A high-precision method for calculating the pressure drop across wire mesh filters

Sun, Haiou; Bu, Shi; Luan, Yigang

doi:10.1016/j.ces.2015.01.023

Cited by 22 publications

(11 citation statements)

References 14 publications

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“…They described three models: (i) a three dimensional model that resolved the true geometry of the wire weaves (ii); a simplified three dimensional model with interwoven, orthogonal wires and (iii) a simplified two dimensional model using only horizontally placed wires. Using these three models, Sun et al (2015) found good agreement between experimental data and numerical predictions. They also found that the simplification of the mesh geometry had little effect on the pressure drop across the varying meshes while greatly reducing computational time.…”

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confidence: 66%

“…The most common method for characterizing the flow resistance for different types of mesh filters is to run experiments. Experiments in literature describe the general approach of a pump or compressor driving the working fluid (most commonly air or water) through a horizontal pipe or square tube, allowing the working fluid to flow through the mesh filter being characterized (Bussière et al 2017;Kołodziej et al 2009;Wu et al 2005;Zhu et al 2017;Sun et al 2015).…”

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confidence: 99%

“…Another approach for investigating flow phenomena in porous filters is the use of computational fluid dynamics (CFD), which can be faster and less expensive than experiments. Sun et al (2015) proposed a method for characterizing the pressure across wire filters. They described three models: (i) a three dimensional model that resolved the true geometry of the wire weaves (ii); a simplified three dimensional model with interwoven, orthogonal wires and (iii) a simplified two dimensional model using only horizontally placed wires.…”

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confidence: 99%

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A numerical approach for determining the resistance of fine mesh filters

Sherratt

DeGroot

Straatman

et al. 2019

Transactions of the Canadian Society for Mechanical Engineering

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Characterizing the resistance of mesh filters, in terms of pressure drop as a function of flow velocity, is an important part of modeling any filtration process. Most commonly, filters are characterized experimentally, which can be costly and time-consuming. This motivates a generalized numerical approach for characterizing the resistance of mesh filters based on the flow through a representative segment of a filter. There is uncertainty, however, in the correct specification of boundary conditions such that the numerical results for flow through the small segment match the overall behaviour of the filter. In this work, an experimentally validated numerical approach is developed by examining the velocity and turbulence intensity experienced across the filter. It has been shown that the flow resistance results are not sensitive to the turbulence intensity, but depend greatly on the imposed flow velocity. Specifying the peak velocity as the boundary condition in the filter simulations resulted in a good match with experiments, while using the bulk velocity did not reproduce the experimental results.

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confidence: 99%

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A numerical approach for determining the resistance of fine mesh filters

Sherratt

DeGroot

Straatman

et al. 2019

Transactions of the Canadian Society for Mechanical Engineering

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“…Conventionally, there are many types of separation methods to capture particles dispersed in liquid; for example, filtering (Lorenzen et al, 2014;Ong et al, 2014;Iritani et al, 2015;Sugiyama et al, 2015;Sun et al, 2015), sedimentation (Durst and Raszillier, 1989;Tambun et al, 2012;Zhang et al, 2015), centrifugation (Cao et al, 2014;Zhu and Liow, 2014;Teduka and Nishioka, 2015), and so forth: These separation methods have been extensively developed. Nevertheless, it is not possible to use filtering when there is no clear difference in the particle sizes.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of Aligned Micropillar Electrodes for Size-Selective Particle Capture by Dielectrophoresis: A Model of Dielectrophoresis Using Carbon Nanotube Electrodes

Sano

Tanemori

Tamon

2016

J. Chem. Eng. Japan / JCEJ

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A simpli ed electric eld calculation is used to reveal several unique characteristics of the dielectrophoretic force to capture particles using electrodes on which conductive aligned micropillars are placed. This electrode con guration is a model to investigate a previous report about dielectrophoretic particle capture using an electrode on which carbon nanotubes have been synthesized. Conventionally, it has been believed that dielectrophoresis tends to capture larger particles because the dielectrophoretic force increases with increasing particle size when ordinal electrodes are used. However, when an electrode con guration with aligned conductive micropillars is used, small particles with diameters that are comparable to those of the micropillars can be selectively captured by dielectrophoresis. Accordingly, the size of the particles that need to be collected can be controlled by choosing an appropriate micropillar diameter. For relatively large particles, micropillars with a larger diameter can generate a stronger dielectrophoretic force over a larger area, such that a larger amount of particles can be collected. The number density of the micropillars was shown to negatively a ect the dielectrophoretic force. The information obtained in this work will be useful for designing new DEP particle separators for size-selective particle capture. The use of controlled synthesis of CNTs is proposed to realize the fabrication of the electrode con guration modeled here.

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“…However, the single blow test result represented that the poor performance of the regenerator. Furthermore, Sun et al[82] tested two mesh regenerators, which have different layer spacing, to verify the numerical solutions. The experiment and numerical results showed a good agreement.…”

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confidence: 99%

Experimental and Numerical Study of the Stirling Engine Robust Foil Regenerator

Yanaga¹

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Experimental and Numerical Study of the Stirling Engine Robust Foil Regenerator Koji Yanaga Conventional electricity generation wastes more than two thirds of its thermal energy while generating electricity. Combined Heat and Power (CHP) systems are an efficient energy conversion technology, which generate electricity and useful thermal energy simultaneously by utilizing waste energy for space heating and sanitation. One system that is suitable for CHP is the Stirling engine. Because of the simple design, flexible heat source (solar, biomass, waste heat), high thermal to electricity conversion efficiency, and high reliability, the Stirling engine is expected to be one of the best candidates for the applications in the future. It was the biggest challenge in my life to come to the US and earn a Ph.D. degree at West Virginia University. The challenge would not have been overcome without all the support I received from my adviser, thesis committee members, friends, girlfriend, and my family. In the following paragraphs, I would like to show my appreciation to all the people who supported me. Firstly, I would like to give my utmost appreciation, and thanks to my academic advisor Dr. Songgang Qiu for all the support he gave me throughout my time at WVU. Without his advice and financial supports through my Ph.D. process, I would definitely not have earned my Ph.D. degree.

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A high-precision method for calculating the pressure drop across wire mesh filters

Cited by 22 publications

References 14 publications

A numerical approach for determining the resistance of fine mesh filters

A numerical approach for determining the resistance of fine mesh filters

Characteristics of Aligned Micropillar Electrodes for Size-Selective Particle Capture by Dielectrophoresis: A Model of Dielectrophoresis Using Carbon Nanotube Electrodes

Experimental and Numerical Study of the Stirling Engine Robust Foil Regenerator

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