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Effect of Aerosol Loading on Separation Performance of PM2.5 Cyclone Separators

文献类型：期刊论文

作者Lin, Chih-Wei1; Chen, Ting-Ju1; Huang, Sheng-Hsiu1; Kuo, Yu-Mei2; Gui, Hua-Qiao3; Chen, Chih-Chieh1
刊名AEROSOL AND AIR QUALITY RESEARCH
出版日期2018-06-01
卷号18期号:6页码:1366-1374
关键词Aerosol loading Size-selective separator Cyclone Continuous aerosol monitoring
ISSN号1680-8584
DOI10.4209/aaqr.2017.11.0458
通讯作者Kuo, Yu-Mei(ymkuo@mail.hwai.edu.tw)
英文摘要The adverse health effects of particulate matter less than 2.5 mu m in diameter (PM2.5) have drawn increasing attention over the past several decades. To obtain reliable measurements, it is critical to efficiently separate PM2.5 in the airstream from the beginning till the end of sampling. However, commonly used separators for PM2.5 monitoring, such as the BGI Very Sharp Cut Cyclone (VSCC), are usually subject to aerosol-loading effects. This study investigates the loading effect on cyclone separation performance as a function of particle size, cyclone size, particle material, and air humidity. Based on the ratios of dimensions to the body diameter of the BGI VSCC, four cyclones with different body diameters (13-35.6 mm) were fabricated. An ultrasonic atomizer was employed to generate micrometer-sized potassium sodium tartrate (PST) particles and sodium chloride (NaCl) particles as solid challenge particles and di-ethyl-hexyl-sebacate (DEHS) particles as liquid ones. Aerosol particles were neutralized to the Boltzmann charge equilibrium. An aerodynamic particle sizer measured the aerosol distributions and number concentrations upstream and downstream of the cyclones. The experimental results show that solid particles such as PST with sizes close to the cyclone cut-point exhibit a significant loading effect. However, no significant difference is found due to the aerosol loading effect on four different-sized cyclones. The cyclone separation curve appears to shift toward smaller sizes due to aerosol loading. During the loading test, the aerosol penetration of 2.5-mu m particles abruptly decreased during the first 20 minutes from 50% to a relatively stable level at 30%-an average decrease of 20%. Thus, the performance of cyclone PM2.5 samplers with progressive aerosol loading might result in an underestimation of PM2.5, particularly for continuous monitoring.
WOS关键词PARTICULATE AIR-POLLUTION ; PENETRATION ; MORTALITY ; IMPACT
资助项目Ministry of Science and Technology, Taiwan, R. O. C.[MOST 105-3011-F-273-001] ; Ministry of Science and Technology, Taiwan, R. O. C.[MOST 106-3011-F-273-001]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000434011800002
出版者TAIWAN ASSOC AEROSOL RES-TAAR
资助机构Ministry of Science and Technology, Taiwan, R. O. C. ; Ministry of Science and Technology, Taiwan, R. O. C. ; Ministry of Science and Technology, Taiwan, R. O. C. ; Ministry of Science and Technology, Taiwan, R. O. C. ; Ministry of Science and Technology, Taiwan, R. O. C. ; Ministry of Science and Technology, Taiwan, R. O. C. ; Ministry of Science and Technology, Taiwan, R. O. C. ; Ministry of Science and Technology, Taiwan, R. O. C. ; Ministry of Science and Technology, Taiwan, R. O. C. ; Ministry of Science and Technology, Taiwan, R. O. C. ; Ministry of Science and Technology, Taiwan, R. O. C. ; Ministry of Science and Technology, Taiwan, R. O. C. ; Ministry of Science and Technology, Taiwan, R. O. C. ; Ministry of Science and Technology, Taiwan, R. O. C. ; Ministry of Science and Technology, Taiwan, R. O. C. ; Ministry of Science and Technology, Taiwan, R. O. C. ; Ministry of Science and Technology, Taiwan, R. O. C. ; Ministry of Science and Technology, Taiwan, R. O. 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C. ; Ministry of Science and Technology, Taiwan, R. O. C. ; Ministry of Science and Technology, Taiwan, R. O. C.
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/36634]  
专题合肥物质科学研究院_中科院安徽光学精密机械研究所
通讯作者Kuo, Yu-Mei
作者单位1.Natl Taiwan Univ, Coll Publ Hlth, Inst Occupat Med & Ind Hyg, Taipei 10055, Taiwan
2.Chung Hwa Univ Med Technol, Dept Occupat Safety & Hlth, Tainan 71703, Taiwan
3.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei 230031, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Lin, Chih-Wei,Chen, Ting-Ju,Huang, Sheng-Hsiu,et al. Effect of Aerosol Loading on Separation Performance of PM2.5 Cyclone Separators[J]. AEROSOL AND AIR QUALITY RESEARCH,2018,18(6):1366-1374.
APA Lin, Chih-Wei,Chen, Ting-Ju,Huang, Sheng-Hsiu,Kuo, Yu-Mei,Gui, Hua-Qiao,&Chen, Chih-Chieh.(2018).Effect of Aerosol Loading on Separation Performance of PM2.5 Cyclone Separators.AEROSOL AND AIR QUALITY RESEARCH,18(6),1366-1374.
MLA Lin, Chih-Wei,et al."Effect of Aerosol Loading on Separation Performance of PM2.5 Cyclone Separators".AEROSOL AND AIR QUALITY RESEARCH 18.6(2018):1366-1374.

入库方式： OAI收割

来源：合肥物质科学研究院

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