Design and performance evaluation of an aerosol separator

Kim, D.S; Lim, K.S.; Xiang, R. B.; Lee, K.W

doi:10.1016/s0021-8502(02)00089-7

Cited by 7 publications

(2 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several regional studies have published size distribution and number concentrations of aerosol particles in North America [11][12][13], Europe [14][15][16] and many parts of China, including the Pearl River Delta region, the Yangtze River Delta region and northwestern China [17][18][19], revealing intrinsic characteristics of the different areas. For instance, the particle number concentrations and size distribution decrease with increasing distance from a freeway [20].…”

Section: Introductionmentioning

confidence: 99%

Characteristics of Ultrafine Particles and Their Relationships with Meteorological Factors and Trace Gases in Wuhan, Central China

et al. 2016

View full text Add to dashboard Cite

Ultrafine particles with a diameter below 1 µm are strongly linked to traffic and industrial emissions, causing a growing global health concern. In order to reveal the characteristics of ultrafine particles in central China, which makes up the sparse research in industrial cities of a developing country, particle number concentrations (PNC) together with meteorological parameters and concentrations of trace gases were measured over one year in Wuhan. The number concentration of ultrafine particles peaked in winter and was the lowest in summer across the entire size range monitored. Further, particles with a diameter smaller than 30 nm increased dramatically in concentration with decreasing diameter. The monthly averaged number concentrations of particles discriminated in three size ranges formed a near-inverse parabolic distribution peaking in January. This trend is supported by a negative correlation between PNC and precipitation, temperature, and mixing layer height, which emphasizes the effect of these meteorological parameters on scouring, convection, and diffusion of particles. However, since wind not only disperses particulate matter but also brings in exogenous particles, wind speed plays an equivocal role in particle number concentrations. The diurnal analysis indicates that hourly measurements of trace gases concentrations could be used as a proxy for dense industrial activities and to reveal some complex chemical reactions. The results of this study offer reasonable estimations of particle impacts and provide references for policymaking of emission control in the industrial cities of developing countries.

show abstract

Section: Introductionmentioning

confidence: 99%

Characteristics of Ultrafine Particles and Their Relationships with Meteorological Factors and Trace Gases in Wuhan, Central China

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Particles can be separated from a flow without the use of a filter medium by cascade, centrifuge, cyclone, or electrostatic means (Avci & Karagoz, 2003;Gimbun, Choong, & Chuah, 2003;Kim, Lim, Xiang, & Lee, 2002;Olfert, Reavell, Rushton, & Collings, 2006;Ray, Hoffmann, & Postma, 2000); most studies are concerned with particle sizing. The current application requires effective removal of oil particles to below 1 mm diameter from a carrier flow that can reach 200 l/min.…”

mentioning

confidence: 99%

Analysis and design of a centrifugal filter geometry for entrained particle separation

Olley¹,

Archer²,

Copley³

et al. 2010

Journal of Aerosol Science

View full text Add to dashboard Cite

Design and Performance Evaluation of Low‐Volume PM_2.5 Inlet for Analyzing Chemical Composition

Kim

Hong

Kim

et al. 2003

Part & Part Syst Charact

View full text Add to dashboard Cite

A new PM2.5 inlet, based on the particle cup impactor configuration, was designed for sampling fine particles smaller than 2.5 μm in aerodynamic diameter and for operating at a flow rate of 5 l/min, as the devices, which are used to analyze the chemical composition of the particles, have good efficiency only at low‐volume flow rates. The performance of the inlet was evaluated in a test chamber, and the optimum dimensions of the particle cup impactor were determined by varying the nozzle‐to‐cup distance. Additional experiments covering flow rates between 3 and 10 l/min with particle sizes between 0.8 and 5.0 μm were carried out in the test chamber. The performance indicated that a nozzle‐to‐cup distance of 1.1 mm would yield a sharp size cutoff. The results from the tests showed that the inlet had a cutoff size of 2.55 μm in aerodynamic diameter at a flow rate of 5 l/min.

show abstract

Design and performance evaluation of an aerosol separator

Cited by 7 publications

References 6 publications

Characteristics of Ultrafine Particles and Their Relationships with Meteorological Factors and Trace Gases in Wuhan, Central China

Characteristics of Ultrafine Particles and Their Relationships with Meteorological Factors and Trace Gases in Wuhan, Central China

Analysis and design of a centrifugal filter geometry for entrained particle separation

Design and Performance Evaluation of Low‐Volume PM_2.5 Inlet for Analyzing Chemical Composition

Contact Info

Product

Resources

About

Design and performance evaluation of an aerosol separator

Cited by 7 publications

References 6 publications

Characteristics of Ultrafine Particles and Their Relationships with Meteorological Factors and Trace Gases in Wuhan, Central China

Characteristics of Ultrafine Particles and Their Relationships with Meteorological Factors and Trace Gases in Wuhan, Central China

Analysis and design of a centrifugal filter geometry for entrained particle separation

Design and Performance Evaluation of Low‐Volume PM2.5 Inlet for Analyzing Chemical Composition

Contact Info

Product

Resources

About

Design and Performance Evaluation of Low‐Volume PM_2.5 Inlet for Analyzing Chemical Composition