Patterns of exhaust pollution from vehicles traveling on dual-lane coal mine roads

IF 6.9 2区环境科学与生态学 Q1 ENGINEERING, CHEMICAL

Process Safety and Environmental Protection Pub Date : 2025-05-13 DOI:10.1016/j.psep.2025.107300

Xiangchen Zhang, Haiming Yu, Na Qin

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Abstract

In view of the serious exhaust pollution problems of underground fuel vehicles and the difficulty of controlling exhaust pollutants in the crossheading, this study takes the crossheading of a coal mine 25211 working face in Yulin, Shaanxi Province as an example, builds the transport model of CO, NO and NO₂ exhaust components based on Euler equation, and establishes the physical model of vehicle parking in the crossheading. Analyzing exhaust diffusion at different wind speeds, results show that at 2.00 m/s, exhaust spreads and pollutes. The concentrations of the three exhaust gases reach their peak at approximately 3.93 m from the front of the crossheading, with the peak concentration of carbon monoxide being 2.44 % of the initial concentration. The study found that when driving into the crossheading with frequent vehicle stops, the air distribution volume of the crossheading should be ensured to meet the average wind speed of more than 2.00 m/s, which can effectively dilute the concentration of CO, NO and NO₂ in vehicle exhaust and ensure the occupational safety and health of underground personnel. The average relative error of the three gases is less than 18.0 %.

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双车道煤矿道路车辆尾气污染模式

针对地下燃油车排气污染问题严重、十字路口排气污染物控制困难的问题，以陕西榆林某煤矿25211工作面十字路口为例，基于欧拉方程建立CO、NO、NO2排气组分的输送模型，建立十字路口车辆停放的物理模型。对不同风速下的尾气扩散进行分析，结果表明：在风速为2.00 m/s时，尾气扩散并产生污染；三种废气的浓度在十字路口前方约3.93 m处达到峰值，其中一氧化碳的峰值浓度为初始浓度的2.44 %。研究发现，车辆驶入频繁停车的十字路口时，十字路口送风量应保证达到平均风速2.00 m/s以上，可有效稀释车辆尾气中CO、NO、NO2的浓度，保证井下人员的职业安全与健康。三种气体的平均相对误差小于18.0 %。

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来源期刊

Process Safety and Environmental Protection 环境科学-工程：化工

CiteScore

11.40

自引率

15.40%

发文量

929

审稿时长

8.0 months

期刊介绍： The Process Safety and Environmental Protection (PSEP) journal is a leading international publication that focuses on the publication of high-quality, original research papers in the field of engineering, specifically those related to the safety of industrial processes and environmental protection. The journal encourages submissions that present new developments in safety and environmental aspects, particularly those that show how research findings can be applied in process engineering design and practice. PSEP is particularly interested in research that brings fresh perspectives to established engineering principles, identifies unsolved problems, or suggests directions for future research. The journal also values contributions that push the boundaries of traditional engineering and welcomes multidisciplinary papers. PSEP's articles are abstracted and indexed by a range of databases and services, which helps to ensure that the journal's research is accessible and recognized in the academic and professional communities. These databases include ANTE, Chemical Abstracts, Chemical Hazards in Industry, Current Contents, Elsevier Engineering Information database, Pascal Francis, Web of Science, Scopus, Engineering Information Database EnCompass LIT (Elsevier), and INSPEC. This wide coverage facilitates the dissemination of the journal's content to a global audience interested in process safety and environmental engineering.