Verification of size-resolved population balance modeling for engineered nanoparticles under high concentration

doi:10.1016/j.cej.2017.04.128

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	Verification of size-resolved population balance modeling for engineered nanoparticles under high concentration
	Lin, Jianzhong 2,4; Seipenbusch, Martin 3; Cao, Junji 1; Yu, Mingzhou 1,2,3
刊名	CHEMICAL ENGINEERING JOURNAL
	2017-09-01
卷号	323 期号:2017 页码:592-604
关键词	Size-resolved Population Balance Modeling Fractal-like Aggregate High Concentration Verification
DOI	10.1016/j.cej.2017.04.128
文献子类	Article
英文摘要	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.
WOS关键词	TRANSITION REGIME ; NONSPHERICAL PARTICLES ; AEROSOL COAGULATION ; PARTICULATE MATTER ; DEPOSITION RATES ; SMOOTH SURFACES ; SPARK DISCHARGE ; EMISSION RATES ; SIMULATION ; FLAME
WOS研究方向	Engineering
语种	英语
WOS记录号	WOS:000402343300060
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5465]
专题	地球环境研究所_粉尘与环境研究室
作者单位	1.Chinese Acad Sci, Inst Earth Environm, Xian 710075, Peoples R China 2.China Jiliang Univ, Hangzhou 310018, Zhejiang, 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
推荐引用方式 GB/T 7714	Lin, Jianzhong,Seipenbusch, Martin,Cao, Junji,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	Lin, Jianzhong,Seipenbusch, Martin,Cao, Junji,&Yu, Mingzhou.(2017).Verification of size-resolved population balance modeling for engineered nanoparticles under high concentration.CHEMICAL ENGINEERING JOURNAL,323(2017),592-604.
MLA	Lin, Jianzhong,et al."Verification of size-resolved population balance modeling for engineered nanoparticles under high concentration".CHEMICAL ENGINEERING JOURNAL 323.2017(2017):592-604.