4.7 Article

Simulation of cohesive particle motion in a sound-assisted fluidized bed

期刊

POWDER TECHNOLOGY
卷 207, 期 1-3, 页码 65-77

出版社

ELSEVIER
DOI: 10.1016/j.powtec.2010.10.011

关键词

Sound-assisted fluidized bed; Van der Waals force; Discrete element method; Particle processing; Numerical simulation

资金

  1. Natural Science Foundation of China [51076040, 50620120442]

向作者/读者索取更多资源

The effect of sound field on the cohesive particle motion in a 2-D sound-assisted fluidized bed is performed by means of discrete element method (DEM) in which the particle contact force, cohesive force, sound force and fluid force are considered. The distributions of concentration and velocity of cohesive particles is predicted in a sound-assisted fluidized bed. The effects of sound pressure level and sound frequency are studied. Computed granular temperature is increased with the increase of sound pressure level. The acoustic force increases, reaches maximum, and then decreases with the increase of sound frequency. A useful range of frequencies ranging between 100 and 120 Hz is found with a sound pressure level of 120 dB at which the effectiveness of the sound wave in improving fluidization of cohesive particles is most remarkable. (C) 2010 Elsevier B.V. All rights reserved.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

Article Engineering, Chemical

Cluster structure-dependent drag model for liquid-solid circulating fluidized bed

Guodong Liu, Peng Wang, Fan Yu, Yanan Zhang, Wentao Guo, Huilin Lu

ADVANCED POWDER TECHNOLOGY (2015)

Article Energy & Fuels

Multi-scale simulation of chemical looping combustion in dual circulating fluidized bed

Wang Shuai, Chen Juhui, Lu Huilin, Liu Guodong, Sun Liyan

APPLIED ENERGY (2015)

Article Energy & Fuels

Multi-scale heat transfer in fluidized bed reactors by Eulerian CFD modeling

Wang Shuai, Zhang Tianyu, Liu Guodong, Lu Huilin, Sun Liyan

Article Thermodynamics

Determination of Pressure Profile During Closed-Vessel Test Through Computational Fluid Dynamics Simulation

Ahmed Bougamra, Huilin Lu

JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS (2016)

Article Engineering, Chemical

Extension of cluster-structure dependent drag model to simulation of riser with Geldart B particles

Shuai Wang, Qi Wang, Juhui Chen, Guodong Liu, Huilin Lu, Liyan Sun

ADVANCED POWDER TECHNOLOGY (2016)

Article Engineering, Multidisciplinary

Simulations of dynamic properties of particles in horizontal rotating ellipsoidal drums

Dan Li, Lin Wang, Qiang Wang, Guodong Liu, Huilin Lu, Qinghong Zhang, Muhammad Hassan

APPLIED MATHEMATICAL MODELLING (2016)

Article Thermodynamics

Experimental and numerical studies of heat transfer and friction factor of therminol liquid phase heat transfer fluid in a ribbed tube

Weiguo Xu, Shuyan Wang, Qinghong Zhang, Qiang Wang, Huilin Lu, Heping Tan

APPLIED THERMAL ENGINEERING (2016)

Article Thermodynamics

Simulations and experiments of laminar heat transfer for Therminol heat transfer fluids in a rifled tube

Xu Weiguo, Ren Depeng, Ye Qing, Liu Guodong, Lu Huilin, Wang Shuai

APPLIED THERMAL ENGINEERING (2016)

Article Engineering, Chemical

Investigation of Aggregation Kernel and Simulation of Cohesive Particle Flow

Liyan Sun, Wenhao Yu, Muhammad Hassan, Shuai Wang, Guodong Liu, Huilin Lu

CHEMICAL ENGINEERING & TECHNOLOGY (2016)

Article Thermodynamics

Thermo-hydraulic performance of liquid phase heat transfer fluid (Therminol) in a ribbed tube

Xu Weiguo, Wang Shuyan, Lu Huang, Wang Qiang, Zhang Qinghong, Lu Huilin

EXPERIMENTAL THERMAL AND FLUID SCIENCE (2016)

Article Energy & Fuels

Assessment of CO2 capture using potassium-based sorbents in circulating fluidized bed reactor by multiscale modeling

Shuai Wang, Qi Wang, Juhui Chen, Guodong Liu, Huilin Lu, Liyan Sun

Article Engineering, Chemical

Numerical prediction of flow hydrodynamics of wet molecular sieve particles in a liquid-fluidized bed

Guodong Liu, Peng Wang, Huilin Lu, Fan Yu, Yanan Zhang, Shuai Wang, Liyan Sun

PARTICUOLOGY (2016)

Article Engineering, Chemical

Evaluation of a bubble-structure dependent drag model for the simulation of bubbling fluidization with Geldart A particles

Shuai Wang, Juhui Chen, Qi Wang, Guodong Liu, Huilin Lu, Liyan Sun

POWDER TECHNOLOGY (2016)

