Hydrodynamics of gas phase under typical industrial gassing rates in a gas-liquid stirred tank using intrusive image-based method

doi:10.1016/j.ces.2020.115923

	Hydrodynamics of gas phase under typical industrial gassing rates in a gas-liquid stirred tank using intrusive image-based method
	Xiao, Yiting 1,2; Li, Xiangyang 1; Ren, Shilong 1,2; Mao, Zai-Sha 1; Yang, Chao 1,2,3
刊名	CHEMICAL ENGINEERING SCIENCE
	2020-12-14
卷号	227 页码:14
关键词	Intrusive image-based method Gas-liquid stirred tank Local hydrodynamics of gas phase Bubble size distribution Bubble holdup distribution
ISSN号	0009-2509
DOI	10.1016/j.ces.2020.115923
英文摘要	The intrusive image-based method is used to probe local gas hydrodynamics, bubble size (BSD) and holdup distributions (BHD) in a gas-liquid stirred tank reactor (STR). A distinctive scheme combining automatic and manual processes is implemented to identify the object bubbles in the images. This method shows more accurate for judging the flow regime in gas-liquid STRs. Because of high intensity turbulence therein, the instantaneous local gas-liquid flow may present several very different patterns though the time-averaged bulk flow is homogeneous. More small bubbles are detected because of high resolution of the instrument, and consequently d(32) obtained is smaller than those by other methods. The BSD and BHD at moderate gassing rates are reported and found closer to the physical reality. The measurements are of significance to understanding the fluid mechanics and provide benchmark data for the validation of the mathematical models in the gas-liquid STRs operating at industrial conditions. (C) 2020 Elsevier Ltd. All rights reserved.
资助项目	National Key Research and Development Program[2016YFB0301701] ; National Natural Science Foundation of China[21878297] ; National Natural Science Foundation of China[21938009] ; National Natural Science Foundation of China[21961160745] ; Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-JSC030] ; External Cooperation Program of BIC, Chinese Academy of Sciences[122111KYSB20190032] ; DNL Cooperation Fund, CAS[DNL201902]
WOS关键词	BUBBLE-SIZE DISTRIBUTIONS ; SCALE-UP ; LOCAL GAS ; HOLD-UP ; VESSEL ; FLOW ; ELECTROLYTE ; DISPERSION ; TURBINE ; FIELD
WOS研究方向	Engineering
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000573579500008
资助机构	National Key Research and Development Program ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; External Cooperation Program of BIC, Chinese Academy of Sciences ; DNL Cooperation Fund, CAS
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/42289]
专题	中国科学院过程工程研究所
通讯作者	Li, Xiangyang; Yang, Chao
作者单位	1.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Xiao, Yiting,Li, Xiangyang,Ren, Shilong,et al. Hydrodynamics of gas phase under typical industrial gassing rates in a gas-liquid stirred tank using intrusive image-based method[J]. CHEMICAL ENGINEERING SCIENCE,2020,227:14.
APA	Xiao, Yiting,Li, Xiangyang,Ren, Shilong,Mao, Zai-Sha,&Yang, Chao.(2020).Hydrodynamics of gas phase under typical industrial gassing rates in a gas-liquid stirred tank using intrusive image-based method.CHEMICAL ENGINEERING SCIENCE,227,14.
MLA	Xiao, Yiting,et al."Hydrodynamics of gas phase under typical industrial gassing rates in a gas-liquid stirred tank using intrusive image-based method".CHEMICAL ENGINEERING SCIENCE 227(2020):14.