Numerical simulation of separation process for enhancing fine particle removal in tertiary sedimentation tank mounting adjustable baffle

2017 ◽  
Vol 158 ◽  
pp. 21-29 ◽  
Author(s):  
Hong Guo ◽  
Seo Jin Ki ◽  
Seungjae Oh ◽  
Young Mo Kim ◽  
Semyung Wang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Fine Particle ◽  
Separation Process ◽  
Particle Removal ◽  
Sedimentation Tank

Numerical simulation for the separation process of suspended fine sand from oil and water emulsion in a large-size sedimentation tank

2018 ◽  
Vol 115 ◽  
pp. 153-171
Author(s):  
Guoxi He ◽  
Siming Nie ◽  
Liying Sun ◽  
Dongliang Cao ◽  
Kexi Liao ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Fine Sand ◽  
Separation Process ◽  
Water Emulsion ◽  
Large Size ◽  
Sedimentation Tank

scholarly journals Numerical Simulation on the Fine Particle Formation Process in the Medialess Disperser

2005 ◽  
Vol 78 (8) ◽  
pp. 353-358
Author(s):  
Masakazu ENOMURA ◽  
Xiaofeng ZHANG ◽  
Michihisa TSUTAHARA ◽  
Kei TAKEBAYASHI ◽  
Masahiko ABE
Keyword(s):  
Numerical Simulation ◽  
Formation Process ◽  
Fine Particle ◽  
Particle Formation

Numerical Simulation of Powder Dispersion Performance by Different Mesh Types

2016 ◽  
Vol 680 ◽  
pp. 82-85
Author(s):  
Jian Cai ◽  
Lan Chen ◽  
Umezuruike Linus Opara
Keyword(s):  
Numerical Simulation ◽  
Flow Field ◽  
Fine Particle ◽  
Particle Deposition ◽  
Tetrahedral Mesh ◽  
Computational Time ◽  
Kinetic Characteristics ◽  
Powder Dispersion ◽  
Simulation Results ◽  
Time Accuracy

OBJECTIVE To investigate the influence of mesh type on numerical simulating the dispersion performance of micro-powders through a home-made tube. METHODS With the computational fluid dynamics (CFD) method, a powder dispersion tube was meshed in three different types, namely, tetrahedral, unstructured hexahedral and prismatic-tetrahedral hybrid meshes. The inner flow field and the kinetic characteristics of the particles were investigated. Results of the numerical simulation were compared with literature evidences. RESULTS The results showed that using tetrahedral mesh had the highest computational efficiency, while employing the unstructured hexahedral mesh obtained more accurate outlet velocity. The simulation results of the inner flow field and the kinetic characteristics of the particles were slightly different among the three mesh types. The calculated particle velocity using the tetrahedral mesh had the best correlation with the changing trend of the fine particle mass in the first 4 stages of the new generation impactor (NGI) (R2 = 0.91 and 0.89 for powder A and B, respectively). Conclusions Mesh type affected computational time, accuracy of simulation results and the prediction abilities of fine particle deposition.

Numerical Simulation of Flow in a Horizontal Sedimentation Tank

2011 ◽  
Vol 130-134 ◽  
pp. 3624-3627
Author(s):  
W.L. Wei ◽  
Zhang Pei ◽  
Y.L. Liu
Keyword(s):  
Numerical Simulation ◽  
Flow Field ◽  
Secondary Flow ◽  
Mixture Model ◽  
Turbulence Model ◽  
Two Phase ◽  
Sedimentation Tank ◽  
Phase Mixture ◽  
Good Agreement

In this paper, we use two-phase mixture model and the Realizable k-ε turbulence model to numerically simulate the advection secondary flow in a sedimentation tank. The PISO algorithm is used to decouple velocity and pressure. The comparisons between the measured and computed data are in good agreement, which indicates that the model can fully simulate the flow field in a sedimentation tank.

scholarly journals Study on fine particle removal from the surface of a microplasma electrode by electrostatic force

2020 ◽  
Vol 23 (2) ◽  
pp. 141-150
Author(s):  
Kazuo SHIMIZU ◽  
Daisuke NONAKA ◽  
Jaroslav KRISTOF ◽  
Marius BLAJAN
Keyword(s):  
Fine Particle ◽  
Electrostatic Force ◽  
Particle Removal

CFD simulation of fine particle removal in flue gas condensing heat exchanger

2020 ◽  
Vol 174 ◽  
pp. 115290 ◽  
Author(s):  
Kai Li ◽  
Enlu Wang ◽  
Qi Wang ◽  
Naveed Husnain ◽  
Deli Li
Keyword(s):  
Heat Exchanger ◽  
Flue Gas ◽  
Fine Particle ◽  
Cfd Simulation ◽  
Particle Removal ◽  
Condensing Heat Exchanger

scholarly journals FINE PARTICLE REMOVAL USING HYDROPHOBIC MICROPOROUS POLYMERIC MEMBRANES

2019 ◽  
Vol 81 (3) ◽  
Author(s):  
Anita Kusuma Wardani ◽  
Ivan Ivan ◽  
Ivan Ruben Darmawan ◽  
Khoiruddin Khoiruddin ◽  
I Gede Wenten
Keyword(s):  
Removal Efficiency ◽  
Fine Particle ◽  
Fine Particles ◽  
Low Cost ◽  
Polymeric Membrane ◽  
Particle Removal ◽  
Air Filtration ◽  
Air Filter ◽  
Aerodynamic Properties ◽  
The World

The air quality in the world has been worsening in the last decades due to industrial, vehicle, cigarettes smoke, forest fire, and fuel usage. In this case, fine particles are the world’s greatest concern due to its aerodynamic properties which enable it to travel throughout the world. The current conventional technologies seem to have lost their reliability due to complexity, low removal efficiency, and high equipment cost. Membrane air filter brings new hope to answer this challenge. It gives high removal efficiency with an acceptable pressure drop to fulfill the need for clean air at a lower price. Recently, the introduction of nanofibre membrane as a low-cost membrane may broaden membrane application in air filtration. Compared to conventional membrane, nanofibre membrane offers some interesting features such as higher porosity, interconnected pore structure, and narrow pore size distribution that provide remarkable permeability. In this paper, the microporous polymeric membrane for air filtration especially for fine particles removal is reviewed including mechanism of fine particle removal, membrane preparation, and factor affecting filtration performance.

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