Effects of hole shape and bottom gap on the flow characteristics behind butterfly porous fence and its application in dust diffusion control in large open-air piles

Duan, Zhenya; Jiao, Qiheng; Wang, Yan; Zhang, Junmei; Zhai, Huamin

doi:10.1007/s11356-023-26293-x

Environ Sci Pollut Res

2023

DOI: 10.1007/s11356-023-26293-x

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Effects of hole shape and bottom gap on the flow characteristics behind butterfly porous fence and its application in dust diffusion control in large open-air piles

Zhenya Duan

Qiheng Jiao

Yan Wang

et al.

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2024

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Cited by 1 publication

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Environmental impact assessment of the coal yard and ambient pollution

Kucbel,

Raclavská,

Slamová

et al. 2024

Environ Sci Pollut Res

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This study investigates the vertical distribution of pollutants emitted from coal yards using unmanned aerial vehicles (UAVs). Vertical concentration measurements of black carbon (BC) and particulate matter (PM) in a range of 1 m to 100 m above ground level (AGL) in the central coal yard showed clear spatial patterns and gradients of these pollutants. In addition, measurements were taken at specific heights (1 m, 30 m AGL, and 60 m AGL) at seven locations approximately 3 km from the yard. Thirteen measurements were carried out during the non-heating period under similar weather conditions. The measured BC concentrations decreased significantly with increasing altitude, with ground-level concentrations reaching 1.88 ± 0.61 µg/m3 and decreasing by over 46% at 80 m AGL. Similarly, PM10 concentrations at 60 m AGL decreased by 21.7%, with values of 25.99 ± 9.24 µg/m3 measured near the ground level and 16.52 ± 8.31 µg/m3 at 60 m AGL. The maximum coal particle pollution from the coal depot ranges from 500 to 1,000 m. The study showed a significant decrease in BC concentrations with height above the coal yard surface. Concentrations of PM10 and PM10-TSP showed a complex distribution influenced by local emissions and long-range particle transport. Meteorological factors, especially wind speed and direction, significantly influenced the pollutant dispersion. In addition, higher pollutant concentrations were measured during dry periods than after rainfall. The findings of this study contribute to a better understanding of the dispersion patterns and potential impacts of coal dust, enabling the implementation of targeted mitigation strategies and improved pollution control measures.

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Environmental impact assessment of the coal yard and ambient pollution

Kucbel,

Raclavská,

Slamová

et al. 2024

Environ Sci Pollut Res

View full text Add to dashboard Cite

show abstract

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Effects of hole shape and bottom gap on the flow characteristics behind butterfly porous fence and its application in dust diffusion control in large open-air piles

Cited by 1 publication

References 30 publications

Environmental impact assessment of the coal yard and ambient pollution

Environmental impact assessment of the coal yard and ambient pollution

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