Simulation of three-stage operating temperature for supersaturation water-based condensational growth tube

doi:10.1016/j.jes.2019.12.007

HFCAS OpenIR

	Simulation of three-stage operating temperature for supersaturation water-based condensational growth tube
	Bian, Jiejie 1,2; Gui, Huaqiao1,3 ; Xie, Zhibo 3,4; Yu, Tongzhu1,3 ; Wei, Xiuli1,3 ; Wang, Wenyu 1,2; Liu, Jianguo1,2,3,4
	2020-04-01
发表期刊	JOURNAL OF ENVIRONMENTAL SCIENCES
ISSN	1001-0742
通讯作者	Yu, Tongzhu(tzyu@aiofm.ac.cn) ; Liu, Jianguo(jgliu@aiofm.ac.cn)
摘要	In order to realize accurate dynamic control of supersaturation and to study condensation growth characteristics of nanoparticles through different levels of supersaturation, a series of parametric analyses and systematic comparisons between two-stage and three-stage operating temperature designs were simulated with COMSOL Multiphysics. The simulation results showed that the three-stage operating temperature did not change peak supersaturation compared with two operating temperatures, and the three-stage operating temperature was superior in decreasing the amount of water vapor and the temperature, thus lowering particle loss and variation in detection and collection. The peak supersaturation level increased by 0.3 as the flow rate increased from 0.6 to 2.0 L/min, but the supersaturation peak moved from 0.0027 z0 to 0.08 z0 (i.e., the growth time and the final size decreased by 40%). Peak supersaturation increased as the temperature difference increased or the temperature difference window was shifting left, and minimumactivation size decreased. Shifting the 70 degrees C temperature difference window from 9 degrees C, 79 degrees C-1 degrees C, 71 degrees C for the condenser and initiator temperatures resulted in peak supersaturation in the centerline being above 5.8, and the activation size changed as low as 1 nm. Experiments with flow rates varying by a factor of 2.5 (from 0.6 to 1.5 L/min) resulted in a final size decrease of 43% (from 3.2 to 1.8 mm), and experimental results of outlet particle size distributions were equivalent with theoretical analysis as the operating temperature was changed. (C) 2020 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
关键词	Operating temperature Supersaturation profile Flow rate Minimum activation size Temperature difference
DOI	10.1016/j.jes.2019.12.007
关键词[WOS]	PARTICLE COUNTER ; LAMINAR-FLOW ; ULTRAFINE ; EFFICIENCY
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of China[91544218] ; National Key Research and Development Program of China[2016YFC0201001] ; Science and Technological Fund of Anhui Province for Outstanding Youth[1808085J19] ; Science and Technological Fund of Anhui Province[1908085MD114] ; CASHIPS Director's Fund[YZJJ2019QN1]
项目资助者	Natural Science Foundation of China ; National Key Research and Development Program of China ; Science and Technological Fund of Anhui Province for Outstanding Youth ; Science and Technological Fund of Anhui Province ; CASHIPS Director's Fund
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000513920600026
出版者	SCIENCE PRESS
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/103914
专题	中国科学院合肥物质科学研究院
通讯作者	Yu, Tongzhu; Liu, Jianguo
作者单位	1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Chinese Acad Sci, CAS Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
第一作者单位	中科院安徽光学精密机械研究所
通讯作者单位	中科院安徽光学精密机械研究所
推荐引用方式 GB/T 7714	Bian, Jiejie,Gui, Huaqiao,Xie, Zhibo,et al. Simulation of three-stage operating temperature for supersaturation water-based condensational growth tube[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2020,90.
APA	Bian, Jiejie.,Gui, Huaqiao.,Xie, Zhibo.,Yu, Tongzhu.,Wei, Xiuli.,...&Liu, Jianguo.(2020).Simulation of three-stage operating temperature for supersaturation water-based condensational growth tube.JOURNAL OF ENVIRONMENTAL SCIENCES,90.
MLA	Bian, Jiejie,et al."Simulation of three-stage operating temperature for supersaturation water-based condensational growth tube".JOURNAL OF ENVIRONMENTAL SCIENCES 90(2020).