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Verification of size-resolved population balance modeling for engineered nanoparticles under high concentration
Yu, Mingzhou1,2,3; Lin, Jianzhong1,4; Seipenbusch, Martin3; Cao, Junji2
2017-09-01
发表期刊CHEMICAL ENGINEERING JOURNAL
卷号323期号:2017页码:592-604
文章类型Article
摘要Concerns have increased regarding the efficacy of population balance modeling (PBM) for determining the size-resolved behavior of engineered nanoparticles (ENPs) in chemical reactors, flames and workplaces. For the first time, we used a well-designed experiment to verify the feasibility of PBM and crucial factors affecting the accuracy of this method when size-resolved behavior was primarily concerned. The dynamic processes were designed to maximally represent high concentration involving aggregate production, deposition, coagulation, and transport. A population balance equation corresponding to the physical changes in an experiment was established and was further solved using the highly accurate moving sectional method. We verified four representative aggregate collision rate functions, namely the modified Fuchs collision rate function, Dahneke's collision function, harmonic mean collision function, and aggregate function newly developed by Thajudeen et al. (Aerosol Sci. Technol. 46 (2012) 1174-1186). The PBM implemented using the Thajudeen et al.'s aggregate function revealed highest agreement between the simulation and measurement. We observed both fractal dimension and primary particle diameter have apparent effects on the accuracy of PBM, indicating that both are key parameters in the implementation of PBM, whereas the pre-exponential factor only slightly affects the accuracy of PBM. The PBM with constant primary particle size, fractal dimension, and pre-exponential factor was finally verified as a reliable method for studying size-resolved evolution of ENPs over time. (C) 2017 Elsevier B.V. All rights reserved.
关键词Size-resolved Population Balance Modeling Fractal-like Aggregate High Concentration Verification
WOS标题词Science & Technology ; Technology
DOI10.1016/j.cej.2017.04.128
关键词[WOS]TRANSITION REGIME ; NONSPHERICAL PARTICLES ; AEROSOL COAGULATION ; PARTICULATE MATTER ; DEPOSITION RATES ; SMOOTH SURFACES ; SPARK DISCHARGE ; EMISSION RATES ; SIMULATION ; FLAME
收录类别SCI
语种英语
WOS研究方向Engineering
WOS类目Engineering, Environmental ; Engineering, Chemical
WOS记录号WOS:000402343300060
引用统计
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5465
专题粉尘与环境研究室
作者单位1.China Jiliang Univ, Hangzhou 310018, Zhejiang, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, Xian 710075, Peoples R China
3.Karlsruhe Inst Technol, Inst Mech Proc Engn & Mech, Karlsruhe, Germany
4.Zhejiang Univ, Inst Fluid Engn, Hangzhou, Zhejiang, Peoples R China
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Yu, Mingzhou,Lin, Jianzhong,Seipenbusch, Martin,et al. Verification of size-resolved population balance modeling for engineered nanoparticles under high concentration[J]. CHEMICAL ENGINEERING JOURNAL,2017,323(2017):592-604.
APA Yu, Mingzhou,Lin, Jianzhong,Seipenbusch, Martin,&Cao, Junji.(2017).Verification of size-resolved population balance modeling for engineered nanoparticles under high concentration.CHEMICAL ENGINEERING JOURNAL,323(2017),592-604.
MLA Yu, Mingzhou,et al."Verification of size-resolved population balance modeling for engineered nanoparticles under high concentration".CHEMICAL ENGINEERING JOURNAL 323.2017(2017):592-604.
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