optimum Conditions ◽  
Two Phase ◽  
Modified Model ◽  
Aqueous Two Phase Systems ◽  
Phase Systems ◽  
Partition Behavior

The partition behavior of Puerarin in ethylene oxide-propylene oxide random copolymer (EOPO)/ K2HPO4/water systems was investigated .The optimum conditions were EOPO （SDP30） 28%, K2HPO424%, temperature-induced condition was 70°C and 30min. yield of Puerarin could reach 42.26%. Based on the modified model lnK/R2=A*+b*(w”-w’)+c*(w”-w’)2, partition coefficients of Puerarin in EOPO/K2HPO4aqueous two-phase systems were correlated. It was found that the correlation of the experimental data was quite satisfactory.

scholarly journals Liquid-liquid equilibrium of novel aqueous two-phase systems and evaluation of salting-out abilities of salts

2010 ◽  
Vol 8 (4) ◽  
pp. 886-891 ◽  
Author(s):  
Yun Wang ◽  
Jing Wang ◽  
Juan Han ◽  
Shiping Hu ◽  
Yongsheng Yan
Keyword(s):  
Water Systems ◽  
Organic Salt ◽  
Excluded Volume ◽  
Statistical Geometry ◽  
Liquid Equilibrium ◽  
Two Phase ◽  
Salting Out ◽  
Aqueous Two Phase Systems ◽  
Phase Systems ◽  
Aqueous Two Phase Extraction

AbstractBinodal data are beneficial to the design of aqueous two-phase extraction and the establishment of thermodynamic models. For the 2-propanol + Li2SO4/Na2SO4/ (NH4)2SO4/K3PO4 + water systems and 1-propanol + K3PO4/K3C6H5O7/(NH4)3C6H5O7 + water systems, binodal data were determined at 298.15 K. The binodal data were correlated by a theoretical equation on the basis of statistical geometry. The salting-out abilities of salts and the phase-separation abilities of alcohols were evaluated by the effective excluded volume of salt and the binodal curves plotted in molality. A simple Hofmeister series of cations and anions were obtained. The organic salt, K3C6H5O7, shows as high a salting-out ability as K3PO4.

Phase equilibria in extended simple point charge ice‐water systems

1995 ◽  
Vol 103 (22) ◽  
pp. 9744-9755 ◽  
Author(s):  
Luis A. Báez ◽  
Paulette Clancy
Keyword(s):  
Phase Equilibria ◽  
Point Charge ◽  
Water Systems ◽  
Simple Point ◽  
Ice Water
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