Experimental study of particle deposition on patterned microstructured surfaces in a chamber environment

Zhong, Xiaoling; Fu, Sau Chung; Chan, Ka Chung; Chao, Christopher Yu Hang

doi:10.1016/j.jaerosci.2021.105802

Cited by 9 publications

(3 citation statements)

References 34 publications

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“…The shape of the ribs was discovered to influence the size of the gas flow field and recirculation zone, which in turn influence particle deposition efficiency. Triangular shaped ribs were found to have higher PM collection efficiency than other designs [78,79]. These studies have shown that cavities and ribs on the inner walls of sampler pipes improve the PM collection efficiency to some extent, as shown in Figure 3E.…”

Section: Cavities and Ribs On The Inner Wall Of The Pipementioning

confidence: 82%

Mechanisms, Techniques and Devises of Airborne Virus Detection: A Review

Chang¹,

Wang²,

Li³

et al. 2023

Preprint

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Airborne virus, such as COVID-19, caused pandemics all over the world. Virus-containing particles produced by infected individuals are suspended in the air for extended periods of time, actually results in viral aerosols and the spread of infectious diseases. Aerosol collection and detection devices are essential for limiting the spread of airborne virus diseases. This review provides an overview of the primary mechanisms and enhancement techniques for collecting and detecting airborne viruses. Indoor virus detection strategies for scenarios with varying ventilations are also summarized based on the excellent performance of existing advanced comprehensive devices. This review provides guidance for the development of future aerosol detection devices and aids in the control of airborne transmission diseases, such as COVID-19, monkeypox, and other airborne transmission viruses.

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Section: Cavities and Ribs On The Inner Wall Of The Pipementioning

confidence: 82%

Mechanisms, Techniques and Devises of Airborne Virus Detection: A Review

Chang¹,

Wang²,

Li³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…The shape of the ribs was discovered to influence the size of the gas flow field and recirculation zone, which in turn influence particle deposition efficiency. Triangular shaped ribs were found to have higher PM collection efficiency than other designs [ 94 , 95 ]. These studies have shown that cavities and ribs on the inner walls of sampler pipes improve the PM collection efficiency to some extent, as shown in Figure 2 E. The following factors have the greatest impact on the efficiency of cavities and ribs: (1) Ribs spacing, height ratio: m = p/h; (2) Ribs shape.…”

Section: Sampling Techniques and Devices Of Airborne Virusesmentioning

confidence: 99%

Mechanisms, Techniques and Devices of Airborne Virus Detection: A Review

Chang

Wang

et al. 2023

IJERPH

View full text Add to dashboard Cite

Airborne viruses, such as COVID-19, cause pandemics all over the world. Virus-containing particles produced by infected individuals are suspended in the air for extended periods, actually resulting in viral aerosols and the spread of infectious diseases. Aerosol collection and detection devices are essential for limiting the spread of airborne virus diseases. This review provides an overview of the primary mechanisms and enhancement techniques for collecting and detecting airborne viruses. Indoor virus detection strategies for scenarios with varying ventilations are also summarized based on the excellent performance of existing advanced comprehensive devices. This review provides guidance for the development of future aerosol detection devices and aids in the control of airborne transmission diseases, such as COVID-19, influenza and other airborne transmission viruses.

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“…Based on the purpose of this research and referring to the experiences reported in related experimental research [16], an experimental chamber was built, as shown in Figure 2. The volume of this chamber was 1 m × 1 m × 1 m. To prevent electrostatic influence on particle movement, the inner walls were built using antistatic polycarbonate plates, which were wrapped in polystyrene extrusion plates for heat insulation.…”

Section: Building and Setting Of The Experimental Chambermentioning

confidence: 99%

Effects of Ambient Temperature and Humidity on Natural Deposition Characteristics of Airborne Biomass Particles

Yuan

Chen

et al. 2023

IJERPH

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In the production process of biomass energy with crop straw as the raw material, the indoor dust environment created by smashed plant fiber can affect the health of workers and lead to the risk of fire and explosions. The physical properties of biomass vary with the ambient air conditions, resulting in different deposition processes for airborne biomass particles. In this study, the deposition of biomass particles in different environments in an experimental chamber was examined by independently controlling the internal temperature and relative humidity. The results show that in the ambient temperature range of 20~40 °C and at a relative humidity of 25~65%, the water absorption rates of the biomass particles were 15.4~24.7%. The deposition rates of the airborne biomass particles with different sizes were 0.9~2.9 h−1, which positively correlated with the particle sizes in the same ambient conditions. The increase in ambient temperature and relative humidity promoted the deposition of biomass particles with diameters over 0.5 μm. For the particles with diameters below 0.5 μm, the deposition rates were nonlinearly related to the ambient temperature and relative humidity and were greater at lower temperatures. The significance levels of the factors influencing the particle deposition were particle size > ambient temperature > ambient relative humidity. For the biomass particles below 0.5 μm, the influence of the relative humidity on the deposition was much weaker than that of the temperature.

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Experimental study of particle deposition on patterned microstructured surfaces in a chamber environment

Cited by 9 publications

References 34 publications

Mechanisms, Techniques and Devises of Airborne Virus Detection: A Review

Mechanisms, Techniques and Devises of Airborne Virus Detection: A Review

Mechanisms, Techniques and Devices of Airborne Virus Detection: A Review

Effects of Ambient Temperature and Humidity on Natural Deposition Characteristics of Airborne Biomass Particles

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