Article Engineering, Chemical

Numerical simulation of different flow regimes in a horizontal rotating ellipsoidal drum

Dan Li, Guodong Liu, Huilin Lu, Qinghong Zhang, Qi Wang, Hongbing Yu

POWDER TECHNOLOGY (2016)

Article Green & Sustainable Science & Technology

Thermo-hydraulic performance of Therminol liquid phase heat transfer fluid in a ribbed tube of solar heater

Weiguo Xu, Shuyan Wang, Lu Huang, Qiang Wang, Qinghong Zhang, Huilin Lu

RENEWABLE ENERGY (2017)

Article Engineering, Chemical

Modelling of annular flow and sand erosion in bends using a thin liquid film method

Ri Zhang, Shasha Zhang, Mengyan Ding

Summary: A thin liquid film method is proposed to evaluate sand erosion in annular flow. This method considers the direct interaction between the liquid film and gas core, as well as the entrainment and deposition of droplets. The erosion rate is calculated by considering the effects of liquid entrainment and particle velocity decay. The method is fully verified by comparing with experimental data.

POWDER TECHNOLOGY (2024)

Article Engineering, Chemical

Study on the mechanical properties of sandstone-shale composite continental shale gas based on the discrete element method

Yu Suo, Xianheng Su, Wenyuan He, Xiaofei Fu, Zhejun Pan

Summary: This research investigates the mechanical properties of sandstone-shale composite through orthogonal experimental method and discrete element simulation. The results show that different lithologies and thickness ratios can affect the strength and fracture mode of the composite rock samples.

POWDER TECHNOLOGY (2024)

Article Engineering, Chemical

Fluidized bed finishing of additively manufactured objects: The influence of operating parameters

Maurizio Troiano, Andrea El Hassanin, Roberto Solimene, Alessia Teresa Silvestri, Fabrizio Scala, Antonino Squillace, Piero Salatino

Summary: This study investigates the potential of Fluidized Bed Finishing (FBF) for square flat AlSi10Mg specimens manufactured via Laser-Powder Bed Fusion (L-PBF) additive manufacturing technology. The results show that good finishing can be achieved using rotation-assisted tests, with a maximum reduction of surface roughness by 67%. Steel particles are found to be the most effective bed material.

POWDER TECHNOLOGY (2024)

Review Engineering, Chemical

New insights on the role of seawater in sulfide ore flotation - A review

Ningbo Song, Wanzhong Yin, Jin Yao

Summary: Seawater's dissolved salts and minerals have various effects on the flotation process, including influencing the characteristics and behavior of flotation factors, as well as affecting the surface of sulfide minerals. In most cases, seawater has adverse effects on the flotation of sulfide minerals, but these effects can be mitigated by adjusting the reagents.

POWDER TECHNOLOGY (2024)

Article Engineering, Chemical

Bubble self-organization in pulsed annular gas-solid fluidized beds

Kaiqiao Wu, Shuxian Jiang, Victor Francia, Marc-Olivier Coppens

Summary: In rectangular and cylindrical annular fluidized beds, pulsating gas flow can create regular bubble patterns, overcoming challenges seen in conventional units. This study provides new opportunities for modularization of fluidized bed operations.

POWDER TECHNOLOGY (2024)

Article Engineering, Chemical

Vibro-fluidization of cohesive particles

Shuo Li, Huili Zhang, Jan Baeyens, Miao Yang, Zehao Li, Yimin Deng

Summary: The paper assesses the behavior of cohesive Geldart C-type particles when fluidized by air with the aid of vibration. It determines that mechanical vibration is a simple and effective method to improve the fluidity of cohesive particles during fluidization.

POWDER TECHNOLOGY (2024)

Article Engineering, Chemical

Hydrothermal, entropy generation and exergy performances analysis in a mini-channel with combination of longitudinal and transverse vortex generators using Al2O3 nanofluids

Zhenfei Feng, Qingyuan Zhang, Shanpan Liang, Zhenzhou Li, Fangwen Guo, Jinxin Zhang, Ding Yuan

Summary: A new micro/mini-channel heat sink (MCHS) with a combined structure of longitudinal and transverse vortex generators is designed, using Al2O3 nanofluid as the working medium. The study explores the effects of transverse vortex generator shape and longitudinal vortex generator angle on the hydraulic and thermal characteristics, comprehensive performance, entropy generation, and exergy efficiency. The results show that the triangular transverse vortex generator improves the comprehensive performance and exergy efficiency. Combined with the longitudinal vortex generator, the MCHS achieves the best comprehensive performance, entropy generation, and exergy efficiency when the Reynolds number is 742.

