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 Numerical Study of Ultraviolet Germicidal Effect Against SARS-CoV-2 Virus
Tác giả hoặc Nhóm tác giả: Nguyen Duy Minh Phan, Ngo Quoc Huy Tran, Le Anh Doan, Quang Truong Vo, Duy Chung Tran, Thi Thanh Vi Nguyen, Van Sanh Huynh, Tran Anh Ngoc Ho, Duc Long Nguyen, Cuong Mai Bui
Nơi đăng: Lecture Notes in Mechanical Engineering; Số: 2022;Từ->đến trang: 913-924;Năm: 2022
Lĩnh vực: Kỹ thuật; Loại: Bài báo khoa học; Thể loại: Quốc tế
TÓM TẮT
This paper presents a numerical investigation of Ultraviolet (UV) disinfection performance against the recently explored SARS-CoV-2 Virus. The UV lighting source is of a vertical lamp supposed to be put in popular mobile UV-C devices. The Finite Volume Method (FVM) and Discrete Ordinates (DO) model are adopted to deal with UV irradiance. Various results for the formation of an effective disinfection zone, detailed disinfection rate, and UV exposure duration are discussed and analyzed in detail. Results show that the bactericidal influence against SARS-CoV-2 viruses, which is strongest in the horizontal central plane through the UV lamp, can be significantly increased with the upgrade in the lamp power utilized. Furthermore, the UV exposure duration is found to have a considerable effect on the disinfection performance. Specifically, the disinfection rate is greatly improved, resulting in a remarkable expansion in the effective disinfection zone with a longer exposure period. Furthermore, the exposure duration required for 90% total viruses being eliminated with different lamp wattages are reported.
ABSTRACT
This paper presents a numerical investigation of Ultraviolet (UV) disinfection performance against the recently explored SARS-CoV-2 Virus. The UV lighting source is of a vertical lamp supposed to be put in popular mobile UV-C devices. The Finite Volume Method (FVM) and Discrete Ordinates (DO) model are adopted to deal with UV irradiance. Various results for the formation of an effective disinfection zone, detailed disinfection rate, and UV exposure duration are discussed and analyzed in detail. Results show that the bactericidal influence against SARS-CoV-2 viruses, which is strongest in the horizontal central plane through the UV lamp, can be significantly increased with the upgrade in the lamp power utilized. Furthermore, the UV exposure duration is found to have a considerable effect on the disinfection performance. Specifically, the disinfection rate is greatly improved, resulting in a remarkable expansion in the effective disinfection zone with a longer exposure period. Furthermore, the exposure duration required for 90% total viruses being eliminated with different lamp wattages are reported.
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