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颗粒学报（英文版）
颗粒学报（英文版）

郭慕孙

双月刊

1674-2001

jcsp@home.ipe.ac.cn

010-82629146

100080

北京中关村北二条1号中科院过程所内

颗粒学报（英文版）/Journal China ParticuologyCSCDCSTPCD北大核心EISCI
查看更多>>本刊以创精品与国际化为办刊方针，旨在反映中国颗粒学研究的最新成果、及时追踪国际颗粒学领域的最新动态。学报主要刊登国内外颗粒学领域中的研究、工程和应用方面的优秀原始论文，包括颗粒测试与表征、颗粒制备与处理、流态化、气溶胶和超微颗粒等。本刊不仅设有论坛、研究论文、研究简报等内容，还有书评、会议信息与报道、测试仪器进展等栏目，便于相关人士进行学术交流，并为科技成果的展示提供平台，信息十分丰富。本刊已陆续被美国化学文摘（CA），俄罗斯文摘杂志（AJ），剑桥科学文摘（CSA）以及中国科技论文与引文数据库(CSTPCD)收录。China PARTICUOLOGY, a bimonthly interdisciplinary journal in English, purports to present the best papers in research, engineering and application in the overall field of PARTICUOLOGY, including particle characterization, particle preparation, aerosol, fluidization and ultra-fine particles. The word PARTICUOLOGY was coined to correspond to its Chinese terminology, which denotes both the science and technology of particles. Although the journal is China-based, it serves as a medium for all accepted papers of international origin, especially the best papers representing current advances in the world. Besides scientific and engineering papers, the journal includes the following sections: R & D notes, Current events, Editorials reviews, Forum for comments, opinions and qualified speculations, News on books, instruments and meetings.Now， China Particuology has been indexed by CA, AJ , CSA and CSTPCD.??读者对象（Audiences）： 中国颗粒学会会员、国内外从事颗粒学和颗粒技术研究和生产的大专院校师生、科研院所及企业的研究人员和技术人员。 Member of Chinese Society of Particuology, and researchers or experts who are engaged in the study of particle sciences and technology coming from colleges, institutes and corporations all over the world.
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    New approach for particle size and shape analysis of iron-based oxygen carriers at multiple oxidation states

    Victor PurnomoMarcelo Dal Belo TakeharaRobin FaustLidiya Abdisa Ejjeta...
    493-503页
    查看更多>>摘要：One of the crucial issues in the chemical looping technology lies in its bed material:the oxygen carrier.Particle size analysis of an oxygen carrier is important since in a fluidized bed the material can only work well within a specific size range.While the favorable size ranges for oxygen carrier materials have already been reported,none of the published studies has analyzed the particle size and shape of oxygen carriers in detail.Furthermore,the effect of oxygen carriers'oxidation degree on such properties has not been considered either.This study aimed to report the particle size and shape analysis of five iron-based oxygen carriers,one natural ore,one synthetic material,and three residue products,at different oxidation degrees using dynamic image analysis(DIA).The oxygen carriers were prepared at different mass conversion degrees in a fluidized bed batch reactor.The size distribution,sphericity,and aspect ratio of the oxygen carrier particles were examined experimentally using a Camsizer instrument.Our results show that the DIA method was successfully able to analyze the particle size and shape of our oxygen carriers with satisfying accuracy for comparison.The oxidation state of the investigated materials seems to only affect the particle size and shape of oxygen carriers to a minor extent.However,exposures to redox cycles in a fluidized bed reactor may alter the particle size and shape of most oxygen carriers.
      原文链接:
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    Detection of onset of agglomeration in a bubbling fluidized bed biomass combustor using reactive Eulerian computational fluid dynamics

    Abdullah TasleemAtta UllahFei LiQun Yi...
    504-515页
    查看更多>>摘要：The choice of a type of combustion technology to be used for heat or power generation depends on economic,technical,operational and fuel availability constraints.The benefits associated with the evolving market driven by the fluidised bed combustion(FBC)technology cannot be overlooked espe-cially when gauged at 65 GWth of worldwide installed capacity alongside added benefits of handling fuel variation,low pollutant emissions and high combustion efficiency.Biomass or biomass waste will continue to have a vital role to play in the future FBC technology-based power generation.Biomass often contains high levels of inorganic species that can form sticky agglomerates posing a significant risk to boiler operation resulting in unscheduled outages.This added complexity of the behaviour of the fuel and bed material mix highlights the requirement for simulation models to identify agglomeration to help improve the overall performance and reliability of FBC technology.To resolve this problem,this research devised a simulation strategy for the detection of agglomeration using the Eulerian-Eulerian approach.The developed modelling strategy is validated with the experimental data available in literature for two-dimensional simplified geometry of a pilot-scale fluidised bed combustor.The model results were found promising and robust to predict bed defluidisation times and other parameters consistent with the experimental data.
      原文链接:
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    Electrochemical deposition of Li2S2/Li2S in aprotic Li-S batteries

