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The transmission of respiratory infectious diseases in transportation cabin has always been a serious challenge. To reduce transmission of aerosol in aircraft cabin, we quantified the aerosol concentration in the passenger breathing area, that measured under different working conditions with air curtain outlet flow rates of 0, 0.08, 0.16 and 0.24 m3/s. The results show that the particle concentrations were reduced up to 53.2% and 60.6% respectively in the breathing zones of seats adjacent to pollution sources by the vertical air flow, compare to the flow rates of 0 m3/s with 0.16 m3/s. Furthermore, human thermal comfort indicators were evaluated under those working conditions, revealed potential problem of thermal comfort caused by vertical air curtains.

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Effect of Vertical Air Curtains on Aerosol Transmission and Thermal Comfort in a Mixing Ventilation Cabin

  • 会议论文

  • 发表日期：

    2025年

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  • Zhuxun Liu,
  • Guang Yang,
  • Jingyi Wu

摘要

The transmission of respiratory infectious diseases in transportation cabin has always been a serious challenge. To reduce transmission of aerosol in aircraft cabin, we quantified the aerosol concentration in the passenger breathing area, that measured under different working conditions with air curtain outlet flow rates of 0, 0.08, 0.16 and 0.24 m3/s. The results show that the particle concentrations were reduced up to 53.2% and 60.6% respectively in the breathing zones of seats adjacent to pollution sources by the vertical air flow, compare to the flow rates of 0 m3/s with 0.16 m3/s. Furthermore, human thermal comfort indicators were evaluated under those working conditions, revealed potential problem of thermal comfort caused by vertical air curtains.