POWDER TECHNOLOGY (2024)

Article Engineering, Chemical

Predicting 3D particles shapes based on 2D images by using convolutional neural network

Kostas Giannis, Christoph Thon, Guoqing Yang, Arno Kwade, Carsten Schilde

Summary: This study presents a 3D convolutional neural network (3D-CNN) methodology for generating realistic 3D models of particles. The method trains on 2D projections of particle images to predict their 3D shapes, and evaluates the accuracy of the predictions using Fourier shape descriptors (FSDs). This methodology has wide applications in particle shape analysis.

POWDER TECHNOLOGY (2024)

Article Engineering, Chemical

Experimental study on oxidation and shell-breaking characteristics of individual aluminum particles at high temperature

Zheng-qing Zhou, Lu-jia Chai, Yu-long Zhang, Ya-bin Wang, Ze-chen Du, Tian-yi Wang, Yu-zhe Liu

Summary: The dynamic oxidation and shell-breaking processes of aluminum nanoparticles (ANPs) during heating were studied using in situ transmission electron microscopy. The results revealed that the changes in shell thickness can be divided into three stages, and the active aluminum content of ANP decreased before shell-breaking.

POWDER TECHNOLOGY (2024)

Article Engineering, Chemical

An improved breakage model with a fast-cutting method for simulating the breakage of polyhedral particles

Fulei Chen, Huaqing Ma, Zihan Liu, Lianyong Zhou, Yongzhi Zhao

Summary: A particle breakage model based on the particle replacement scheme, using the polyhedral model to describe particles, is proposed in this work to accurately describe the breakage of a large number of particles. Additionally, a fast-cutting algorithm is proposed to reproduce the size distribution of progeny particles determined by the breakage model. The validation and simulation results show satisfactory accuracy, efficiency, and stability of the algorithm.

POWDER TECHNOLOGY (2024)

Review Engineering, Chemical

Non-invasive and non-intrusive diagnostic techniques for gas-solid fluidized beds - A review

Matteo Errigo, Christopher Windows-Yule, Massimiliano Materazzi, Dominik Werner, Paola Lettieri

Summary: Gas-solid fluidized-bed systems have advantages in terms of chemical reaction efficiency and temperature control, making them widely used in industrial applications. However, the design, scale-up, and optimization of these complex units are limited by the lack of deep physical understanding. Non-invasive and non-intrusive diagnostic techniques provide a way for researchers to study these systems without affecting the flow field or directly contacting the medium under study.

POWDER TECHNOLOGY (2024)

Article Engineering, Chemical

Experimental investigation on the ferrofluid flow in a horizontal mini channel under the constant magnetic field using PIV

Saeed Fateh, Mohammad Behshad Shafii, Mohammad Najafi, Cyrus Aghanajafi

Summary: Applying a magnetic field to ferrofluids alters their flow characteristics and enhances heat transfer. Through visualization and quantitative investigation, it is found that the magnetic field influences the flow patterns and velocity profiles, improving fluid mixing and vorticity magnitude.

POWDER TECHNOLOGY (2024)

Article Engineering, Chemical

Influence of microscopic parameters on the macroscopic mechanical response of sand

Lei Gao, Bingbing Wei, Xiaochuan Hu, Zaifeng Yao, Yiwen Fang, Xuejian Gao

Summary: In this study, a numerical model of sand triaxial test was established using discrete element software PFC3D, and an indoor triaxial test was conducted to calibrate the numerical model. The influence of microscopic parameters on the macroscopic mechanical response of sand was analyzed. The results showed that the friction coefficient had the greatest impact on the peak strength and residual strength of the sand's stress-strain curve, and it was positively correlated. The normal tangential stiffness ratio was negatively correlated, while the porosity and boundary flexibility stiffness had minimal influence on it.

POWDER TECHNOLOGY (2024)

Article Engineering, Chemical

Fabrication and evaluation of novel amphiphilic star block copolymers for increasing free water content in lignite to make coal water slurries

Xuan Liu, Jie Gong, Kai Jiang, Xiaojuan Lai, Yu Tian, Kang Zhang

Summary: This study aimed to improve the performance of lignite coal water slurries (CWSs) by synthesizing a series of three-arm amphiphilic block copolymers. By controlling the relative molecular weight, hydrophilic/hydrophobic ratio, and ionic group content, the apparent viscosity of CWSs was significantly reduced and the static stability was improved. Thermogravimetric testing and XPS analysis were conducted to reveal the mechanism behind the improved performance.

POWDER TECHNOLOGY (2024)

Article Engineering, Chemical

Bubbles and bed expansion in low pressure fluidization

Lanka Dinushke Weerasiri, Daniel Fabijanic, Subrat Das

Summary: Fluidization at low pressure offers significant benefits for the fine chemical industry. This study investigates the behavior of bubbles and bed expansion under low pressure conditions. It is found that lower pressure leads to larger bubbles, increased bubble quantity, and higher aspect ratio. The predictability is affected by the inhomogeneous fluidization, but low pressure fluidization can generate similar bubble sizes with lower fluidizing mass compared to atmospheric pressure.

POWDER TECHNOLOGY (2024)