    Zhifeng YaoXiaozhong FanLong Kong
    516-521页
    查看更多>>摘要：Lithium-sulfur(Li-S)batteries stand out the energy storage systems because of extremely high energy density(2600 W h Kg-1)and low-cost sulfur cathode.Unfortunately,the sluggish deposition from liquid Li polysulfides(LiPSs)to solid Li2S leads to mild power density and short cycle life.Understanding and regulating Li2S2/Li2S deposition are conceived to be importance to deliver second-plateau capacity in acceptable kinetics,which has the potential to operation Li-S batteries under electrolyte-lean conditions.This perspective aims to summarize the proposed models that can describe the nucleation and propa-gation of three-dimensional Li2S2/Li2S,as well as affords critical views how electrolyte dictates LiPS conversion from liquid to solid.It hopes to encourage necessary scaffold strategies and electrolyte for-mulations to further improve energy density and life span of Li-S batteries.
      原文链接:
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    Fluidization stability and periodic fluctuations in gas-solid separation fluidized bed using Geldart A dense medium

    Weijin LiuDan WangLiang DongEnhui Zhou...
    522-534页
    查看更多>>摘要：Gas-solid separation fluidized bed is a typical method for coal separation without water utilization.Geldart A particles is also considered as the ideal dense medium to strengthen separation efficiency.Fluidization stability reflects the bed pressure fluctuations and the distribution of bubble and emulsion phases,affecting the separation performance.And the main frequency of pressure fluctuations can directly reflect the degree of pressure fluctuations.Therefore,the detailed fluidization stability is analyzed combined the method of standard deviation of pressure fluctuations,power spectral density,etc.,for Geldart A particles.The results showed that maintaining an appropriate gas velocity resulted in an average bed pressure of around 2000 Pa.The main frequency is mainly concentrated around 1-1.5 Hz.Finally,a prediction model of the main frequency of pressure fluctuations is established,and the error can be controlled within±0.15.The investigation further proved the stable fluidization of Geldart A particles and provides a method for predicting the main frequency of pressure fluctuations in the gas-solid separation fluidized bed.
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    Effects of grain's shape-and size-polydispersities,orientation,and area fraction on tortuosity and permeability of 2D granular media

    Ke CaoHuisu ChenMohammad Iqbal KhanMingqi Li...
    535-557页
    查看更多>>摘要：The microstructure of granular media,including grain's shape-and size-polydispersities,orientation,and area fraction can potentially affect its permeability.However,few studies consider the coupling effects of these features.This work employs geometrical probability and stereology to establish quantitative re-lationships between the above microstructural features and the geometric tortuosity of the two-dimensional granular media containing superellipse,superoval,and polygon grains.Then the lattice Boltzmann method(LBM)is used to determine the permeabilities of these granular media.By combining the tortuosity model and the LBM-derived permeabilities,modified K-C equations are formulated to predict the permeability and the shape factor,considering the grain's shape-and size-polydispersities,orientation,and area fraction.The reliability of these methods can be verified by comparing them with both our simulations and available experimental,theoretical,and numerical data reported in the literature.The findings implicate that the tortuosity and permeability of the granular media are strongly correlated with the grain's shape,orientation,and area fraction but unaffected by the size polydispersity and spatial arrangement of grains.Only circularity is not enough to derive a unified formula for considering the impact of grain shape on tortuosity and permeability,other shape parameters need to be explored in the future.
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    Analysis of particle dispersion and cavity formation during bulk particle water entry using fully coupled CFD-DEM-VOF approach

    Utkan ?al(i)?kanSanja Mi?kovi?
    558-580页
    查看更多>>摘要：This paper presents the development and validation of a fully coupled computational fluid dynam-ics-discrete element method-volume of fluid(CFD-DEM-VOF)model to simulate the complex behavior of particle-laden flows with free surfaces.The coupling between the fluid and particle phases is estab-lished through the implemented continuity,momentum,and alpha transport equation.The coupled particle forces such as drag,pressure gradient,dense virtual mass,viscous,and interface forces are also integrated,with drag and dense virtual mass forces being dependent on local porosity.The integrated conservative alpha transport equation ensures phase volume conservation during interactions between particles and water.Additionally,we have implemented a trilinear interpolation method designed to operate on unstructured hexahedral meshes.This method has been tested for its ability to properly resolve the coupling effects in the numerical simulations,particularly in cases with a relatively low cell-size ratio.The model is validated through three distinct test cases:single particle water entry,dam break with particles,and water entry of a group of particles case.The experimental setup is built to study the dynamics of the water entry of a group of particles,where three key flow features are analyzed:the evolution of average particle velocity,cavity shape,and particle dispersion cloud profiles in water.The tests involve four different scenarios,including two different water levels(16.1 and 20.1 cm)and two different particle densities(2650 and 4000 kg/m3).High-speed videometry and particle tracking velocimetry(using ImageJ/TrackMate)methods are employed for experimental data acquisition.It is demonstrated that numerical results are in excellent agreement with theoretical predictions and experimental data.The study highlights the significance of vortices in cavity shaping and particle dispersion.The validated CFD-DEM-VOF model constitutes a robust tool for simulating particle-laden flows,contributing valuable insights into the complex interplay between particles and fluids.
      原文链接:
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