Abstract
We investigated the impact of exhaust emissions from hydraulic support transporters on the air quality in roadways in mines. The dispersion distribution of diesel exhaust pollutants emitted by hydraulic support transporters was simulated with a dynamic mesh and computational fluid dynamics (CFD) simulations. More specifically, the dispersion and distribution of the main exhaust pollutants CO, HC, and NOx emitted by vehicles under the influence of the roadway wind flow were simulated with CFD simulations; in addition, the dispersion characteristics of exhaust pollutants from hydraulic support transporters during multiple driving phases in an alleyway (from transporting material, being unloaded at idle speed, to driving off without load) were predicted. The simulation results show that exhaust pollutants emitted by moving hydraulic support transporters can pollute the air in roadways and negatively affect the performance of gas monitoring devices in the roadway. Therefore, coal mining companies should optimize the ventilation design scheme to improve the air quality in roadways: they should increase the ventilation volume to dilute the emitted pollutants; in addition, the positions of underground gas monitoring devices should be adjusted to prevent interference from exhaust pollutants emitted by vehicles. This paper provides the theoretical basis and results of a preliminary investigation of the dispersion and transportation characteristics of exhaust pollutants emitted by vehicles in roadways. The results in this paper can serve as guidance for reducing the risk of occupational diseases.
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Funding
This work has been funded by the National Natural Science Foundation of China (NO. 52174191 and 51874191), the national Key R&D Program of China (2017YFC0805201), Qingchuang Science and Technology Project of Shandong Province University (2020KJD002), and Taishan Scholar Project Special Funding (TS20190935).
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XL: software, original draft preparation, writing; WN: conceptualization, methodology, writing—reviewing, editing, writing; YH: investigation; CL: data curation; LG: validation.
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Nie, W., Liu, X., Liu, C. et al. Prediction of dispersion behavior of typical exhaust pollutants from hydraulic support transporters based on numerical simulation. Environ Sci Pollut Res 29, 38110–38125 (2022). https://doi.org/10.1007/s11356-021-17959-5
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DOI: https://doi.org/10.1007/s11356-021-17959-5