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Development of a non-contact mobile screening center for infectious diseases: Effects of ventilation improvement on aerosol transmission prevention.
Cho, Jinkyun; Kim, Jinho; Kim, Yundeok.
  • Cho J; Department of Building and Plant Engineering, Hanbat National University, Daejeon 34158, Republic of Korea.
  • Kim J; Department of Fire Protection, Safety and Facilities, Suwon Science College, Hwasung 18516, Republic of Korea.
  • Kim Y; Department of Architectural Engineering, Woosong University, Daejeon 34606, Republic of Korea.
Sustain Cities Soc ; 87: 104232, 2022 Dec.
Article in English | MEDLINE | ID: covidwho-2183253
ABSTRACT
Under the global landscape of the prolonged COVID-19 pandemic, the number of individuals who need to be tested for COVID-19 through screening centers is increasing. However, the risk of viral infection during the screening process remains significant. To limit cross-infection in screening centers, a non-contact mobile screening center (NCMSC) that uses negative pressure booths to improve ventilation and enable safe, fast, and convenient COVID-19 testing is developed. This study investigates aerosol transmission and ventilation control for eliminating cross-infection and for rapid virus removal from the indoor space using numerical analysis and experimental measurements. Computational fluid dynamics (CFD) simulations were used to evaluate the ventilation rate, pressure differential between spaces, and virus particle removal efficiency in NCMSC. We also characterized the airflow dynamics of NCMSC that is currently being piloted using particle image velocimetry (PIV). Moreover, design optimization was performed based on the air change rates and the ratio of supply air (SA) to exhaust air (EA). Three ventilation strategies for preventing viral transmission were tested. Based on the results of this study, standards for the installation and operation of a screening center for infectious diseases are proposed.
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Full text: Available Collection: International databases Database: MEDLINE Type of study: Experimental Studies / Prognostic study / Randomized controlled trials Language: English Journal: Sustain Cities Soc Year: 2022 Document Type: Article

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Full text: Available Collection: International databases Database: MEDLINE Type of study: Experimental Studies / Prognostic study / Randomized controlled trials Language: English Journal: Sustain Cities Soc Year: 2022 Document Type: Article