Journal of Urban Science (도시과학)

Urban Science Institute (인천대학교 도시과학연구원)
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Comparison of pollutant removal efficiency according to the locations of the supply and exhaust

격리병실내 급배기구 위치에 따른 오염물 제거효율 비교

  • 원안나 (경북대학교 건설환경에너지융합기술원)
  • Received : 2020.06.03
  • Accepted : 2020.12.30
  • Published : 2020.12.30
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Abstract

The Recently, several countries have been affected by respiratory diseases, resulting in renewed research interest in their prevention and control. One such example was the 2015 outbreak of Middle East Respiratory Syndrome (MERS) in South Korea and COVID-19. In this study, we performed experiments and simulations based on concentration decay using CO2 as the tracer gas to elucidate the pollutant-removal efficiency for different inlet and exhaust locations and outdoor air-supply ratios. The wall inlet exhibited a higher pollutant-removal efficiency, owing to the upward movement of the air from the lower zone to the upper one. In conclusion, it is recommended that a total air-conditioning plan for isolation rooms be established as well as efficient system operation for pollutant removal and air-flow control to prevent the transmission of infections from the patients to others.

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References

  1. Centers for diease control & prevention, (2015). Infection diseases surveillance yearbook.
  2. Ministry of health and welfare of Korea. (2015) Hospital which MERS patients were founded 2015.
  3. Melikov AK, Bolashikov Z, Georgiev E. Novel ventilation strategy for reducing the risk of airborne cross infection in hospital rooms. In: Proceedings of indoor air 2011 [Austin, USA].
  4. Hua Qian, Yuguo Li, Peter V. Nielsen, Xinhua Huang, Spatial distribution of infection risk of SARS transmission in a hospital ward, Building and Environment, Volume 44, Issue 8, August 2009, Pages 1651-1658 https://doi.org/10.1016/j.buildenv.2008.11.002
  5. G. Cao, H. Awbi, R. Yao, Y. Fan, K. Siren, R. Kosonen, J. Zhang, A review of the performance of different ventilation and airflow distribution systems in buildings, Build. Environ. 73 (2013) p.171-186. https://doi.org/10.1016/j.buildenv.2013.12.009
  6. S.L. Sinha, R.C. Arora, S. Roy, Numerical simulation of two dimensional room air flow with and without buoyancy, Energy Build., 32 (2000), pp. pp.121-129 https://doi.org/10.1016/S0378-7788(99)00047-X
  7. J.A. Khan, C.E. Feigley, E. Lee, M.R. Ahmed, S. Tamanna, Effects of inlet and exhaust locations and emitted gas density on indoor air contaminant concentrations, Build. Environ., 41 (7) (2006), pp. pp.851-863 https://doi.org/10.1016/j.buildenv.2005.04.002
  8. W. Wu, Z. Lin, An experimental study of the influence of a walking occupant on three air distribution methods, Build. Environ., 85 (2015), pp. 211-219 https://doi.org/10.1016/j.buildenv.2014.12.009
  9. C.Y. Shaw, J.S. Zhang, M.N. Said, F. Vaculik, R.J. Magee, Effect of air diffuser layout on the ventilation conditions of a workstation, Part 1: air distribution patterns, Part 2: air change efficiency and ventilation efficiency, ASHRAE Trans., 99 (2) (1993), pp. pp.125-143
  10. W.J. Fisk, D. Faulkner, D. Sullivan, F. Bauman, Air change effectiveness and pollutant removal efficiency during adverse mixing conditions, Indoor Air, 7 (1997), pp. 55-63 https://doi.org/10.1111/j.1600-0668.1997.t01-3-00007.x
  11. Hideyuki Amai, Atila Novoselac, Experimental study on air change effectiveness in mixing ventilation, Building and Environment, Volume 109, 15 November 2016, Pages 101-111 https://doi.org/10.1016/j.buildenv.2016.09.015
  12. Leung, M., Chan, A.H.S., Control and Management of Hospital Indoor Air Quality, Medical Science Monitor, 12(3), SR17-23
  13. ANSI/ASHRAE Standard 129e1997, Measuring Air-change Effectiveness, American Society of Heating, Refrigerating and AirConditioning Engineers, Inc., Atlanta, GA, 2002.
  14. A.N. WON, Hae-Eun SONG, Young-Kwon YANG, Jin-Chul PARK, Jung-Ha HWANG, Calculation of Appropriate Minimum Size of Isolation Rooms based on Questionnaire Survey of Experts and Analysis on Conditions of Isolation Room Use, Journal of Physics(scopus), 2017 (doi:10.1088/1742-6596/870/1/012025)
  15. Publication of the Ministry of Health and Welfare (on standard patient room size), 2016.
  16. Song, A.Won, S.Kim, C.Lee, J.Hwang, Analysis of indoor airflow in the respiratory disease ward department of a general hospital, Korean Institute of Architectural Sustainable Environment and Building System, Vol.12 No.1, 2018.02
  17. S. Liu, A. Novoselac, Air diffusion performance index (ADPI) of diffusers for heating mode, Build. Environ. 87 (2015) 215-223. https://doi.org/10.1016/j.buildenv.2015.01.021