한국입자에어로졸학회지 (Particle and aerosol research)

  • 제18권3호
  • /
  • Pages.51-59
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  • 2022
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  • 1738-8716(pISSN)
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  • 2287-8130(eISSN)
한국입자에어로졸학회 (Korean Association for Particle and Aerosol Research)
권호 표지
DOI QR코드

DOI QR Code

지하역사 승강장에서 코로나19 바이러스 공기감염 대응 공기조화기와 공기청정기의 적용 효과 비교

Comparison of applicability of HVAC and air cleaners in a subway station platform against airborne infection of SARS-CoV-2

  • 이건희 (한국기계연구원 지속가능환경연구실) ;
  • 김상복 (한국기계연구원 지속가능환경연구실) ;
  • 박인용 (한국기계연구원 지속가능환경연구실) ;
  • 홍기정 (한국기계연구원 지속가능환경연구실) ;
  • 이예완 (한국기계연구원 지속가능환경연구실) ;
  • 김학준 (한국기계연구원 지속가능환경연구실) ;
  • 김용진 (한국기계연구원 지속가능환경연구실) ;
  • 한방우 (한국기계연구원 지속가능환경연구실)
  • Lee, Gunhee (Department of Sustainable Environmental Research, Korea Institute of Machinery & Materials) ;
  • Kim, Sang Bok (Department of Sustainable Environmental Research, Korea Institute of Machinery & Materials) ;
  • Park, Inyong (Department of Sustainable Environmental Research, Korea Institute of Machinery & Materials) ;
  • Hong, Kee Jung (Department of Sustainable Environmental Research, Korea Institute of Machinery & Materials) ;
  • Lee, Yeawan (Department of Sustainable Environmental Research, Korea Institute of Machinery & Materials) ;
  • Kim, Hak-Joon (Department of Sustainable Environmental Research, Korea Institute of Machinery & Materials) ;
  • Kim, Yong-Jin (Department of Sustainable Environmental Research, Korea Institute of Machinery & Materials) ;
  • Han, Bangwoo (Department of Sustainable Environmental Research, Korea Institute of Machinery & Materials)
  • 투고 : 2022.01.26
  • 심사 : 2022.04.23
  • 발행 : 2022.09.30
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초록

In this work, virion concentration and its dose changes by HVAC and air cleaners were estimated in a subway station platform to control airborne infection of SARS-CoV-2. Collection efficiencies with particle size were measured for the air filter equipped in a HVAC in one subway station in Daejeon. Indoor PM2.5 changes according to outdoor PM2.5 with time were also measured to estimate air infiltration rate in the subway station platform. When infected persons generate virions by 104, 105, 106, 3 × 106 and 5 × 106 h-1 in a 2,400 m3 volume platform, the concentration and dose were estimated as 9, 92, 275 and 458 virions/m3 and 4, 43, 130 and 217 virions after 1 hour exposure, respectively. The concentration and dose were reduced by 70%, and 64%, respectively by operations of both HVAC (with a flow rate of 16,000 m3/h, MERV 11) and ten air cleaners(with total CADR 10,740 m3/h) compared to those without operation of both HVAC and air cleaners. However, virion dose in the platform was estimated to be too low at the general conditions due to a large space, a high air infiltration (3 h-1) and a short residence time (usually < 10 mins) in the platform irrespective of the operations of HVAC or air cleaners. HVAC with filters and air cleaners would be more necessary in the concourse or shopping areas in the subway stations to reduce the infection dose from a few hundred to several tens virions in a hour.

키워드

과제정보

서울특별시 서울산업진흥원 <서울글로벌챌린지 2021>사업을 통해 우수 논문으로 선정되어 작성된 논문입니다.

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