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Effects of Hospital Ward Curtains on Ventilation in a Four-bed Hospital Ward

Category: Air Pollution and Health Effects

Accepted Manuscripts
DOI: 10.4209/aaqr.2017.11.0469
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Jung-Hun Noh1,2, Jungsuk Lee1, Kwang-Chul Noh3, Young-Won Kim4, Se-Jin Yook 1

  • 1 School of Mechanical Engineering, Hanyang University, Seoul 04763, Korea
  • 2 R&D Center for Research & Business Cooperation Mechatronics Team, Institute for Advanced Engineering, Yongin 17180, Korea
  • 3 Air Lab, Gwangju 61478, Korea
  • 4 International Research Center for Geothermal Energy, Korea Institute of Industrial Technology, Gwangju 61012, Korea

Highlights

This study used age of air to analyze ventilation efficiency within a hospital ward.
Ventilation systems, air cleaners, and individual patient curtains were considered.
Ventilation efficiency according to each factor was compared using age of air data.
Ventilation was most efficient, when using both ventilation system and air cleaner.
Individual curtains interfered with air circulation, reducing ventilation efficiency.


Abstract

Various highly infective pathogens might be present in hospital wards, and these pathogens could spread through the air and infect other patients. To remove pathogens effectively in order to reduce additional infections, efficient ventilation of hospital wards is critical. This study used age of air data to analyze ventilation efficiency within hospital wards. The validity of the numerical analysis method was verified by comparison with age of air data obtained from an experimental test on a four-bed hospital ward. The verified numerical analysis method was used to establish the airflow within a hospital ward in relation to the use of ventilation systems, air cleaners, and individual patient curtains. The efficiency of ventilation according to each factor was compared using age of air data. Considerable differences in the age of air were identified depending on the location of the patient with respect to both the air cleaner and the inlet/outlet duct of the ventilation system. Furthermore, individual curtains were found to interfere with air circulation, reducing ventilation efficiency and increasing the age of air at the location of each patient.

Keywords

Age of air Ventilation system Air cleaner Hospital ward Patient curtain


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