Local dispersion characteristics of dust in large open-air piles under the action of one-way wind

Duan, Zhenya; Wang, Yan; Jiao, Qiheng; Wang, Jie; Liu, Yongzhen

doi:10.1007/s11356-021-13998-0

Cited by 3 publications

(1 citation statement)

References 24 publications

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“…Ferreira et al [19] evaluated the of building effects on wind erosion of a pile using a large wind tunnel (800 mm high, 1,500 mm wide, and 8,120 mm long) with a wind speed of 8 m/s. Duan et al [20] employed a wind tunnel with a test section size of 600 mm × 600 mm × 1800 mm and continuously controlled wind speed to perform PIV measurements to validate numerical models of the ow over the pile. The main dimension of the pile model was 200 mm in length, representing a scale of 500:1.…”

Section: Introductionmentioning

confidence: 99%

Wind tunnel study of iron ore dust emissions from stockpile and train wagons

Fontana,

Silva,

Pontes

et al. 2024

Preprint

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This work presents the development of a research facility to evaluate dust emissions involving wagon and stockpile models, considering operational and environmental variables. Furthermore, the influence of wagon vibration along the railway was considered to match the experimental conditions more closely to reality. The experimental apparatus consisted of a wind tunnel to simulate the wind speed, two lamps with controlled power sources to simulate insolation, a spray nozzle to simulate rain, a turntable to modify the wind direction, a dynamic weighing system, and a particle counter to record particulate emissions during the test. Performance tests of solidifying-type dust suppressants were also conducted. A suppressant application system was incorporated into the wagon and stockpile models. The tests demonstrated that the experimental apparatus could evaluate the performance of dust suppressants and could be used for approval purposes. Tests with vibration revealed interesting effects resulting from material compaction in wagons. Endurance tests demonstrated the apparatus capacity in tests of this nature. Thus, the developed experimental apparatus could be employed as an important tool to develop scientific studies on dust emissions.

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Section: Introductionmentioning

confidence: 99%