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Comparing Design Schemes and Infection Risk Assessment of Negative Pressure Isolation Cabin

Author

Listed:
  • Shuwen Zhou

    (School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China)

  • Yixin Zan

    (School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China)

  • Xiaolong Liu

    (School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China
    School of Mechanical Engineering, Ningxia Institute of Science and Technology, Shizuishan 753000, China)

Abstract

At present, various public health emergencies have forced a deeper study of measures to prevent infectious diseases. To prevent the spread of infectious diseases on large cruise ships, the use of negative pressure isolation cabins is an effective method. However, existing cruise ships rarely use negative pressure isolation cabins or use them with shortcomings such as unreasonable layout of air inlets, which do not effectively reduce the risk of infection for medical staff while isolating patients. To solve this problem, first, the method of active air interference and the principle of proximity of the fresh air outlet were examined in this paper, and four groups of optimization schemes were designed. Second, by analyzing the diffusion of droplets in three breathing modes (coughing, sneezing, and talking while wearing or not wearing a mask), the direction of droplets and the efficiency of pollutant discharge under the condition of coughing were compared. Finally, in this paper, the infection risk of contact transmission and aerosol transmission was optimized by using the linear quantitative evaluation method and MSDR method, respectively. The results showed that the auxiliary air intake layout of optimal scheme 2 can effectively reduce the risk of infection for medical personnel in negative pressure isolation cabins. This study provides a useful reference for the design and optimization of negative pressure isolation cabins in future cruise ships.

Suggested Citation

  • Shuwen Zhou & Yixin Zan & Xiaolong Liu, 2023. "Comparing Design Schemes and Infection Risk Assessment of Negative Pressure Isolation Cabin," Sustainability, MDPI, vol. 15(17), pages 1-25, August.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:17:p:12780-:d:1223636
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    References listed on IDEAS

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    1. Ann-Christin Kordsmeyer & Natascha Mojtahedzadeh & Jan Heidrich & Kristina Militzer & Thomas von Münster & Lukas Belz & Hans-Joachim Jensen & Sinan Bakir & Esther Henning & Julian Heuser & Angelina Kl, 2021. "Systematic Review on Outbreaks of SARS-CoV-2 on Cruise, Navy and Cargo Ships," IJERPH, MDPI, vol. 18(10), pages 1-26, May.
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