A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Ultraviolet germicidal irradiation (UVGI) for in-duct airborne bioaerosol disinfection: Review and analysis of design factors
https://orcid.org/0000-0002-6539-5504
https://orcid.org/0000-0001-5211-8826
Abstract The rapid increase in global cases of COVID-19 illness and death requires the implementation of appropriate and efficient engineering controls to improve indoor air quality. This paper focuses on the use of the ultraviolet germicidal irradiation (UVGI) air purification technology in HVAC ducts, which is particularly applicable to buildings where fully shutting down air recirculation is not feasible. Given the poor understanding of the in-duct UVGI system regarding its working mechanisms, designs, and applications, this review has the following key research objectives: Identifying the critical parameters for designing a UVGI system, including the characterization of lamp output, behavior of the target microbial UV dose-response, and evaluation of the inactivation performance and energy consumption. Elucidating the effects of environmental factors (air velocity, air temperature, and humidity) on the UVGI system design parameters and optimization of the in-duct UVGI design. Summarizing existing UVGI system designs in the literature and illustrating their germicidal and energy performance in light of COVID-19 mitigation.
Highlights Key design elements of in-duct UVGI systems are identified, and their interactions are elucidated. A convective heat loss ratio r is proposed to correlate lamp characteristics with the wind-chill impact on the UV lamps. In-duct UVGI system designs are summarized. UV rate constant of airborne SARS-CoV-2 is estimated. The energy consumption is estimated towards SARS-CoV-2 mitigation.
Ultraviolet germicidal irradiation (UVGI) for in-duct airborne bioaerosol disinfection: Review and analysis of design factors
https://orcid.org/0000-0002-6539-5504
https://orcid.org/0000-0001-5211-8826
Abstract The rapid increase in global cases of COVID-19 illness and death requires the implementation of appropriate and efficient engineering controls to improve indoor air quality. This paper focuses on the use of the ultraviolet germicidal irradiation (UVGI) air purification technology in HVAC ducts, which is particularly applicable to buildings where fully shutting down air recirculation is not feasible. Given the poor understanding of the in-duct UVGI system regarding its working mechanisms, designs, and applications, this review has the following key research objectives: Identifying the critical parameters for designing a UVGI system, including the characterization of lamp output, behavior of the target microbial UV dose-response, and evaluation of the inactivation performance and energy consumption. Elucidating the effects of environmental factors (air velocity, air temperature, and humidity) on the UVGI system design parameters and optimization of the in-duct UVGI design. Summarizing existing UVGI system designs in the literature and illustrating their germicidal and energy performance in light of COVID-19 mitigation.
Highlights Key design elements of in-duct UVGI systems are identified, and their interactions are elucidated. A convective heat loss ratio r is proposed to correlate lamp characteristics with the wind-chill impact on the UV lamps. In-duct UVGI system designs are summarized. UV rate constant of airborne SARS-CoV-2 is estimated. The energy consumption is estimated towards SARS-CoV-2 mitigation.
Ultraviolet germicidal irradiation (UVGI) for in-duct airborne bioaerosol disinfection: Review and analysis of design factors
https://orcid.org/0000-0002-6539-5504
https://orcid.org/0000-0001-5211-8826
Abstract The rapid increase in global cases of COVID-19 illness and death requires the implementation of appropriate and efficient engineering controls to improve indoor air quality. This paper focuses on the use of the ultraviolet germicidal irradiation (UVGI) air purification technology in HVAC ducts, which is particularly applicable to buildings where fully shutting down air recirculation is not feasible. Given the poor understanding of the in-duct UVGI system regarding its working mechanisms, designs, and applications, this review has the following key research objectives: Identifying the critical parameters for designing a UVGI system, including the characterization of lamp output, behavior of the target microbial UV dose-response, and evaluation of the inactivation performance and energy consumption. Elucidating the effects of environmental factors (air velocity, air temperature, and humidity) on the UVGI system design parameters and optimization of the in-duct UVGI design. Summarizing existing UVGI system designs in the literature and illustrating their germicidal and energy performance in light of COVID-19 mitigation.
Highlights Key design elements of in-duct UVGI systems are identified, and their interactions are elucidated. A convective heat loss ratio r is proposed to correlate lamp characteristics with the wind-chill impact on the UV lamps. In-duct UVGI system designs are summarized. UV rate constant of airborne SARS-CoV-2 is estimated. The energy consumption is estimated towards SARS-CoV-2 mitigation.
Ultraviolet germicidal irradiation (UVGI) for in-duct airborne bioaerosol disinfection: Review and analysis of design factors
Luo, Hao (author) / Zhong, Lexuan (author)
Building and Environment ; 197
2021-03-29
Article (Journal)
Electronic Resource
English
The use of ultraviolet germicidal irradiation (UVGI) in disinfection of airborne bacteria
| British Library Online Contents | 2002