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CFD 해석을 이용한 출입문 개폐와 인체이동에 따른 음압격리병실에서의 오염물질 유출량 분석

Analysis on Contaminant Migration from Negative Pressure Isolation Ward during Door Opening and Human Movement using CFD Simulation

  • 투고 : 2017.05.16
  • 심사 : 2017.08.23
  • 발행 : 2017.10.30

초록

Recent outbreak of Middle East Respiratory Syndrome(MERS) in KOREA, brought up the public demands for preventing infectious diseases. To fulfill the demands, KOREA Ministry of Health and Welfare(MOWH) and Centers for Disease Control and Prevention(CDC) are working on increasing the number of Negative Pressure Isolation Ward(NPIW) in hospitals. NPIW prevents air migration from ward by maintaining different pressure with adjacent areas. However, previous studies have shown that air migration can be observed in situation of door openings. In this study, different door opening speed and human movement were simulated with Computational Fluid Dynamics(CFD) to observe air migration from NPIW. Total four cases were simulated which differs from each other by door open/close speed and human movement. Result showed that faster door opening speed can reduce air migration due to the total opening duration of the door. The cases with human movement involved, showed higher air migration because the air migrated father to the anteroom with the human. As a result, short duration of the door opening and closing is recommended and when medical staff enters of leaves the ward, they should take few moments before they move to adjacent area.

키워드

과제정보

연구 과제 주관 기관 : 한국연구재단

참고문헌

  1. Sung M. K., Shin C. W., Kim H. J., & Kwon S.J. (2013). The effect of staff movement on the dispersion of airborne infectious contaminants in negative pressure isolation wards, CLIMA.
  2. Kwon S. J., & Sung M. K. (2016). Isolation Effectiveness by Progressive Space Organization in Negative Pressured Isolation Unit. KIHA, 22(4), 79-86.
  3. Sung. M. K. (2015). From a MERS point of view, hospital ventilation system and infection control, Magazin of SAREK, 44(8), 58-64.
  4. Yoon J. H., Lee B. H., Yeo M. S., & Kim K.W. (2016). Comparison of Domestic and Foreign Guidelines for Preventing Airborne Infection in Negative-Pressure Isolation Rooms. Proceeding of Annual Conference of the architectural Institute of KOREA, 36(2), 688-689.
  5. Jo J. K., Woo K. H., & Kang H.S. (2017). Experimental Study of an AIIR Ventilation System for Effective Removal of Airborne Contamination in Hospitals. Journal of the Architectural Institute of KOREA Structure & Construction, 33(3), 85-90. https://doi.org/10.5659/JAIK_SC.2017.33.3.85
  6. Bang J. L., Jo S. M., & Sung M. K. (2016). Study on air migration in negative pressure isolation ward when door openings and human movement, Proceeding of Annual Conference of the architectural Institute of KOREA, 36(1), 265-266.
  7. Han M. C. (2010). A study on analysis of airflow against the spread of airborne virus through the airborne infection isolation ward, Master's thesis, Hanyang University.
  8. Jo S. M. (2016). Air migration in negative pressure isolation ward with door opening and human movement, Master's thesis, Sejong University.
  9. Tang J. W., Eames I., Li Y., Taha Y. A., Wilson P., Bellingan G., Ward K. N., & Breuer J. (2005). Door-opening motion can potentially lead to a transient breakdown in negative-pressure isolation conditions: the importance of vorticity and buoyancy airflows, Journal of Hospital Infection, 61, 283-286. https://doi.org/10.1016/j.jhin.2005.05.017
  10. Kalliomaki P., Saarinen P., Tang J. W., & Koskela H. (2016). Airflow patterns through single hinged and sliding doors in hospital isolation rooms e Effect of ventilation, flow differential and passage. Building and Environment, 107, 154-168. https://doi.org/10.1016/j.buildenv.2016.07.009
  11. US CDC. (2007). Guideline for Isolation Precautions: Preventing Transmission of Infectious Agents in Healthcare Settings.
  12. US CDC. (2005). Guidelines for Preventing the Transmission of Mycobacterium tuberculosis in Health-Care Settings.
  13. KOREA Ministry for Health, Welfare and Family Affairs. (2016). The 2015 MERS OUTBREAK IN THE REPUBLIC OF KORA: LEARNING FROM MERS.
  14. KOREA Ministry for Health, Welfare and Family Affairs. (2016). INFECTIOUS DISEASE CONTROL AND PREVENTION ACT, Article 8-2(Infectious Disease Hospitals).
  15. KOREA Centers for Disease Control. (2017). Guideline for the operation and management of nationally designated inpatient beds.
  16. Healthcare Engineering Association of Japan. (2013). HEAS-02-2013; Design and management guidelines for hospital air-conditioning equipment.