Scale-up effect of residence time distribution of polydisperse particles in continuously operated multiple-chamber fluidized beds

doi:10.1016/j.ces.2021.116809

	Scale-up effect of residence time distribution of polydisperse particles in continuously operated multiple-chamber fluidized beds
	Lan, Bin 1,2; Xu, Ji 1,2; Zhao, Peng 1,2; Zou, Zheng 1,2; Wang, Junwu 1,2,3; Zhu, Qingshan 1,2,3
刊名	CHEMICAL ENGINEERING SCIENCE
	2021-11-23
卷号	244 页码:11
关键词	Gas-solid flow Polydisperse particles Residence time distribution Discrete simulation Scale-up
ISSN号	0009-2509
DOI	10.1016/j.ces.2021.116809
英文摘要	A GPU-based, massively parallel coarse-grained CFD-DEM method was adapted to study the scale-up effect of residence time distribution of polydisperse particles in continuously operated multiple chamber fluidized beds, where the bed is scaled up either by keeping a constant length of each chamber and increasing the number of chambers (Scaling method I) or by maintaining the number unchanged but increasing the length of each chamber (Scaling method II). It was shown that (i) the pressure drop and the residence time distribution of particles in a laboratory scale fluidized bed can be predicted reasonably well; (ii) when the solids feed rate is a constant (Operation I), the mean residence time of each type of particles scaled linearly as the bed length in both of Scaling methods I and II; (iii) when the solids feed rate is linearly increased with increasing bed length (Operation II), Scaling method I results in a continuously reduced ratio of mean residence time between coarse (medium) particles and fine particles, and the ratios level off with increasing bed length in Scaling method II; (iv) the mean residence time of particles can be inferred from the mean solids holdup obtained from CFD simulations and the mass fraction of particles at the inlet, thus offering a much faster way to estimate the mean residence time of particles; and (v) the equivalent number of perfect mixing tanks that corresponds to the mixing characteristics of real fluidized beds is linearly scaled as the bed length in Operation II, irrespective of Scaling methods. (c) 2021 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[11988102] ; National Natural Science Foundation of China[21978295] ; National Natural Science Foundation of China[91834303] ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM-2019-A13] ; Key Research Program of Frontier Science, Chinese Academy of Sciences[QYZDJ-SSW-JSC029] ; "Transformational Technologies for Clean Energy and Demonstration", Strategic Priority Research Program of the Chinese Academy of Sciences[XDA21030700] ; Fund of State Key Laboratory of Multiphase Complex Systems[MPCS-2019-A-07] ; Fund of State Key Laboratory of Multiphase Complex Systems[MPCS-2019-D-10]
WOS关键词	EMMS DRAG MODEL ; SIZE DISTRIBUTION ; SIMULATION ; CFD ; GAS ; FLOW ; HYDRODYNAMICS
WOS研究方向	Engineering
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000672593300004
资助机构	National Natural Science Foundation of China ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences ; Key Research Program of Frontier Science, Chinese Academy of Sciences ; "Transformational Technologies for Clean Energy and Demonstration", Strategic Priority Research Program of the Chinese Academy of Sciences ; Fund of State Key Laboratory of Multiphase Complex Systems
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/49361]
专题	中国科学院过程工程研究所
通讯作者	Wang, Junwu; Zhu, Qingshan
作者单位	1.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, PR, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, Beijing 100190, PR, Peoples R China 3.Chinese Acad Sci, Innovat Acad Green Mfg, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Lan, Bin,Xu, Ji,Zhao, Peng,et al. Scale-up effect of residence time distribution of polydisperse particles in continuously operated multiple-chamber fluidized beds[J]. CHEMICAL ENGINEERING SCIENCE,2021,244:11.
APA	Lan, Bin,Xu, Ji,Zhao, Peng,Zou, Zheng,Wang, Junwu,&Zhu, Qingshan.(2021).Scale-up effect of residence time distribution of polydisperse particles in continuously operated multiple-chamber fluidized beds.CHEMICAL ENGINEERING SCIENCE,244,11.
MLA	Lan, Bin,et al."Scale-up effect of residence time distribution of polydisperse particles in continuously operated multiple-chamber fluidized beds".CHEMICAL ENGINEERING SCIENCE 244(2021):11.