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Particle Deposition and Sustainable Ventilation Strategies for Clean Air in Diesel-Polluted Confined Spaces

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  • Peiyong Ni

    (School of Mechanical Engineering, Nantong University, Nantong 226019, China)

  • Zhen Dong

    (School of Mechanical Engineering, Nantong University, Nantong 226019, China)

  • Xiangli Wang

    (School of Electrical Engineering and Automation, Nantong University, Nantong 226019, China)

  • Xuewen Zhang

    (School of Mechanical Engineering, Nantong University, Nantong 226019, China)

  • Xiang Li

    (School of Mechanical Engineering, Nantong University, Nantong 226019, China)

Abstract

The deposition and dispersion of particulate matter from diesel combustion in confined spaces pose significant challenges to air quality and public health, with important implications for sustainable development goals. While previous studies have focused on particle behavior inside diesel engines, the external environmental effects remain poorly understood. This study systematically investigated the mass concentrations and deposition characteristics of PM 1 , PM 2.5 , and PM 10 particles in a 1 m 3 environmental chamber under both sealed and ventilated conditions. The experimental results demonstrated that natural deposition ratios reached 50–75% after 8 h across all particle sizes. A comparative evaluation of ventilation strategies showed lateral ventilation achieved superior particle reduction ratios of 36%, outperforming direct ventilation at 14–22% and non-ventilated conditions at 23%. The study revealed that ventilation-induced convective removal was more effective than gravitational settling alone, providing important technical insights for air quality management in enclosed environments. These findings offer valuable scientific guidance for optimizing ventilation systems while contributing to the development of sustainable solutions for particulate pollution control. The research advances our understanding of particle behavior in confined spaces and supports technological innovations for cleaner air in urban infrastructure.

Suggested Citation

  • Peiyong Ni & Zhen Dong & Xiangli Wang & Xuewen Zhang & Xiang Li, 2025. "Particle Deposition and Sustainable Ventilation Strategies for Clean Air in Diesel-Polluted Confined Spaces," Sustainability, MDPI, vol. 17(11), pages 1-16, May.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:11:p:5029-:d:1668518
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    References listed on IDEAS

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    3. Qian, Yong & Li, Zilong & Yu, Liang & Wang, Xiaole & Lu, Xingcai, 2019. "Review of the state-of-the-art of particulate matter emissions from modern gasoline fueled engines," Applied Energy, Elsevier, vol. 238(C), pages 1269-1298.
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